THE MOLLUSCA HEDLEY. 483 



as the waist of the shell, then curving outwards. Columella 

 broad, sinuate, folded over a slight umbilical chink. Callus on 

 body whorl distinct, forming a decided angle posteriorly. Length 

 1^, breadth 1 mm. 



Three specimens from the lagoon beach. 



This species perhaps stands nearest to H. amphizosta, Watson,* 

 from which it is easily distinguished by the even more puffed 

 anterior half, the descent of the last whorl, and by the coarser, 

 more prominent sculpture. The young shells differ altogether in 

 contour from the adult, but may be recognised by their peculiar 

 sculpture. 



This novelty is named in honour of my accomplished friend, 

 Lieutenant A. VVaugh, R.N., of H.M.S. "Penguin," who, during 

 the Expedition to Funafuti, as on many previous occasions, afforded 

 his hearty aid and sympathy to every scientific undertaking. 



ATYS CYLINDRICA, Helbliny. 

 Pilsbry, Man. Conch., xv., 1893, p. 265, pi. xxxiii., figs. 60- 64. 



Abundant on the lagoon beach. 



This common Pacific shell ranges in Australia from Torres 

 Straits southwards to Port Stephens, N.S.W.; the " Challenger " 

 met it in Fiji ; I took it at Noumea, New Caledonia, and the 

 Museum has received from Mr. N. Hardy a specimen he collected 

 at Aneiteum, New Hebrides. 



ATYS HYALINA, Watson. 

 Pilsbry, loc. cit., p. 271, pi. xxxii., fig. 36. 



A single broken specimen from the Funafuti lagoon agrees with 

 specimens in the Museum from a type locality, Torres Straits. 

 The " Challenger " procured this from Fiji, and doubtfully from 

 Honolulu. 



ATYS DENTIPERA, A. Adams. 

 Pilsbry, loc. cit., p. 276, pi. xxvii., fig. 81. 



The occurrence of several specimens on the lagoon beach of 

 Funafuti points to a range across the whole Pacific, since this 

 habitat is intermediate between Marutea, Paumotus, in the 

 extreme east, where it was first discovered by Hugh Cuming, and 

 Torres Straits in the extreme west, where it was taken by the 

 " Challenger," as also at Fiji. Mr. H. Smithurst has presented 

 to the Museum a specimen he collected at Milne Bay, British 

 New Guinea. 



* Watson ChaU. Rep., Zool., xv., 1886, p. 662, pi. xlviii., fig. 11. 



