272 ATYS. 



ent. The specimens from Stations 186 and 187 are quite young 

 shells, but are, I have no doubt, this species. From Honolulu, 40 

 fathoms, there is a specimen of Atys probably belonging to this 

 species, but in too bad condition for identification with any cer- 

 tainty. 



A. DARNLEYENSIS Brazier. Unfigured. 



Shell elongately oval, rather thin, shining, white, attenuated and 

 umbilicated at both ends, longitudinally obliquely plicated, strongly 

 transversely striated at each end, the centre or intermediate space 

 with fine irregular waved striae, sometimes straight ; outer lip thick- 

 ened within, nearly straight posteriorly, slightly twisted and pro- 

 duced ; inner lip at the anterior end forming a thin callous ridge at 

 the side of the umbilicus, slightly reflected, and ending in a denti- 

 form plate. Length 6J lines, breadth 3 lines (Bmz.). 



Darnley Island, Torres Straits, 30 fathoms. 



A. darnleyensis BRAZ., P. L. S. K S. W. ii, p. 85, 1877. 



A. CHEVERTI Brazier. Unfigured. 



Shell subcylindrical, white, thin, transparent, smooth and inflated 

 in the middle, transversely striated at both ends, the upper strise 

 extending nearly to the centre ; aperture narrowly linear, wide be- 

 low, outer lip slightly twisted and posteriorly produced, inflected 

 and angled in the centre ; inner lip anteriorly, with a strong fold. 

 Length 3 lines, breadth H lines (BrazJ). 



Darnley Island, Torres Straits, 30 fathoms ; Cape Grcnville, 

 North East Australia, 20 fathoms. 



A. cheverti BRAZ., P. L. S. N. S. W. ii, p. 86, 1877. 



This species is like a miniature Atys elongata. Some specimens 

 have an opaque appearance at the back of the aperture, others very 

 thin and transparent (Braz.). 



A. PULCHRA Brazier. Unfigured. 



Shell cylindrical, white, thin (under the lens) longitudinally 

 closely plicated, and transversely very finely striated, giving the 

 shell a rugose appearance, very minutely umbilicated at both ends, 

 aperture rather narrow, wide below ; outer lip thin, reflected inside, 

 slightly posteriorly produced ; columella with a slight curve, min- 

 utely expanded and reflected, leaving half the umbilicus covered. 

 Length 3 lines, breadth IL> lines (Braz.). 



Darnley Island, Torres Straits, 30 fathoms. 



