680 DR. GWYN JEFFREYS ON THE MOLLUSCA OF THE [Nov. 14, 
8. EMARGINULA MULTISTRIATA, Jeffreys. (Plate L. fig. 12.) 
E. multistriata, Jeffr. in Ann. & Mag. N. H. July 1882, p. 30. 
‘ Porcupine’ Exp. 1870: Atl. St. 24-28. 
Distribution. Mediterranean (Italian Expedition, 1881); 217 fms. 
Family IV. Catyprraips. 
~ CALYPTR&ZA CHINENSIS, Linné. 
Patella chinensis, L. 8. N. p. 1257. 
C. chinensis, B.C. iii. p. 273, pl. vi. f. 6; v. p. 201, pl. Ix. 
ep Pa 
‘Porcupine’ Exp. 1870: Atl. St. Vigo B., 16, Setubal B., off C. 
Sagres, Tangier B., Gibraltar B.; Med. Algesiras B., Cartagena B., 
Benzert Road, Rasel Amoush, Adventure Bank. 
Distribution. Dublin Bay, Milford Haven, southern coasts of 
England and Channel Isles, Brittany, S.W. France, throughout the 
Mediterranean and Adriatic, Black Sea (Clessin), Red Sea (Issel), 
off Morocco (‘Travailleur’ Exp. 1881), Madeira and Canaries ; 
0-130 fms., usually inhabiting shallow water. The Scotch localities, 
given on the authority of Laskey and Leach, are certainly unreliable. 
Fossil. Miocene? : Modena (Foresti). Pliocene: Coralline, Red, 
and Norwich Crags, Belgium, S. France, Italy, N.W. Germany, 
Switzerland, Vienna Basin, Transylvania, Hungary, Rhodes, and 
Cos. Post-tertiary : Leghorn (Castelli, f. Appelius). 
There are about a dozen more or less recognized synonyms, 
including C. sinensis. The monstrous variety which is moulded on 
Turritella terebra is very curious. 
CREPIDULA UNGUIFORMIS, Lamarck. 
C. unguiformis, Lam. An. s. Vert. vi. (2) p. 25; Sowerby, Gen., 
Crepidula, f. 6.° 
‘Porcupine’ Exp. 1870: Med. St. Adventure Bank. 
Distribution. G. Gascony (De Folin) !, Morocco, Mediterranean 
and Adriatic, G. St. Lawrence and eastern coasts of N. America; 
0-40 fms. 
Fossil. Miocene: Vienna Basin, Switzerland, S.W. France. Plio- 
cene: Belgium, S. France, Italy, Aigeria. Post-tertiary : Pozzuoli 
(Philippi). 
This species also rejoices in, or rather laments, about a dozen 
synonyms. It is the Patella crepidula of Linné, C. fornicata of 
some authors (but, perhaps, not P. fornicata of Linné), and C. plana 
of Say. When the so-called C. fornicata is found adhering to the 
outside and C. plana to the inside of the same specimen of another 
American shell, they may easily be mistaken for distinct species. 
C. moulinst of Michaud is a well marked variety, its principal cha- 
racter being dependent on coloration. The young have a short 
spire like that of Calyptrea chinensis. Crepidula spirata of Nardo 
is also the present species, and derives its peculiar shape and pro- 
minent spire from being affixed to Turritella terebra, like Calyptrea 
chinensis. 
