Clyptra. Leach. Zoological Journal, vol. ii, p. 208, July, 1825.
Leach has most briefly characterised a specimen in Savigny’s Museum, from the Red Sea, under the above name of Clyptra. It has only four valves, and its peduncle is smooth; by the latter character it is distinguished from Ibla. Apparently this is a distinct and new genus.
Mr. J. E. Gray, in ‘Proc. Zoolog. Soc.,’ 1848, p. 44, quotes a description by Stroem (‘Nym. Saml. Danske,’ 1788, 295, n. iii, f. 20), namely, “Lepas testâ compressâ 7-valvis, stipite lamellosâ.” It is found attached to Gorgonia placomus, in the North Sea. I suspect that this is the common [Scalpellum vulgare], and that Stroem counted the valves only on one side, overlooking the rudimentary and concealed rostrum; and this would give seven for the number of the valves. Had it not been for the expression “stipite lamellosâ,” I should have thought this might have been an unknown species of Dichelaspis.
Scalpellum lævis. Risso. Hist. Nat. des Product. de l’Europe Mérid., 1826, Tom. iv, p. 385.
The chief characteristic of this species appears to be indicated by its specific name. It is found in the Mediterranean, attached to Cidarites. I am inclined to believe that it is distinct from S. vulgare.
Scalpellum papillosum. King. Zoolog. Journal, vol. v, p. 334.
Captain King has described this species, taken from the depth of 48 fathoms, on the coast of Patagonia, in Lat. 44° 30´ S. It is probably distinct, but is so imperfectly described, that not even the number of the valves is given.
Polylepas (Pollicipes), Sinensis. Chenu. Illust. Conchyliolog., Pl. II, fig. 7.
This species is said to come from China; it is nearest to P. spinosus, but is, I think, distinct.