dcsimg

Comprehensive Description

provided by Smithsonian Contributions to Zoology
Eusarsiella gigacantha (Kornicker, 1958)

Figures 36–38

Sarsiella gigacantha Kornicker, 1958:250, figs. 47:8A,B, 76G, 77A–E, 88A,F,H,I.

Eusarsiella gigacantha.—Poulsen, 1965:83.

Sarsiella georgiana Darby, 1965:36, pl. 25: figs. 2–9.

HOLOTYPE.—USNM 122913, A–1 male, on slides and in alcohol.

TYPE-LOCALITY.—In the vicinity of Bimini, Bahamas.

MATERIAL.—Holotype; USNM 152314, adult male paratype.

DISTRIBUTION.—Bahamas and continental shelf of Georgia (Figure 2). Known depth range 1–24.7 m (Table 1).

DIAGNOSIS.—Carapace of adult female with alar posterodorsal process and crenulate anterior and ventral margins (Figure 36). Length 1.37 mm.

Seventh Limb: Females with many (ca. 15) bristles (Kornicker, 1958, fig. 76G).

SUPPLEMENTARY DESCRIPTION OF ADULT MALE (Figures 37, 38).—Carapace elongate with large rostrum and shallow incisur.

Ornamentation (Figure 37): Ventral margin with 8 ruffle-like processes; posterior margin with 2 processes (1 at posterodorsal corner, other near middle of posterior margin), each with long terminal bristle; surface with large alar process in posterodorsal part of valve (tip of process with single bristle); a narrow rib extending posteriorly from point near valve middle; ventral margin with bristles forming 2 rows; surface of valve with few scattered bristles, no fossae, and without coating of amorphous gel.

Infold: Two setal bristles present on posterior infold dorsal to caudal process.

Size: USNM 152314, length 1.23 mm, height 0.54 mm. Specimen number 122D-2 (from Kornicker 1958:250) length 1.3 mm, height 0.85 mm.

First Antenna (Figure 38a): Sensory bristle of fifth joint with abundant filaments on proximal bell-like part and about 5 short distal filaments; small bulge present at base of sensory bristle adjacent to filamentous bulbous part. Minute sixth joint with slender medial bristle. Seventh joint: a-bristle extending just beyond bristle of sixth joint; b-bristle almost twice length of a-bristle, with 1 short distal filament; c-bristle with tip broken off on specimens examined, long with at least 5 short marginal filaments. Eighth joint: d- and e-bristles bare, both well developed; f- bristle with tip missing on specimen examined, well developed with at least 4 marginal filaments; g-bristle similar to c-bristle, with at least 5 short marginal filaments.

Second Antenna: Protopodite bare. Endopodite 3-jointed (Figure 38b): first joint short with 2 short, proximal, anterior bristles; second joint only about one-third longer than anterior margin of first joint, with 3 short, stout bristles; third joint elongate, curving back on itself near middle, with rounded tip having 2 minute bristles. Exopodite without basal spines.

Maxilla: Reduced with few weak bristles.

Fifth Limb (Figure 38c): Epipodial appendage with 36 bristles. Single endite with 1 small bristle. Exopodite: First joint with 2 faint bristles; remaining joints with total of about 7 faint bristles, some hirsute.

Sixth Limb (Figure 38d): Fragmented on specimen examined but seemingly typical for genus.

Seventh Limb (Figure 38e): Minute, bare.

Furca (Figure 38f): Each lamella with 5 claws; claw 1 fused to lamella; remaining claws separated from lamella by suture; margin of lamella following claw 5 with few spines.

Bellonci Organ (Figure 38g): Elongate, widening distally, with rounded tip.

Eyes: Medial eye pigmented, bare (Figure 38g); lateral eye about same size as medial eye, pigmented, with 10 ommatidia (Figure 38h).

SUPPLEMENTARY DESCRIPTION OF A–1 MALE (holotype).—Kornicker (1958:250) stated that the undissected dried holotype was a female. Upon softening the specimen chemically and then removing it from the carapace, I have been able to identify it as an A–1 male, because of its having an elongate, 3-jointed endopodite of the second antenna. The carapace was illustrated by Kornicker (1958, figs. 47:8a,b; 88:H).

Size (from Kornicker 1958:250): USNM 122913 (Kornicker specimen number 190–1 A) length 1.37 mm, width 0.75 mm, height 1.14 mm.

First Antenna: Sensory bristle well-developed, as long as c-bristle of seventh joint, not short as indicated in illustration of female first antenna illustrated by Kornicker (1958: fig. 77c).

Endopodite of Second Antenna: Three jointed: first joint short with 2 small, proximal, anterior bristles; second joint longer than first, with 2 short bristles; third joint elongate, linear, with spine or bristle at tip.

DISTRIBUTION.—North Carolina continental shelf; Indian River, near Fort Pierce, Florida; Placida Harbor, Florida; Anclote Anchorage, Florida; Florida and Texas continental shelf; Laguna Madre, Aransas Bay, Corpus Christi ship channel, Texas (Figure 3, Table 1). Known depth range 0.15–57.5 m.

SUPPLEMENTARY DESCRIPTION OF ADULT FEMALE (Figures 39, 40, 42a–d; Plates 2–4).—Carapace oval in lateral view with prominent caudal process and without incisur; surface with about 17 spinous nodes forming oval approximately parallel to valve edge; a single node present anteriorly within oval, 5 nodes present between oval and anteroventral margin of valve, 4 small nodes present between oval and posterior valve margin (Figure 39; Plates 2a,b, 3a, 4a–c).

Ornamentation (Plates 2–4): In addition to nodes, surface with shallow bare fossae and abundant short pointed bristles; bristles on nodes longer than those between nodes and some have rounded tips with papillae (Plate 2d); long bristles, wide proximally, present along anterior and ventral valve margins and scattered over lateral surface of valves.

Infold (Figures 40a,b 42c,d; Plate 4f): Anterior infold at middle of valve with minute bristle near inner margin; posterior margin with 2 setose bristles dorsal to caudal process; caudal process with 3–5 bristles forming row and an additional bristle near inner margin.

Selvage: Wide lamellar prolongations with smooth outer edge present along anterior, ventral and posterior margins (Plate 4f).

Central Adductor Muscle Attachments: Consisting of several individual oval attachments (Figure 40c).

Size: USNM 152305, length 1.04 mm, height including caudal process 1.06 mm, height excluding caudal process 0.89 mm; USNM 144002, length 1.05 mm, height including caudal process 1.01 mm, height excluding caudal process 0.85 mm; USNM 158176, length 1.08 mm, height including caudal process 1.12 mm, height excluding caudal process 0.97 mm; USNM 157484, length 1.10 mm, height including caudal process 1.06 mm, height excluding caudal process 0.89 mm; USNM 107846, holotype, separated valves preserved in alcohol, left valve, length 1.18 mm, height including caudal process 1.12 mm, height excluding caudal process 0.99 mm; right valve, length 1.17 mm, height including caudal process 1.18 mm, height excluding caudal process 0.99 mm. USNM 107845, paratype from Aransas Bay, Texas, dry complete specimen, length 1.12 mm, height including caudal process 1.07 mm; height excluding caudal process 0.92 mm.

First Antenna (Figure 40d): First joint bare. Second joint with 1 dorsal bristle with short marginal spines. Third joint not separated from fourth by suture, with 1 dorsal bristle reaching fifth joint and 1 ventral bristle almost reaching middle of fourth joint; fourth joint with 1 dorsal bristle and 2 long ventral bristles. Sensory bristle of fifth joint with 2 short filaments, 1 proximal, 1 near middle; sixth joint with short medial bristle. Seventh joint: a-bristle about 3 times length of sixth joint; b-bristle bare, about twice length of a-bristle; c-bristle about same length as sensory bristle of fifth joint, with 2 minute filaments, 1 proximal, 1 near middle. Eighth joint: d- and e- bristles bare with blunt tips, almost as long as c- bristle; f- and g-bristles same length as c-bristle, with 2 minute filaments.

Second Antenna (Figure 40e): Protopodite bare. Endopodite one-jointed with 2 short anterior bristles and small terminal knob. Expodite: first joint with short medial spine on distal margin; bristle on second joint with several long hairs proximally on dorsal margin, about 15 proximal spines on ventral margin distal to the long hairs on dorsal margin, and natatory hairs on both margins distal to spines; some ventral spines also present on bristles of joints 3–5; bristles of joints 3–8 with natatory hairs; ninth joint with 2 bristles, 1 long with natatory hairs, 1 short, bare.

Mandible (Figure 40f): Coxale endite consisting of short stout spine with minute spine at tip; ventral margin of coxale with short hairs. Basale: ventral margin of basale with 4 short bristles, 3 proximal, 1 distal; 1 short bristle present on lateral surface near distal ventral bristle; dorsal margin with 2 short spines. Exopodite absent. Endopodite: first joint with spines on medial surface and stout smooth ventral claw; second joint with minute dorsal claw and stout smooth main claw; third joint with minute ventral and dorsal bristle and stout smooth terminal claw.

Maxilla (Figure 40g): Coxale with short anterior bristle; endite I with 6 bristles; endites II and III with total of about 8 bristles; basale with 1 short bristle near exopodite; exopodite with 2 bristles, 1 slightly more than length of other. Endopodite: first joint with alpha- and beta-bristles with few proximal teeth and distal marginal spines; second joint with 2 lateral a-bristles, 1 medial c-bristle, and 5 pectinate terminal bristles. tles.

Fifth Limb (Figure 40h): Epipodial appendage with 29 bristles; single endite present with 1 short bristle. Exopodite: first joint with 2 bristles with short marginal spines; second to fifth joints fused, hirsute; second joint with 2 spinous bristles; fused third to fifth joints with total of 4 bristles, 1 very short.

Sixth Limb (Figure 40i): Endite I with 3 short bristles; end joint with 10 spinous bristles separated by space from 2 stout posterior hirsute bristles; posterior margin of limb hirsute.

Seventh Limb (Figure 40j): Each limb with 8 bristles, 2 proximal, 1 on each side, and 6 terminal, 3 on each side; each bristle with 1–5 bells, no marginal spines; terminus with opposing combs, each with 5 or 6 teeth.

Furca (Figures 40k, 42a): Each lamella with 5 (rarely 6) claws followed by several small spines; claw 1 continuous with lamella, others separated by suture from lamella; all claws with pointed tips; claws 1–4 with teeth along posterior margins, some longer than others; slender spines or hairs present between claws 4 and 5, and 5 and 6.

Bellonci Organ (Figures 40l, 42b): One jointed, elongate, broadening distally, with rounded tip.

Eyes (Figures 40l, 42b): Lateral eye small pigmented, with 3 ommatidia; medial eye bare, pigmented, larger than lateral eye.

Upper Lip (Figures 40m, 42b): Helmet-shaped with 2 anterior processes, but without hairs or spines.

Genitalia (Figure 42a): Consisting of oval sclerotized ring.

Y-Sclerite (Figure 40h, 42a): Typical for family.

Eggs: USNM 152305 with 2 eggs in marsupium; USNM 144002 with 8 eggs in marsupium and several smaller unextruded eggs.

MATERIAL.—See “Station Data with Specimens Examined.”

DISTRIBUTION.—Rehobeth Bay, Maryland; Chesapeake Bay; continental shelves off Virginia, North Carolina, Georgia, and west Florida; Indian River, Placida Harbor, Alligator Harbor, and Anclote Anchorage, Florida; Texas Bays and Lagoons (Figure 2, Table 1). Known depth range 0.15–39 m. Parker (1975:131) listed the species (as Sarsiella angusta) among ostracodes collected in Hadley Harbor, Massachusetts; its presence there needs confirmation, but is certainly possible.

SUPPLEMENTARY DESCRIPTION OF ADULT FEMALE (Figures 43, 44, 48; Plates 5, 6).—Carapace oval in lateral view with short posteroventral caudal process; carapace narrow in dorsal view, sides flat, parallel, except for flaring anteroventral part; narrow concentric ridge present just within valve margins curves ventrally in caudal process area almost parallel to outer edge of process (Figure 43).

Ornamentation (Plates 5, 6a–e): Ridge paralleling valve edge appearing crinkled when viewed with dissecting microscope at low power, but when viewed with SEM distinctly ornamented with handlike clumps around shallow fossae with a central node (Plates 5e,f, 6c) and ridged tubercles (Plates 5e, 6b); bristles with crenulate base numerous along valve edge and scattered over valve surface (Plates 5a,b, 6d,e). Bristles emerge from slightly raised closed pore (Plate 6d); surface of valves at high magnification pustulose (Plate 6d). (Specimen photographed with the SEM did not have soft parts and is probably an A–1 juvenile, length 1.08 mm, but ornamentation is similar to that of adult).

Infold: Anterior infold slightly below valve middle with minute bristle near inner margin (Figure 43h); posterior infold with 2 setose bristles dorsal to caudal process; caudal process with only 2 or 3 bristles in addition to bristles along inner margin of infold (Figure 43c,d,f,g).

Selvage: Wide lamellar prolongation with minutely crenulate margin present along ventral margin (Plate 6f).

Central Adductor Muscle Attachments: Consisting of about 10 ovoid attachments (Figure 43a).

Size: USNM 151999A, length 1.33 mm, height 1.11 mm; USNM 151999B, length 1.17 mm, height 0.95 mm; USNM 151999C, length 1.29 mm, height 1.07 mm; USNM 144004, length 1.08 mm, height 0.95 with caudal process, 0.85 without caudal process; USNM 152304A, length 1.08 mm, height 0.92 mm (smallest ovigerous female in sample 3). (All height measurements include caudal process except where noted.)

First Antenna (Figure 44a): First joint bare. Second joint with spines along dorsal margin and 1 dorsal bristle with short marginal spines. Third joint short with 1 spinous dorsal bristle reaching distal margin of fourth joint; third and fourth joints not separated by suture; fourth joint with 1 short terminal dorsal bristle and 2 longer terminal ventral bristles; medial surface of fourth joint with few slender hairs forming row. Sensory bristle of fifth joint with 2 small marginal filaments, 1 proximal, 1 subterminal; sixth joint with small medial bristle. Seventh joint: a-bristle longer than medial bristle of sixth joint; b-bristle short, about one-half length of sensory bristle of fifth joint; c-bristle same length as sensory bristle, with 2 minute filaments, 1 proximal, 1 subterminal; eighth joint: d- and e-bristles bare, about same length as sensory bristle; f-bristle slightly shorter than sensory bristle, with 1 minute subterminal filament; g-bristle same length as sensory bristle, with 2 minute filaments, 1 proximal, 1 subterminal.

Second Antenna (Figure 44b): Protopodite bare, without medial bristle. Endopodite 1-jointed with 2 short bare proximal bristles. Exopodite: first joint with long hairs forming short rows along ventral margin, with small medial spine on distal margin; bristle of second joint reaching past end of exopodite, with natatory hairs, no marginal spines; bristles of joints 3–8 with natatory hairs, no spines; ninth joint with 2 bristles, 1 long with natatory hairs, 1 short with short marginal spines; joints 2–5 with few short spines along distal margin.

Mandible (Figure 44c,d): Coxale with short spines along ventral margin extending onto medial and lateral surfaces near margin, with small medial endite near ventral margin near middle of coxale. Basale: dorsal margin with 2 well-developed short bristles or spines, 1 distal to middle, 2 subterminal; medial surface near ventral margin with 4 short bristles, 3 proximal forming group, 1 distal; lateral surface at ventral margin with 1 short bristle near middle of margin. Endopodite: dorsal margin of first joint with slightly rippled outline, with cluster of spines near distal margin; medial surface with spines near middle; ventral margin with stout bare terminal claw; second joint with minute dorsal bristle and bare main claw; third joint with 1 short ventral bristle and 1 short dorsal bristle at base of main claw.

Maxilla (Figure 44e): Coxale with short anterior bristle; endite I with 6 bristles; endite II with 3 bristles; endite III with 4 bristles. Exopodite with 3 bristles, 1 bristle in middle and 2 shorter bristles, one on each side and lateral to long midbristle. Endopodite: first joint with alpha- and beta-bristles with few proximal teeth and distal marginal spines becoming finer distally along bristles; second joint with 2 lateral a-bristles, 1 medial c-bristle, and 5 stout pectinate terminal bristles.

Fifth Limb (Figure 44g): Epipodial appendage with 34 bristles; single endite present with 1 short bristle. Exopodite: first joint with 2 bristles with short marginal spines; second to fifth joints fused, hirsute; second joint with 3 spinous bristles; fused third to fifth joints with total of 4 bristles, 1 very short.

Sixth Limb (Figure 44h): Endite I with 3 bristles; end joint with 7–8 spinous bristles separated by space without bristles from 2 stout posterior hirsute bristles (appendage illustrated aberrant in having only 1 posterior bristle on end joint).

Seventh Limb (Figure 44i): Each limb with 10 bristles, 4 proximal, 2 on each side, and 6 terminal, 3 on each side; each bristle with 2–5 bells, no marginal spines; terminus with opposing combs, each with about 5 teeth.

Furca: Each lamella with 5 claws followed by several small spines; claw 1 continuous with lamella, others separated from lamella by suture; all claws with pointed tips and teeth along posterior margins; teeth in groups of about 6, with each tooth progressively longer and stouter distally.

Bellonci Organ (Figure 44j): Elongate, broadening distally, with rounded tip.

Eyes (Figure 44j): Lateral eye small, pigmented with 3 ommatidia; medial eye bare, pigmented, larger than lateral eye.

Upper Lip (Figure 44j): Helmet-shaped, without hairs or spines.

Genitalia (Figure 44f): Consisting of oval sclerotized ring.

Y-Sclerite (Figure 44f): Ventral branch with small triangular process on dorsal margin.

Eggs: USNM 15199A with 8 eggs in marsupium and 5 smaller eggs within body; USNM 15199B with 2 well-developed eggs in marsupium and about 6 unextruded; USNM 15199C with 3 large eggs in marsupium and 6 unextruded eggs; USNM 151996, 2 specimens, 1 with 5 eggs, the other with 7 eggs in marsupium; USNM 152304A with 2 eggs in marsupium.

DESCRIPTION OF ADULT MALE (Figures 45–48; Plates 7–9).—Carapace elongate with shallow incisur and prolonged posteroventral corner terminating in small caudal process (Figures 45, 46a,b, 47a; Plates 7a,b, 8a,b, 9a); posterodorsal corner with pointed process; alar process extending ventrally past edge of valve on some specimens; rostrum with small lateral process extending past anterior valve edge.

Ornamentation (Plates 7c–e, 8c,d,f, 9b–f): Narrow ridge paralleling valve edge except anteroventrally; surface of ridge with minute overlapping scales with convex posterior margins; scales present on posterodorsal process and on caudal process; the ridge forms outer edge of alar ventral process; surface with few scattered long bristles (Plates 7c, 8c, 9d).

Infold: Anteroventral infold with minute bristle posterior and ventral to incisur; caudal process with 2 small bristles plus 1 near inner margin of infold; usual 2 posterior flagellate bristles not observed.

Selvage (Plate 9e): Broad lamellar prolongation with smooth outer edge present along anterior, ventral, and posterior margin; selvage split at incisur.

Central Adductor Muscle Attachments (Figure 45): Consisting of about 12 individual ovoid attachments.

Size: USNM 152442, length 1.10 mm, height 0.66 mm, height 60% of length; USNM 151995, length 0.81 mm, height 0.57 mm, height 70% of length; USNM 152304B, length 0.81 mm, height 0.55 mm, height 68% of length; USNM 152304C (empty carapace), length 0.77 mm, height 0.51 mm, height 66% of length; USNM 144004A, length 0.83 mm, height 0.56 mm, height 67% of length; USNM 144004B, length 0.78 mm, height 0.54 mm, height 69% of length.

First Antenna (Figures 46e, 47b): First joint bare. Second joint with few long marginal hairs, third joint not delimited from fourth by suture, with 1 dorsal bristle; fourth joint with 1 dorsal bristle reaching middle of sixth joint. Fifth joint wedged between fourth and sixth joints at ventral margin; sensory bristle of fifth joint with abundant filaments (not all shown in illustrations), principle bristle with 4 short distal filaments and bifurcate tip; sixth joint with few distal spines on medial surface and I short, medial, terminal bristle. Seventh joint: a-bristle 2 to 3 times length of bristle of sixth joint; b-bristle about 3 times length of a-bristle, with 1 short distal filament and bifurcate tip; c-bristle longer than b-bristle, with 4 short distal filaments and bifurcate tip. Eighth joint: d- and e-bristles bare, filament-like with blunt tip, about same length as c-bristle; f- bristle as long as c-bristle, with 3 short distal filaments and bifurcate tip; g-bristle similar to f- bristle but with 4 short distal filaments and bifurcate tip.

Second Antenna (Figures 46f, 47c): Protopodite bare. Endopodite 3-jointed: first joint short with 2 minute anterior bristles; second joint elongate with 3 short, stout, spinous bristles, third joint elongate with 2 short bristles and ridges at tip. Exopodite: first joint with minute medial bristle on terminal margin; bristle of second joint extending past ninth joint, with natatory hairs but not spines; bristles of joints 2–8 with natatory hairs; ninth joint with 2 bristles, 1 long, 1 short, both with natatory hairs; joints 2–7 with short spines forming row along terminal margin.

Mandible (Figures 46g, 47d): Coxale endite consisting of minute, medial, proximal spine. Basale: medial surface with 4 short bristles near ventral margin (3 proximal, 1 near middle); ventral margin with 1 short bristle with base on lateral side; dorsal margin with 1 short midbristle and 2 fairly short terminal bristles. Endopodite: first joint with short spines forming clusters on medial surface and 1 stout, ventral, spinous, claw; second joint with spines forming clusters on medial surface and 1 stout, spinous claw; a minute bristle may be present on lateral side near dorsal edge of base of claw; dorsal margin of second joint with minute bristle; end joint with stout spinous terminal claw and 3 minute bristles near base of claw, 2 ventral, 1 dorsal. Exopodite absent.

Maxilla (Figures 46h, 47e): Limb minute, bristles weakly developed; precoxale and coxale with epipodial fringe along dorsal margin; coxale with short anterior bristle; exopodite with 3 bristles; first endopodite joint with 1 long alpha- bristle; endopodial and endite bristles weakly developed and difficult to discern on specimen.

Fifth Limb (Figures 46i, 47f): Epipodial appendage with 32 or 33 bristles. Endite I with 1 short bristle. Exopodial bristles weakly developed: first joint with 2 bristles, remaining fused joints with about 6 bristles.

Sixth Limb (Figures 46j,k, 47g): Endite I with 1 or 2 short bare bristles and 1 longer hirsute bristle; end joint with 1–3 short bristles with short hairs and marginal spines on medial side near ventral margin, and 8 longer hirsute bristles along ventral margin; posterior margin, and medial and lateral surfaces hirsute.

Seventh Limb (Figures 46l, 47h): Minute, bulbous proximally on USNM 152442, but not on 151995.

Furca (Figures 46m,n, 47i): Each lamella with 5 pointed claws; claw 1 joined with lamella, claws 2–5 separated from lamella by suture; minute spine between claws 4 and 5 on both lamellae; 3 minute spines following claw 5 on left lamella only; all claws with minute teeth along posterior margins, some teeth slightly longer and stouter than others.

Bellonci Organ (Figures 46o,p, 47j,k): Elongate, expanding distally, with rounded tip.

Eyes (Figures 46o,p, 47j,k): Lateral eye pigmented, with 4 or 5 ommatidia; medial eye pigmented, about same size as lateral eye.

Upper Lip: Not observed.

Posterior of Body (Figures 46n, 47i): Bare.

Copulatory Organs (Figures 46n, 47i): Clasping organ long with terminal hook; a peg present medially near middle of concave margin of hook; 1 or 2 proximal lobes present with short bristles.

Y-Sclerite (Figures 46n, 47i,l): Typical for genus.

SUPPLEMENTARY DESCRIPTION OF INSTAR IV FEMALE.—Carapace similar in shape to instar IV female illustrated by Kornicker and Wise (1962, fig. 7A–C) except small riblets shown in their dorsal view (fig. 7C) not present.

Size: USNM 157683A, length 0.94 mm, height 0.70 mm: USNM 152304C, length 0.83 mm, height 0.69 mm; USNM 152304B, length 0.83 mm, height 0.65 mm.

Seventh Limb: Each limb with 4 proximal bristles (2 on each side) and 4 terminal bristles (2 on each side); all bristles strongly tapering; terminal bristles with minute bell near tip. Terminus with few minute teeth near middle. (Terminal teeth and bells on terminal bristles not present on seventh limb illustrated by Kornicker and Wise (1962, fig. 7F), possibly overlooked; appendages of that specimen not extant.)

DISCUSSION OF VARIABILITY IN SIZE (Adult Carapace; Figure 48).—The carapaces of males collected in Aransas Bay, Texas (length 1.20 mm, Kornicker and Wise, 1962:68) and Alligator Harbor, Florida (length 1.10 mm) are longer than those collected in Placida Harbor (length 0.77–0.83 mm). No females were collected in Alligator Harbor, but the adult females from Aransas Bay and Placida Harbor are about the same size. The female reported from off Sapelo Island, Georgia (length 1.44 mm; Darby, 1965:38) is longer than the longest females from Aransas Bay (length 1.33 mm; Kornicker and Wise, 1962:68) and from Placida Harbor (length 1.33 mm). The carapace and appendages of both the elongate form and the short form of the adult male are illustrated herein (Figures 44–46; Plates 7–9).
license
cc-by-nc-sa-3.0
bibliographic citation
Kornicker, Louis S. 1986. "Sarsiellidae of the Western Atlantic and Northern Gulf of Mexico, and Revision of the Sarsiellinae (Ostracoda: Myodocopina)." Smithsonian Contributions to Zoology. 1-217. https://doi.org/10.5479/si.00810282.415