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David, 1956

Description
Hooks: 7-11; anterior teeth: 6-8; posterior teeth: 14-17.
Maximum adult body length: 29 mm; tail: 20-28 %.
Body firm; transversal musculature absent; head wide; hooks not serrated. Fin bridge absent. Anterior fins of medium length, fully rayed, rounded; posterior fins of medium length, partially rayed, rounded. Collarette short or absent; gut diverticula present. Large eyes with T-shaped pigment spot. Seminal vesicles conical; position of seminal vesicles: at some distance from posterior fins, touching, or close to, tail fin. Ovaries of medium length, reaching to ventral ganglion; ova fairly small. Adhesive papillae and adhesive organs absent. Apical glands absent.

Distribution: epi- to bathypelagic; Antarctic waters.

Remarks:

Type locality: 59°19.1'S, 68°51.8'E.

Sagitta marri