Casanova, 1992

Description
Hooks: 10-11; anterior teeth: 5-6; posterior teeth: 3-5.
Maximum adult body length: 8 mm; tail: 35-38 %.
Body large and firm, opaque; transversal musculature on trunk and tail; head wide; hooks not serrated. Fin bridge absent; one pair of medium length lateral fins both on trunk and tail; lateral fins fully rayed, rounded. Collarette long and narrow; gut diverticula absent; eyes absent. Seminal vesicles conical; position of seminal vesicles: touching both posterior fins and tail fin. Ovaries short; ova fairly small. Adhesive papillae and adhesive organs absent. Vestibular organs small with one row of papillae; apical gland cell complex present; neck canals absent.

Distribution: bathypelagic;

Remarks: 11 specimens found at about 1300 m in the East Pacific.

Type locality: 33°17'N, 118°37'W.

Phylum Chaetognatha
Order Aphragmophora
Family Heterokrohniidae
Genus Heterokrohnia
Species alvinae

Status in World Register of Marine Species

Not included in WoRMS database

Sorry, there are no scientific synonyms and common names available for this species

Casanova, J.-P., 1992. [Titel] [Tijdschrift] [pp]

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