i256 PUPELLA. 



notched at tlie terminations ; muscular impressions two in each 



. valve ; palleal impression having a large sinus ; ligament exter- 

 nal, partly hidden by the dorsal margin. — Obs. This genus 

 includes the Yenerirupes of Lamarck, and several species of his 

 Veneres, they are found in the sand on the shores of temperate 

 and tropical climates. See Monogram in Sowerby's Thesaurus 

 Conchyliorum, pi. 13, 14 ; and our figure of P. textile, pi. vi. 

 fig. 120. 



PULMONOBEANCHIATA. Bl. The first order of the first 

 section of Paracephalophora monoica, contaiaing the families 

 Limnacea, Auriculacea, and Limacinea. 



PULYINITES. Defr. (Pulvinus, a cushion.) Fam. Malleacea, 

 Lam. — Descr. Sub-equivalve, inequilateral, compressed, thin, 

 slightly gaping posteriorly ; one valve flat, the other rather con- 

 cave ; hinge linear, short, divided into perpendicular grooves ; 

 muscular impressions two, one sub-central, the other above it, 

 nearer the hinge. — Obs. This fossil shell is imperfectly known, 



. . and it is difficult to give a sufficient reason for separating it 

 from Perna. It comes from the Baculite limestone of Nor- 

 mandy. PL X. fig. 170, P. Adansonii. 



PUNCTATED. {Punctatus, spotted or dotted.) Por example, 

 see Conus Nussatella. Pig. 460. 



JWNCTICULIS. Sw. A sub-genus of " Coronaxis," Sw. 

 (Conus) described in Swainson's Malacology, p. 311. 



PUNCTTJEELLA. Lowe. Cemoeia, Leach. 



PUPA. Auct. Fam. Colimacea, Lam. ; Limacinea, Bl. — Descr. 

 Cylindrical, generally ribbed ; spire long, obtuse, composed of 

 numerous slowly increasing whorls; aperture sub-quadrate, 

 rounded anteriorly, entire ; outer lip thickened ; columella 

 plated. — Obs. This genus is composed of land shells very 

 variable in form, differing from Bulinus in the numerous slowly 

 increasing whorls of the spire, and in the pHcse on the columella, 

 and from Clausilia in the want of a clausium. Britain, Southern 

 Europe, East and West Indies, Mexico, &c. P. Uva. PI xiv, 

 fig. 291. 



PUPELLA. Sw. A sub-genus of Clausilia. Lard. Cyclop. 

 Malac. p. 334. 



