1901.] NATURAL SCIENCKS OF PHILADELPHIA. 419 



tribiited to Pfeiffer, the Academy of Katural Sciences of Philadel- 

 phia, and perhaps to other collections; and I suppose the figured 

 type is preserved in the collection of the Journal de Conchyliologie 

 in Paris. 



Upon examining the species, I find that it is very closely related 

 to my C. crenilabium of Kunchan, Okinawa; in fact, so inti- 

 mately, that I have no doubt that C Bernardii really came from 

 Okinawa or some other island of the Loo Choo chain. No species 

 of the same group has been found in China, Tonquin or elsewhere 

 on the mainland, and it is apparently a local group, specialized 

 on these islands. 



The source whence Bernard! procured his specimens is not 

 stated, but it is significant that in the same volume of the Journal 

 several species from Japan and the Loo Choo Islands, collected 

 by a French naval officer, M. Thomas, are described. Probably 

 G. Bernardii was one of the species taken by him in Loo Choo. 



C. Bernardii differs from C. crenilabium in having the surface- 

 sculpture very much coarser. The lunella is very strong below, 

 where it joins the middle of an elevated conic lower palatal fold, 

 the apex of which overhangs or curves downward in the middle. 

 Above, the lunella rapidly weakens, and curves backward into the 

 low upper palatal fold, which also has a low continuation on the 

 other side — apertureward — of the lunella. The projecting squar- 

 ish inferior lamella is much thickened below, and within the last 

 whorl it has the peculiar shape seen in C. crenilabium, the spiral 

 portion being superposed at the side of, rather than continuous 

 with, the externally visible part of the inferior lamella. It is 

 very strong, somewhat expanded in the region of the lunella. 

 The spiral and inferior lamella3 are of equal length, and continue 

 inward past the ventral position, to a point in line with the supe- 

 rior lamella. In G. crenilabium both lamellte extend further 

 inward, and the spiral lamella is decidedly longer than the othei*. 

 The crenulation of the interlamellar space is coarser in Bernardii 

 than in crenilabium. There are 11 whorls, the upper ones more 

 attenuated than in crenilabium, and the color is corneous-white, not 

 brownish. 



The clausilium of G. Bernardii is shaped almost exactly as in 

 C. crenilabium, broad in the middle, tapering and strongly curved 

 toward the apex, which is obtuse, slightly thickened and spout- 



