Taxon classification Animalia Heteronemertea Monostilifera

Amphiporus texanus Coe, 1951 Fig. 3 K–M

Description.

Four specimens up to about 15 mm long, 0.5 mm wide; dorsoventrally flattened, bluntly rounded at both ends; cephalic lobe narrower than foregut region. Dark brown body; with magnification, thick unpigmented margin (i.e., epidermis) appears white. Cerebral organ furrows vertical, precerebral. Row of about 6 ocelli present along each lateral margin of head; visible in squeeze preparation. Rhynchopore subterminal; proboscis large and thick, conspicuous papillae; central stylet slender (length: 42 µm), supported on wide cylindrical basis (34 × 10 µm) at middle of proboscis; two pouches with 2-4 accessory stylets each.

Distribution.

Gulf of Mexico and Southern Florida (Norenburg 2009); Curaçao (Schwartz and Norenburg 2005); Santa Marta, Colombia.