-
Shields, Wickham, and Kuris 1989
Nemertea
Dorsoventral aspect of the stylet (dagger-like) in the anterior proboscis chamber of C. regicides. Scale bar = 25 μm.
-
Shields, Wickham, and Kuris 1989
Nemertea
Detail of the feeding armature of C. regicides; F, posterior of foregut-esophagus; A, anterior proboscis chamber; arrow...Detail of the feeding armature of C. regicides ; F, posterior of foregut-esophagus; A, anterior proboscis chamber; arrow, middle proboscis chamber; P, posterior proboscis chamber. Scale bar = 100 μm .
-
Anterior end of a female C. regicides with the foregut-esophagus retracted (F) . Note the prominent dorsal ganglia (G)...Anterior end of a female C. regicides with the foregut-esophagus retracted (F) . Note the prominent dorsal ganglia (G) . Scale bar = 100 μm.
-
Shields, Wickham, and Kuris 1989
Nemertea
Composite drawing of female (left) and male (right) Carcinonemerles regicides from Paralithodes camtschatica...Composite drawing of female (left) and male (right) Carcinonemerles regicides from Paralithodes camtschatica . The foregut of the male is everted for comparison . Note that the reproductive system of the male is represented on the right, while the digestive system is figured on the left . APC, anterior proboscis chamber; CE, cerebrum; CL, cloaca; FO, foregut-esophagus; INT, intestine; LN, lateral nerve cord; MPC, middle proboscis chamber; OC, ocelli; OP, ovarian pore; OV, ovary; PA, parenchyma; PPC, posterior proboscis chamber; PS, proboscis sheath; RE, rhynchodaeum; ST, stomach; SV, seminal vesicle; TE, testis; VD, vas deferens.
-
Second pleopod (left) and third pleopod (right) of a female Pinnixa chaetopterana infested with Carcinonemertes...Second pleopod (left) and third pleopod (right) of a female Pinnixa chaetopterana infested with Carcinonemertes pinnotheridophila, showing the oval, mulberry-like, nemertean egg sacs which are attached to the hairs of the endopods along with the crab eggs. The third pleopod is uniramous (endopod only). CE, crab egg; EN, endopod; EX, exopod; NE, nemertean egg sac. Scale bar = 1 mm.
-
Photograph of a living ensheathed female and male Carcinonemertes pinnotheridophila just as they were removed from a 10.6...Photograph of a living ensheathed female and male Carcinonemertes pinnotheridophila just as they were removed from a 10.6 mm female crab host. The female worm is greatly contracted within the remains of its sheath (approximately 3.5 mm long) whereas the male is not. F, female; M, male; S, sheath.
-
holes produced by mature female nemerteans (one formerly in each chamber) in the floor of the branchial chambers between the...holes produced by mature female nemerteans (one formerly in each chamber) in the floor of the branchial chambers between the 7th and 8th thoracic segments. B. Ventral view of the same female with the abdomen removed to show the sheaths of Carcivlonemertes pinnotheridophila exiting via the sternum; the sheath on the left side of the sternum (right side in the drawing) exited via the suture between the 6th and 7th segments, whereas that on the right exited via the 7th and 8th segments. G, gill; H, hole; S, sheath; SR, seminal receptacle. Scale bar = 2 mm.
-
Semi-diagrammatic dorsal view of a female Pinnixa chaetopteruna with the left Sill chamber exposed and the abdomen flexed...Semi-diagrammatic dorsal view of a female Pinnixa chaetopteruna with the left Sill chamber exposed and the abdomen flexed backward to show the typical location of Carcinonemertespinnotheridophila within its sheath in the medial part of the chamber. Only the female worm is shown although a male was also in the same sheath. The posterior end of the sheath leaves the postero-medial end of the chamber and extends under the sternum (dashed lines). A, abdomen; G, Sill; S, sheath; W, female worm. Scale bar = 4 mm.
-
Transverse section through a female specimen in her sheath; one of the surface lapillae on the sheath is indicated by the...Transverse section through a female specimen in her sheath; one of the surface lapillae on the sheath is indicated by the arrowhead upper left. Scale bar = 200 um.
-
Section through a sheath to show the presence of male (to the left) and female (to the right) worms. Testes containing ripe...Section through a sheath to show the presence of male (to the left) and female (to the right) worms. Testes containing ripe spermatozoa in the male are indicated by arrowheads. OV, ovary. Scale bar = 200 um
-
Oblique section through the tip of the head to show the apical organ (AO) and part of the everted oesophagus (OE).
-
Oblique section through the tip of the head to show the partially everted oesophagus (OE). Note the absence of submuscular...Oblique section through the tip of the head to show the partially everted oesophagus (OE). Note the absence of submuscular glands from the extreme anterior portion of the body. Scale bar = 200 pm.
-
Carcinonemertes pinnotheridophila sp. nov. Drawing of central stylet and basis of a male obtained from a female...Carcinonemertes pinnotheridophila sp. nov. Drawing of central stylet and basis of a male obtained from a female Pinnixa chaetopteruna collected 11 July 1965 at Beaufort, North Carolina. Scale bar = 10 pm; total length of proboscis armature was 24 pm.
-
Transverse section through the intestinal region of an immature female. Subepidermal glands show black just below the body...Transverse section through the intestinal region of an immature female. Subepidermal glands show black just below the body wall muscle layers. The lateral nerve cords and blood vessels are indicated by large and small white arrowheads respectively, the four rows of ovaries are indicated by black arrowheads. ID. branch of intestinal diverticulum; IN, intestine. Scale bar = 200 pm.
-
The anterior portion of an immature female showing the distinct narrowing of the head just in front of the brain...The anterior portion of an immature female showing the distinct narrowing of the head just in front of the brain. Scale bar = 250 um.
-
Whole mount preparation of mature male; note the testes and seminal vesicle, indicated by small and large arrowheads...Whole mount preparation of mature male; note the testes and seminal vesicle, indicated by small and large arrowheads respectively. CG, cerebral ganglia. Scale bar = 250 pm.
-
Composite drawing of female (left) and male (right) Carcinonemertes wickhami from Panulirus interruptus...Composite drawing of female (left) and male (right) Carcinonemertes wickhami from Panulirus interruptus. Note the reproductive system of the male is represented on the right side of the body, while the digestive system is figured on the left side, and the circulatory system has been omitted for clarity. Key to labels: APC = anterior proboscis chamber; ES = foregut; DG = dorsal ganglia; ID = intestinal diverticula; LH = lateral horn of intestine; LN = lateral nerve cord; LV = lateral blood vessel; MPC = middle proboscis chamber; OC = ocellus; 0 = ovary; PPC = posterior proboscis chamber; PS = proboscis sheath; R = rhynchodaeum; S = shoulder; T = testis; TD = Takakura's duct system (vasa eferens, vas deferens, seminal vesicle, gonoduct); VG = ventral ganglion. Bar = 200 um.
-
Head and mid body List, Sylt, Germany between eggs of Carcinus maenas
-
Head and mid body List, Sylt, Germany between eggs of Carcinus maenas