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Casanova, 1987

Description
Hooks: 8; anterior teeth: 6; posterior teeth: 4-5.
Maximum adult body length: 7 mm; tail: 51 %.
Body firm; transversal musculature on trunk; head wide; hooks not serrated. Fin bridge absent; one pair of short lateral fins both on trunk and tail; lateral fins fully rayed, rounded. Collarette long; gut diverticula absent; no eyes. Seminal vesicles conical; position of seminal vesicles: touching both posterior fins and tail fin. Ovaries of medium length, reaching to region of ventral ganglion; ova large. Adhesive papillae present; adhesive organs with adhesive appendages absent; apical glands absent.

Distribution: benthic neritic;

Remarks: 1 specimen found a Strait of Gibraltar.

Type locality: Gibraltar.

Spadella equidentata