PYRULA. 265 



figured c'mbryonic and young shells, in Jour, de Conch., 147, 

 1808 (fig*. 23, 24); they were diagnosed by Prof. C. B. Adams, 

 in error, as Heli.r sulphured. 



Subgenus MALEA, Vol., 1833. 

 D. POMUM, Linn. PI. 5, fig. 26. 



Ribs low, about twelve in number, with shallow interstices; 

 columella plicate, excavated in the middle, lip thickened within 

 and plicate ; fulvous bay, clouded and maculated with white. 

 Length, 3 inches. 



Red Sea, Indian Ocean, Philippines, Society Islands. 

 This shell is Cassis labrosa, Martini. 



D. RINGENS, Swainson. PL 5, fig. 27. 



Globose, rather thick, with about sixteen spiral ribs, the 

 interstices sometimes obscurely single ridged ; columella plicate, 

 excavated in the middle; outer lip wide-margined and dentate; 

 light fulvous, obscurely maculated with white when young. 



Length, 4-8 inches. 



Peru, Panama, Mazatlan. 



The synonymy includes D. dentatum, Barnes; D. crasxilabris 

 and D. latilabris, Val. ; D. personatum and D. plicosum, Menke. 



Un figured Species of Dolium. 

 D. BAIRDII, Verrill and Smith. Dredged living off Martha's 



Vineyard, and off Delaware Bay, U. S. 



D. AMPHORA, Philippi. Hob. unknown. 



D. DUNKERI, Hanley. (Juvenile.) Natal. 



D. ALBUM, Conrad. (Allied to D. perdix.) Nab. unknown. 



Genus PYRULA, Lam., 1799. 

 P. RETICULATA, Lam. PI. 5, fig. 28 ; PL 6, fig. 33. 



Cancellated by rather close, sharp, small longitudinal and spiral 

 ridges, the latter often alternately larger and smaller; yellowish, 

 clouded with light brown, with about five obscure whitish bands 

 bearing chestnut maculations. Length, -J'5-3'5 inches. 



Indian Ocean, East Indies, Japan. 



Sowerby has in error figured this species as P. decussata,^Nood. 

 It is P.ficoides, Lam. (fig. 28); P. clathrata, Rousseau (fig. 33); 

 F.fortinr, Morch (assigned to West Indies in error). 



