6 Mr. E. A. Smith on MoUuscafroni the 



Atys hijaUna, Watson. 



Atijs hyalhia, "Watson, Gasteropoda 'Challenger' Exped. p. 640, 

 pi. xlviii. fig. ]. 



Hab. Off Andaman Islands, 15 fath. 



A single specimen, agreeing in every respect with the 

 type from Fiji. It is, however, rather larger, being 15g mm. 

 in length. 



Atys daruleyensifi, Brazier. 

 Afi/s dandryensis, Brazier, Pilsbry, Man. Conch, vol. xv. p. 272. 



Hab. Off Andaman Islands, 15 fatli. 



Agreeing precisely with specimens from Darnley Island 

 received iroiu Biazier. Perhaps belonging to the genus 

 Cylichna. 



Atys submal'eata, sp. n. 



Testa tenuis, pellucida, elongato-ovata, utrinque imperforala, incre- 

 menti lineis striata, lineis subdistantibus transversis leviter 

 malleata, utrinque tenuiter transversim striata ; labrum tenuis- 

 simum, paulo supra spiram prodnctum ; apertura antice sub- 

 canaliculata ; columella tortuosa, incrassata, reflexa, apprcssa, 

 apex concave impressus. 



Longit. 17 mm., diam. 9. 



Hab. Off Andaman Islands, 15 fath. 



A very thin species, peculiarly malleated. The labrum 

 arises from the middle of the impressed spire, is there 

 slightly thickened, but has no twist as in the typical forms 

 of the genus. 



Cylichna andamanica, sp. n. 



Testa irregulariter ovata, utrinque umbilicara, solidiuscula, alba, 

 supra et infra transversim confertim striata, in medio laevis ; an- 

 fractus ultimus paulo infra apiccm leviter constrictus ; labrum 

 intus incrassatum, ad marginem acutum : columella leviter 

 tortuosa, antice reflexa, ad basim eff'usa. 



Longit. 9 mm., diam. 5. 



Hab. Off Andaman Islands, 15 fath. 



Rather solid for so small a shell. The slight constriction 

 at the upper part of the body-whorl forms a solid crest above 

 it. The apical perforation is very small and deep — indeed, 

 narrower than the umbilicus. A very thin callus spreads 

 over the whorl, uniting the columella and the upjier end of 

 the labrum. 



