Polylepas vulgare. De Blainville. Dict. Sc. Nat., Plate, fig. 4. 1824.
Scalpellum læve, var. Leach. Zoolog. Journal, vol. ii, p. 215, 1825.
————— Siciliæ, var. Chenu. Illust. Conch. Pl. iv, fig. 9.
[Scalpellum vulgare], (et var.) Brown. Illust. of Conch., 1844, Pl. li., figs. 7 to 20.
S. (Herm.) valvis 14, si rostrum pæne rudimentale includatur: lateribus superioribus inæqualiter ovatis.
(Herm.) Capitulum with 14 valves, including the rudimentary rostrum: upper latera irregularly oval.
Mandibles, with four or five teeth: maxillæ, with the edge straight, bearing numerous spines.
Complemental Male flask-formed, with four rudimentary valves; no mouth; cirri not prehensile; attached to the occludent margin of the scutum, near the umbo.
Great Britain, Ireland, France, Norway, Naples. Attached to horny corallines, at from twenty to thirty, sometimes even to fifty fathoms in depth, according to Forbes and MacAndrew.
HERMAPHRODITE.