Eunice coccinioides Augener 1922

Eunice coccinioides Augener, 1922

Eunice coccinioides Augener, 1922b:45.

Eunice fucata.—Augener, 1918:316–319, fig. 31 [not Eunice fucata Ehlers, 1887].

MATERIAL EXAMINED.—Two syntypes, ZMH V-5693, Isla Annobon, Angola, 7 Oct 1911, coll. Arn. Schultze

COMMENTS ON MATERIAL EXAMINED.—Augener (1918) gives a detailed description of the specimens from Isla Annobon; the description fits rather well with the specimens listed as types and Isla Annobon is here considered the type locality.

The sample contains two anterior ends and a series of median and posterior ends; of these one median piece and three posterior ends fit the anterior ends. One posterior end belongs to a species in group B-2; it is strongly branchiated even in the last setigers present and has dark brown or black subacicular hooks. Five median and posterior fragments lack subacicular hooks entirely and may belong to a species of Palola. The longer of the syntypes is described in detail.

DESCRIPTION.—Longer syntype incomplete, of unknown sex, with 133 setigers; length 80 mm long; maximal width 5 mm at setiger 20; length through setiger 10, 8 mm. Short syntype incomplete, of unknown sex, with 56 setigers; total length 32 mm; maximal width 4.5 mm at setiger 15; length through setiger 10, 7 mm.

Prostomium (Figure 32a) distinctly shorter than peristomium, about as wide as peristomium, less than as deep as peristomium. Prostomial lobes frontally rounded, dorsally inflated; median sulcus deep. Eyes on ceratophores of A-I, black. Antennae in shallow horseshoe, evenly spaced, similar in thickness. Ceratophores of A-I short, truncate cones; A-II and A-III with ring-shaped ceratophores; all ceratophores without articulations. Ceratostyles tapering, without articulations. A-I to middle of anterior peristomial ring; A-II to setiger 2; A-III to setiger 3. Peristomium massive, slightly flaring anteriorly. Separation between rings distinct dorsally and ventrally; anterior ring of total peristomial length. Peristomial cirri to middle of anterior peristomial ring, medially inflated, without articulations.

Maxillary formula of large syntype 1+1, 6+6, 10+0, 6+12, and 1+1; maxillary formula of small syntype 1+1, 5+6, 10+0, 5+10, and 1+1. Mx III part of distal arc with left Mx IV. Mx VI absent.

Branchiae (Figure 32g) present, pectinate, distinctly longer than notopodial cirri, not reduced in mid-body region, erect. Branchiae from setigers 7 or 8, continued to setiger 78 on large syntype, leaving roughly half of body abranchiate. Maximum 9 filaments. Stems much longer than notopodial cirri, tapering, slender, erect. Filaments longer than notopodial cirri, digitiform, slender.

Anterior neuropodial acicular lobes rounded; posterior acicular lobes truncate; aciculae emerging dorsal to midline. Presetal lobes low, transverse folds. Anterior postsetal lobes as high as acicular lobes, projecting as free lobes on ventral sides of acicular lobes, becoming reduced to low, transverse folds from about setiger 25. First 4 ventral cirri thick, tapering. Ventral cirri basally inflated from setiger 5; inflated portion forming thick transverse ridges; narrow tips tapering. Inflated bases becoming reduced from about setiger 55; ventral cirri from about setiger 70 slender, tapering, about as thick as notopodial cirri. Notopodial cirri supported by internal aciculae in all setigers. Anterior notopodial cirri basally inflated, short, tapering, becoming slightly longer and distinctly narrower in the last 50 setigers present. All notopodial cirri without articulations, relatively short.

Limbate setae marginally smooth. Shafts of pectinate setae slender, cylindrical. Blades of anterior pectinate setae (Figure 32e) slightly flaring, becoming more distinctly flaring in posterior setigers (Figure 32c). One marginal tooth slightly longer than other teeth; ∼12 teeth present. Shafts of compound falcigers (Figure 32b,f) slightly inflated, marginally smooth, without internal striations or distal beaks. Appendages short, tapering, with large heads, bidentate. Proximal teeth larger than distal teeth, narrow-based triangular, directed laterally, but tilted distally in anterior setigers (Figure 32f), directed distally (Figure 32b) in posterior setigers. Distal teeth tapering, distinctly bent in anterior setigers and gently curved in posterior setigers. Guards symmetrically bluntly pointed in and marginally serrated anterior setigers, rounded and marginally smooth in posterior setigers, without mucros. Pseudocompound falcigers and compound spinigers absent. Aciculae single, light copper-colored in anterior setigers, becoming distinctly darker brown in posterior setigers, distinctly projecting, thick, tapering, straight, cross-section round. Subacicular hooks (Figure 32d) copper- to chestnut-colored, bidentate. Hooks first present from setiger 28 or 30, present in all setigers thereafter, always single (except for replacements). Hooks tapering to narrow, bent necks and distinct head. Proximal teeth larger than distal teeth, directed laterally, but tilted distally. Distal teeth shorter than proximal teeth, blunt, directed obliquely laterally.

UNKNOWN MORPHOLOGICAL FEATURES.—Features associated with far posterior setigers; pygidium and anal cirri.

EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—Branchiae missing on posterior half of body.

CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 22, 56, 58, 59. Unknown Characters: 1, 2, 38–40, 42, 74, 78.

ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—38,2.