878 



More elongated and pupseform than C. costatum, with the three 

 last whorls gradually contracted. Philippines, //. Cuming. 



1 d. Numerous short whorls, short canal. — Genus Cerithopsis, 

 Forbes and Hanley. 



128. Cerithium tuberculare (pi. clxxxiv. f. 222), Mon- 

 tagu, Test. Brit. p. 270. Cerithopsis, Forbes and Hanley. 



Cerith. testa C. reticulate- simili, sed anfractibus vix ventricosis, 

 canali valido. 



It is not easy to find characters in this British shell to distin- 

 guish it from C. reticulatum, even specifically, but the whorls are 

 less ventricose and the reticulation more fine. The canal is more 

 decided. 



129. Cerithium Algerianum (pi. clxxxiv. f. 230, 231), 

 Nobis. 



Cerith. testa pupaeformi, alba vel fulvfi, triseriatim tuberculata ; 

 anfractibus distinctis ; apertura ovali. 



The whorls are straighter, and the tubercles less close than in 

 C. tuberculare. Algiers, Mr. Hanley. 



130. Cerithium reticulatum (pi. clxxxiv. f. 228, 229), 

 Mont., Brit. Sp. p. 272. Terebra reticulata, E. M. p. 346. 



Cerith. testa elongata, costis tribus spiralibus et plicis longitu- 

 dinalis nodosis reticulata, fusca vel alba ; anfractibus ventricosis. 



Small, brown, reticulated with longitudinal plica3, crossed by 

 three spiral ribs. Great Britain and Mediterranean. 



131. Cerithium lima (pi. clxxxiv. f. 232), Brug., Lam. 

 An. s. vert. no. 35. 



Cerith. testa elongata, rufa, varicosa; anfractibus numerosis, 

 plicatis ad suturam elevatis, lineis acute tuberculiferis cinctis ; 

 apertura parva, simplici. 



Elongated, brown, red-lined, with plicaj crossed by sharply tu- 

 berculated spiral ribs. The whorls are shouldered at the suture. 

 The aperture is small and simple. Mediterranean. 



132. Cerithium elongatum (pi. clxxxiv. f. 233, 231), Nobis. 



Cerith. testa attenuata, granulosa; anfractibus numerosis, ventri- 

 cosis, obliquis ; apertura parva, simplici. 



Resembling C. lima, but more attenuated, with the grains 

 coarser, and the whorls ventricose and more oblique. Mediterra- 

 nean, Hanley. Australia, Strange. 



