880 



numerous, and ventricose. Mr. Metcalfe's collection. Locality 

 unknown. 



138. Certthium pulchellum (pi. clxxxiv. f. 239), C. B. 

 Adams, Shells of Jamaica. 



Cerith. testa minuta, pupfeformi, alba ; anfractibus superne ele- 

 vatis, costellatis, inferne prope suturam carina unica monilifera, 

 rubra; apertura magna; columella tortuosa. 



The whorls of this pretty little Jamaican shell are fluted above, 

 elevated and rounded, and near the suture circled by a beaded 

 red line. Mr. Cuming's collection. 



139. Cerithium punctatum (pi. clxxxiv. f. 240), Linn. 

 (Murex). M. subulatus, Montagu, Supp. p. 115, t. 30, f. 20; 

 non C. subulatum, Lam. C. ? Emersoni, C. B. Adams, Shells of 

 Jamaica. 



Cerith. testa pyramidali, basi truncata, fulva vel fusco fasciata ; 

 anfractibus rectis, costis distanter tuberculatis, duabus magnis, 

 una parva intermedia cinctis ; apertura subtrigona ; columella 

 tortuosa. 



A pyramidal brown or brown-banded Jamaican shell, showing 

 on each whorl two large spiral ribs, with rounded ribs at regular 

 distances, and one small intermediate rib. The base is truncated, 

 and the aperture trigonal. 



140. Cerithium terebellum (pi. clxxxiv. f. 241), C. B. 

 Adams, Shells of Jamaica. 



Cerith. testa elongata, pyramidali, fulva; anfractibus spiraliter 

 tricostatis, interstitiis latis crenulatis, ultimo truncate; apertura 

 subtrigona. 



This Jamaican species is pyramidal, brown, with three smooth 

 spiral ribs seen in each whorl, with wider crenulated interstices. 



141. Cerithium trilineatum (pi. clxxxiv. f. 242, 243), 

 PkiL Enum. Sic. v. ii. p. 163. 



Cerith. testa C. terehello simili, sed medio subinflato, interstitiis 

 rubro lineatis. 



This Mediterranean species differs from C. terehellum in being 

 less pyramidal, the central part being slightly swelled ; the inter- 

 stices constitute reddish dark lines. 



142. Cerithium cereum (pi. clxxxiv. f. 244, 245), Nobis. 

 Cerith. testa alba, C. terehello simili, sed basi rotunda, costis 



spiralibus latioribus, interstitiis angustis, incisis. 



