808 CLASS XIII. 
Sub-genera: Vassa, Buccinum, T'ritonium MvEwu.. and DEsHAYES 
(species of Buccinwm Lam.). Comp. DresHayes in Lamarck Hist. 
nat. des Ani. s. vert. x. pp. 151, 152. 
Sp. Buccinum undatum L., Encycl. méth., Vers. Pl. 399, fig. 1, BLArNy. 
Malac. Pl. 22, fig. 4. (See an anatomical description of this species by 
Cuvigr, Ann. du Mus. Xi. pp. 447—457, Mém. s. l. Mollusg. No. 17.) 
To Buccinum belongs also the genus Lburna Lam. (with the exclusion of 
Lburna glabrata, Ancillaria glabrata SowERBY). Sp. Buccinum spiratum 
L., Rumen. Amb. Rariteitk. Tab. 49, fig. p, Encycl. méth., Vers. Pl. 401, 
fig. 4. 
Terebra BruG. (species from genus Terebra ApANs.), Subula 
SCHUMACHER, Buainy. Shell turrite, subulate. Aperture longi- 
tudinal, much shorter than spire, excised at the apex by a sinus. 
Columella oblique, plicate; labrum with margin acute, thin. Oper- 
culum horny. 
Sp. Zerebra maculata Lam., Buccinum maculatum L., D’ ARGENVILLE Con- 
chyl. Pl. 11; fig. A, Encycl. méth., Vers. Pl. 402, fig. 1. 
Conus L. Shell convolute, conical. Spire short, sometimes 
acuminate, mostly flattened. Aperture narrow, longitudinal, eden- 
tulous. Columella short. Animal with foot anteriorly truncated, 
posteriorly attenuate, rotundate, with horny operculum; head with 
two tentacles subulate, bearing eyes on the outside towards the 
apex. 
Sp. Conus imperialis L., Rumpw. Amb. Rariteitk. Tab. 34, fig. H, Encyclop. 
méth., Vers. Pl. 319, figs. 1, 2, Buatnv. Malac. Pl. 26, fig. 5 ;—Conus 
gloria maris CHEMN., Conch. Tab. 143, figs. 1324, 1325, Enc. méth., Vers. 
Pl. 347, fig. 7. A very numerous genus of more than 300 species (accord- 
ing to DesHayrs, Lamarck Hist. nat. d. Ant. s. v., sec. Ed. XI. p. 7). 
Beautiful figures of many species are found in the Encycl. méth., Vers. Pl. 
315—347. Almost all are from the tropical seas; many fossil species from 
the tertiary formations are known. 
Voluta L. (exclusive of many species), LAM. Shell ovate, very 
often ventricose, with apex obtuse. Aperture longitudinal, excised 
towards the end by a sinus. Columella obliquely plicate. Ani- 
mal without operculum. 
Sp. Voluta ethiopica Lam. (Voluta’ ethiopica Li. in part), Encycl. méth., 
Vers. Pl. 387, fig. 1, Cuv. R. Ani., éd. ill., Moll. Pl. 52, fig. 1, &e. 
Volvaria Lam. (in part), SowERBY. 
Species fossil. Comp. REEVE Conchol, Syst. WU. pp. 246—248. 
