160 Mr. E. A. Smith on Mollusca from the 



scarcely nodulous costa. This winds up the spire a little 

 above the suture, which consequently has a channelled 

 appearance. The lip is very thin, finely undulated at the 

 edge, and grooved within, the grooves corresponding to the 

 external ridges. 



It belongs to that section of the genus which includes 

 C. Orbignyi^ C. cancellatus^ &c., wliich have the surface 

 ornamented with transverse grooves and ridges. It is not 

 sufficiently similar to any known species to suggest a com- 

 parison. 



The variety differs only in having the ridges plain instead 

 of nodulous. Some of tlie upper whorls, however, are 

 noduled at the angle, as in the type. 



4. Conus turriculatuSj Sowerby. 



Conus turriculatus, Sow. Thes. Couch, vol. iii. p. 328, pi. cclxxxviii. 

 figs. 643, 644; Weiukauff, Conch.-Cab. ed. 2, p. 377_, pi. Ixix. 

 figs. 10,11; Tryon, Man. Conch, vol. vi. p. 75, pi. xxiii. tig. 89; 

 Smith, Report '"Alert ' Coll. p. 487. 



Hah. Cheduba Island, Bay of Bengal, 20-30 fathoms 

 [^Investigator '). 



I have already shown, in the ' Alert ' Report, that G. acut- 

 angulus, Kiener (non Chemnitz), and C. gemmidatus^ 

 Sowerby, are synonymous with this species. It occurs in 

 the Mascarene Islands, the China Sea, and the Philippines. 



Tryon places this species among the synonyms of G. can- 

 cellatus, from which, however, it is perfectly distinct. 



5. Pleurotoma congener. (PI. III. figs. 4, 5.) 



Testa fusiformis, robusta, alba, infra suturam pallide rufo-cingulata, 

 inter tuberculos circa medium aufractuum rafo-punctulata ; an- 

 fractus 10-12, convexi, iufra suturam cingiilo duplicato et circa 

 medium altero planato tubcrculato cincti, liris spiralibus paucis 

 tenuibus incrementique liiieis conspicuis oruati, ultimus infra 

 cingulum liris 5-6 striisque intercalentibus cinctus, inferne 

 angustatus, in rostrum productus ; columella leviter obliqua, 

 rectiuscula ; labrum tenue, ad cingulum tuberculatum incisum ; 

 apertura intus lirata. 



Longit. 52 millim., diam, 17 : apertura cum canali 22 longa, in 

 medio 7 lata. 



Hah. Bay of Bengal, 128 fathoms; west of Colombo, 

 Ceylon, 142-400 fathoms. 



This species might almost be regarded as a short robust 

 form of P. Kieneriy Doumet *, which it resembles in many 



* Mag. de Zool. 1840, pi. x.f=Pl. carmata, Reeve (non Gray), Con. 

 Icon. fig. 56. PL speciosa, lleeve, /. c. fig. 9, = P. carinata, Gray, Griffith's 

 Anim. Kingdom, vol. xii. p. 599, pi. xxiii. fig. 2. 



