Amphiporidae

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

Figure 4.A–C Nemertopsis bivittata: B dorsal detail of the head and proboscis, C detail of the stylets D Ototyphlonemertes erneba (modified from Corrêa 1950 and Kirsteuer 1977) E–G Ototyphlonemertes lactea: E entire worm F detail of the statocysts G detail of the stylets H–J Zygonemertes fragariae: H entire worm I detail of the head J detail of the stylets K–M Zygonemertes virescens: K entire worm L detail of the head M detail of the stylets. ac accessory stylet, b base of the stylet, br brain, c sensorial cirrus, e eyes, p proboscis, pa proboscis papilla, s sylet, st statocysts.

Figure 4.A–C Nemertopsis bivittata: B dorsal detail of the head and proboscis, C detail of the stylets D Ototyphlonemertes erneba (modified from Corrêa 1950 and Kirsteuer 1977) E–G Ototyphlonemertes lactea: E entire worm F detail of the statocysts G detail of the stylets H–J Zygonemertes fragariae: H entire worm I detail of the head J detail of the stylets K–M Zygonemertes virescens: K entire worm L detail of the head M detail of the stylets. ac accessory stylet, b base of the stylet, br brain, c sensorial cirrus, e eyes, p proboscis, pa proboscis papilla, s sylet, st statocysts.

Figure 3.A–D Micrura ignea: A entire specimen, the worm has expulsed the proboscis B dorsal detail of the head C ventral detail of the head D detail of the tail E–G Amphiporus cruentatus: F dorsal detail of the head G detail of the stylets H–J Amphiporus cf. ochraceus: I dorsal detail of the head J drawing of the stylet K–M Amphiporus texanus: K entire worm L dorsal detail of the head M detail of the stylets. ac accessory stylet, b base of the stylet, br brain, c cirrus, cg cephalic grooves, e eyes, m mouth, p proboscis, pp proboscis pore, s sylet, v blood vessel.

Figure 3.A–D Micrura ignea: A entire specimen, the worm has expulsed the proboscis B dorsal detail of the head C ventral detail of the head D detail of the tail E–G Amphiporus cruentatus: F dorsal detail of the head G detail of the stylets H–J Amphiporus cf. ochraceus: I dorsal detail of the head J drawing of the stylet K–M Amphiporus texanus: K entire worm L dorsal detail of the head M detail of the stylets. ac accessory stylet, b base of the stylet, br brain, c cirrus, cg cephalic grooves, e eyes, m mouth, p proboscis, pp proboscis pore, s sylet, v blood vessel.

Figure 3.A–D Micrura ignea: A entire specimen, the worm has expulsed the proboscis B dorsal detail of the head C ventral detail of the head D detail of the tail E–G Amphiporus cruentatus: F dorsal detail of the head G detail of the stylets H–J Amphiporus cf. ochraceus: I dorsal detail of the head J drawing of the stylet K–M Amphiporus texanus: K entire worm L dorsal detail of the head M detail of the stylets. ac accessory stylet, b base of the stylet, br brain, c cirrus, cg cephalic grooves, e eyes, m mouth, p proboscis, pp proboscis pore, s sylet, v blood vessel.

The animal has a pair of raised longitudinal middorsal ridges (colored white on its head). The ridges, separated by a darker pigmented area, continue back along the body for several times the length of the head then fade out. This individual is hard to focus on because it is crawling rapidly. Photo by Dave Cowles, July 2012

Dorsal side of anterior portion of body showing markings on head and arrangement of ocelli. Coe, W. R. (1905). Nemerteans of the west and northwest coasts of America.. Bull. Mus. comp. Zool. Harv.. 1-318

This view of the side of the head shows rows of numerous black eyes. Photo by Dave Cowles, July 2012

Dorsal view of anterior portion of body showing markings on the head and the arrangement of ocelli.Coe, W. R. (1901). The Nemerteans of the Expedition. Proceedings of the Washington Academy of Sciences, Vol. 3, 1-110.

This view of the underside of the head (the worm is crawling on the water's surface film) shows the anterior but ventral mouth. Photo by Dave Cowles, July 2012

habitusCoe, W. R. (1905). Nemerteans of the west and northwest coasts of America.. Bull. Mus. comp. Zool. Harv.. 1-318

Amphiporus bimaculatus, probably an anterior fragment (Photo by: Dave Cowles, July 2012)

Outline of head to show position of markings and arrangement of ocelli.Coe, W. R. (1901). The Nemerteans of the Expedition. Proceedings of the Washington Academy of Sciences, Vol. 3, 1-110.

Amphiporus bimaculatus: head

Amphiporus bimaculatus: head

Stylets and anterior endBrunberg, L. On the Nemertean Fauna of Danish Waters. Ophelia, 1(1), 77-111.

Plate13.19 Stylet-region of Amphiporus bioculatus

Plate7.25 Spermatozoa of Amphiporus bioculatus

Plate8.3 Amphiporus bioculatus n. s.

Dorsal surface. Red lines represent blood vessels with red blood.Coe, W. R. (1905). Nemerteans of the west and northwest coasts of America.. Bull. Mus. comp. Zool. Harv.. 1-318

Outline of anterior portion of body showing position of ocelli and relation of cephalic to lateral blood vesselsCoe, W. R. (1905). Nemerteans of the west and northwest coasts of America.. Bull. Mus. comp. Zool. Harv.. 1-318

Outline of anterior portion of body showing number and position of ocelli. Coe, W. R. (1905). Nemerteans of the west and northwest coasts of America.. Bull. Mus. comp. Zool. Harv.. 1-318