

Dr. J. Gwyn Jeffreys on Mediterranean Mollusca. 395 



Cardium ciliare, L. G. ecfiinatum, L. C. minimum, Ph. 

 Isocardia cor, L. ; fry. Hundreds of specimens. 

 Circe minima, Mont. 



Venus rudiSj Poli. V.fasciata, Da Costa. V. ovata. Pen- 

 nant. 

 Tapes aureus 7 Graelin. 

 Uactra subtruncata 9 Da Costa. 

 Scrobicularia longicallus, Sc. S. alba^ W. Wood. S. pris- 



wiatica,) Mont. 



Pandora incequivalvis, L. 



Poromya granulata } Nyst and Westendorff. 



Necera cuspidata, Olivi. N. costellata, Deshayes. 



Corbula gibba, 01. 



Saxicava rugosa, Li. 



Xylopkaga dorsalis. Turton. 



SOLENOCOXCIIIA. 



Dentalium dentalis, L. D.Jihnn, G. B. Sowerby, Jim. 

 biphodentalium lofotense, M. Sars. S. quinquangulare, Forb 



Gastropoda. 



Tectura virginea, Miiller. 



Emargmula rosea. Bell. E. canceUata* Ph. E. pamllosa* 



1) * 

 usso. 



Calyytrcea chinensisy L. 



Scissurella crispata, Fleming. 



Cyclostrema minutum*, Jeffreys. (PL XVT. fig. 1.) 



Shell globular, with a somewhat oblique outline, rather 

 thin, transparent, and glossy : sculpture, none : colour clear 

 white : spire raised, but short : tvhorls 3, convex ; the last 

 equals three fourths of the shell ,• top whorl prominent and 

 twisted : suture rather deep : mouth circular, with a tendency 

 to angularity at the upper corner ; peristome continuous, but 

 not so completely disunited from the periphery as in other 

 species of this genus : umbilicus contracted, with a small 

 perforation : operculum chitinous, multispiral. L. 0'025, 



B. 0-025. 



Of this microscopic but peculiar species I found about two 

 hundred specimens. Bissoa fulgida might have been sup- 

 posed to be one of the most minute of European marine 

 shells ; but the present species is not one third of its size. 



Troclius magus 7 L. T. faniduniy Gm. T. Guttadauri 7 Ph. 



* Minute. 



27* 



