]J E N T A L I U M. 



Species 45. (Mus. Brit.) 



J")E>,-r.M,RTM INTEItCALATUM. Dl'll. llsU'l alhidi'l, folid'i, 



prop'e apicem costis paucis, verms medium et infrd, 

 aliis intercalatis hupieatn ; valide arcuatd, rapide 

 rrescenti, ad apertumm tatiuscula. 



The ixsedted Destalium. Slu-11 whitish, solid, fiuted 

 with few ribs near the ajiex and with others inter- 

 vening towards the middle and below ; much 

 arched, rapidly increasing, rather broad at the 

 aperture. 



(J„ri.r,. ? MS. in Brit. Mus. 



Hah. Hong Kong. 



The ribs are few and angular at the apex, as in D. 

 pievdonfj: iijonnm, and a little way down become more 

 numerous l:>y the intercalation of intermediates. 



The j'l'ititowED Dentaliu.m. Shell pale fulvous, narrow, 

 strongly arched, solid, slowly increasing, unequally 

 ridged with ribs, more distant at the sides, and 

 deep furrows; iipcrtiiii- Miiall. 



Gould ? MS. in Urit. Mus. 



Ilah. Hong Kong. 

 I The ribs are closer on the tlor.sal and ventral areas 

 i than at tlie sides. 



Species 4G. (Mus. Hanley.) 



Dentai.ium (iUADRAPiCALE. Dl'll. testa alhd, solidi'i, 

 i-cipidc crescenti, prope apicem costis quatuor 

 aiiffidatd, medio iisgiie ad marginem costellis nin/ie- 

 i-nsis striata, aperhird oblique ovatd. 



The sqi-ar' -topped Dentaliuji. Shell white, solid, 

 rapidly increasing, angidated near the apex with 

 tour ribs, striated from the middle to the aperture 

 with niuuerous riblets ; aperture obliquely ovate. 



Hanlet. Sowerby's Thesaurus Conchylionun, Denta- 

 lium, Sp. 4f;, f CI. 



Hub. Cochin, Malabar. 



Species 47. (Mus. Brit.) 



TALIUM l'oi;CATL-M. Den. tcstd pal/idr fulcd, an- 

 'ji't^td, va/ide urciifitd, mlidd, leiile crescenti, 

 iucBqualiter costis ad hdent maijis distantihiis 

 liraid, interstitiisqiii profhiidin : aperlurd jiarvn. 



I 



Species 48. (Mus. MacAndrew.) 

 i Dentalium minutum. Den. testa minutd, tenui, atbd, 

 semipeUucidd, Uevigatd, valide arcuatd, lente cres- 

 centi , apice truncato, hilobato. 

 TuE MINUTE Dentahum. Shell very small, thin, white, 

 semipellucid, smooth, strongly curved, slowly 

 increasing ; apex truncated, bilobed. 



H. Adams. ? MS. Brit. Mus. 



Hab. Gulf of Suez. Collected by R. Andrews, Esq. 



Much resembling Dentalium lobatum, Sowb., but 

 with the apex divided into two instead of four lobes. 



Species 40. (Mus. Brit.) 



Dentalium hvalinum. Den. testa angiistd,politd, alba, 

 pellucidd, mediocriter arcuatd, gradatim crescenti ; 

 apice ad maryinem dorsalem Jissurd subelongatd 

 inciM, ad maryinem veutralem breviter Jissurato, 

 laterum margiiiibus lobatis rotundis. 



The hyaline Dentalium. Shell narrow, polished, 

 white, pellucid, moderately arched, gradually 

 increa.sing ; apex incised at the dorsal margin 

 witli ;i rather elongated fissure, shortly fissured at 

 the ventral margin, margins of the sides lobed, 

 rounded. 



Leach ? MS. Brit. Mus. 



Hab. ? 



November, 187 



