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Casanova, 1986

Hooks: 10-11; anterior teeth: 3-5; posterior teeth: 3.
Maximum adult body length: 7 mm; tail: 50-53 %.
Body stumpy; 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 and narrow; gut diverticula present; eyes with big rectangular pigment spot. Seminal vesicles conical; position of seminal vesicles: touching neither posterior fins nor tail fin. Ovaries short; ova small. Adhesive papillae present; adhesive organs with adhesive appendages absent; apical glands absent.

Distribution: benthic, neritic; Mediterranean.

Remarks: 18 immature specimens found in a cave near Cave of Trémies.

Type locality: about 43°15'N, 5°30'E.

Spadella ledoyeri