Neotanais wolffi Kudinova-Pasternak 1966

Neotanais wolffi Kudinova-Pasternak, 1966

Neotanais wolffi Kudinova-Pasternak, 1966:522–524, fig. 5.

CHARACTERS POTENTIALLY USEFUL IN IDENTIFICATION.—Stages Other Than Copulatory Male (copulatory males unknown): From described animal, undesignated stage and without further identification. Body length unknown (about 12 to 16 mm), 6.7 times longer than wide. Pereonites decidedly quadrangular in dorsal view, wider than long, and with marked corners; areas over pereopods not appreciably wider than anteriorly. Pereonites 5 and 6 each twice as long as pereonite 2. Pleonites decreasing in width from pleonite 1 to pleonite 5 giving pleon tapered appearance in dorsal view; sternites bearing “small spines” midventrally. Pleotelson 1.6 times wider than long. Incisive spines of right mandible all (?) without teeth, whereas first spine of left mandible bears teeth along proximal border. Pereopodal setae less strongly serrate than in Neotanais americanus. According to Kudinova–Pasternak’s (1966) text and figure 5, dactyli of pereopods III and IV (II also?) bear stout projections terminally (dorsally?) at insertion of spine. Uropods about as long as pleon and with 10 endopodal articles.

MATERIAL.—Vitjaz Sta. 3214, east of Honshu, Japan, 6156 to 6207 m, 1 “ ” without oostegites (body length 15.6 mm), 1 with oostegites (12.5 mm), and 1 M (?2) (5.1 mm); Vitjaz Sta. 3232, same general area, 6126 m, 1 M (?1) (4 mm). None of the material was examined.

LOCATION OF MATERIAL.—MZM: possibly all.

“Neotanais sp,” of Kudinova-Pasternak

“Neotanais sp.” Kudinova-Pasternak, 1966:521, 522, figs. 3, 4.

CHARACTERS POTENTIALLY USEFUL IN IDENTIFICATION.—Copulatory Male (other stages unknown): Carapace not especially narrow anteriorly, with about 4 anterolateral hairs, and only moderately pronounced respiratory chambers and chelipedal coxae in dorsal view. Pereonites wider than long and not markedly tapered anteriorly. First article of first antenna about 4.8 (?) times longer than wide. Chelipedal carpus strongly bent; propodus with serrate dorsal crest and additional serrations proximally on fixed finger which also bears 1 small proximal tooth, the latter followed by 2 small teeth and a distally directed tooth just before claw; dactylus with dorsal serrations proximally and 2 large, widely spaced, ventral teeth. Pereopods II–IV with heavy, strongly setulated setae; setal formula of pereopod II, (8,6,6,6); dactylar spine very short.