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Pathansali, 1974

Hooks: 8-10; anterior teeth: 5-8; posterior teeth: 8-16.
Maximum adult body length: 19 mm; tail: 22-29 %.
Body firm, opaque; transversal musculature absent; head narrow; hooks not serrated. Fin bridge absent. Anterior fins of medium length, fully rayed, rounded; posterior fins of medium length, fully rayed, angular. Collarette absent; gut diverticula absent. Small eyes with T-shaped pigment spot. Seminal vesicles with knob and trunk; position of seminal vesicles: touching tail fin, well separated posterior fins. Ovaries of medium length, reaching to region of ventral ganglion; ova large. Adhesive papillae and adhesive organs absent; apical glands absent.

Distribution: neritic; Japanese waters.

Remarks: 2 specimens found at 400 m.

Type locality:

Sagitta alvarinoae