C E R I T ri I U M 



Plate XIV. 



Species 93. 



Cerithium FERUUGINEU5I. Cerith.testd pctnd, brevius- 

 cul/i, sabpupafornn, fused, longitudinaliter plicatd; 

 unfractihus pauch, seriehus Irihiis tiiberctilornm einctis, 

 (/tbemtlix ovalibus nuji'esceiitibiis ; aperturd subovali, 

 labro iacrassato, intiis creualo, columella brevissimd, 

 cmiali brevi, aperto. 



The rusty CERiTinnM. Shell small, rather short, rather 

 pupeeform, brown, longitudinally plicated ; whorls 

 few, encircled by three rows of tubercles, tubercles 

 oval, blackish ; aperture rather oval, outer lip thick- 

 ened, crenulated within, columella very short, canal 

 short, open. 



Say, Amer. Conch, pi. 49. f. 9. 



Cerithium variabile, C. B. Adams? 

 Curilhium versicolor, C. B. Adams ? 



Hab. Jamaica. 



This species includes many varieties in colouring, among 

 which the dark-brown one figured is the most prevalent. 



Species 93. 



Cerithium interstriatum. Cerith. iestd ohlongd, sub- 

 cyliudraced, albidd, fulco pallidi variegatd, alternatim 

 cosluUs ffraiiosis, et lineis ekvatis lavibus, spiraliter 

 clncld ; anfraclibus rectluscuUs ; aperturd parvd, sub- 

 quadratd, labro expauso, extus laqueato, coluvidld rec- 

 tiuscnld, canali hrevi. 



The interstriated Cerithium. Shell oblong, rather 

 cylindrical, whitish, variegated with pale yellowish- 

 brown, spirally girt with small granular ribs, alter- 

 nating with elevated smooth lines ; whorls rather 

 straight ; aperture small, rather square, outer lip ex- 

 panded, fluted outside, columella rather straight, canal 

 short. 



SowEUBY, Thes, Conch. Cerithium, sp. 123. f. 316. 



Eab. ? 



This pretty little specimen is very remarkable in its 

 sculpture, which consists of alternate rows of beads, and 

 threadlike smooth lines. 



Species 94. 



Cerithium clavis. Oeriili. Iestd elonyald, subcylindra- 

 ced, alba, fulvo pallidissime fasciaiim suffusd ; anfrac- 

 tibus numerosis, recliuseulis, seriebus tribm tiibercu- 

 lortim einctis, tuberculis acutls, magnis ; aperturd 

 parvd, labro valide expanso, extus laqueato, columelld 

 elongatd, rectiusculd. 



The key Cerithium. Shell long, subcyliudrical, white, 

 suffused with very plain brown ; whorls numerous, 

 rather straight, girt with three rows of sharp, large 

 tubercles ; aperture small, outer lip much expanded, 

 fluted outside, columella elongated, rather straight. 



SOWEKBY. 

 Ilab. ? 



At first sight this shell resembles the C. interstriatum 

 (Sp. 93), having a rather similar clavate form, result- 

 ing from the expansion of the outer lip ; but the sculpture 

 consists of three rows of large, sharp tubercles. 



Species 95. 



Cerithium rostratum. Cerith. tesld eleganter pyrami- 

 dald, tenui, albd, longitudinaUter plicatd, spiraliter 

 costald, inter castas Uneatim punctatd, irregidariter 

 varicosd ; anfraclibus numerosis, plicis longitudinalibus 

 subrotundis ; aperturd subovali, labro expanso, extus 

 laqueato, canali elongato, recurvo, angusto, plerumque 

 nigrescente. 



The beaked Cerithium. Shell elegantly pyramidal, 

 thin, white, longitudinally plicated, spirally ribbed, 

 between the ribs spotted in lines, irregularly varicose ; 

 whorls numerous, longitudinal, plaits rather round ; 

 aperture rather oval, outer lip expanded, fluted with- 

 out, canal elongated, recurved, narrow, generally 

 tipped with black. 



Sowerby, Thes. Conch. Cerithium, sp. 50. f. 104. 

 Cerithinvi gracile. Pease. 



Ilab. Philippines, Cuming. Sandwich Islands, Pease. 



This elegantly-tapering shell is remarkable for the pro- 

 duced, straight-truncated canal, which, in most specimens, 

 is tipped witii black. 



December, 1SC5. 



