48 



tenui, inter costas hirsutd, sparsim indutd ; radiatim costatd, costis 

 duabus vel tribus et triginta, planulatis, confertis, guadriliratis ; 

 umbonibus parvis, distantibus ; ligamenti ared brevi, latd, declivi. 

 Conch. Icon. Arca, pi. 10. f. 68. 



Hab. Harbour of Mozambiąue (found in a mass of white coral on 

 the reefs at low water, spring tide) ; Hankey. 



I close this division of the genus \vith a new species, ■vvhich ex- 

 hibits a peculiarity in the structure of the ribs of great novelty and 

 interest, each of them being composed of four distinctly separated 

 ridges. 



I have great pleasure in naming this important species after the 

 gentleman to whom I am indebted for it, Lieut. Hankey, R.N., a 

 zealous conchologist, whose researches on the coast of Africa have 

 greatly contributed to science. 



The following description of some new species of Columbella, in 

 the collection of H. Cuming, Esq., by Mr. G. B. Sowerby, was then 

 read ; — 



Columbella Duclosiana, nob., Thes. Conch. part4. pi. 36. f. 15, 

 16. Col. testd ovatd, utrincue acuminatd, longitudinaliter costel- 

 latd, saturate fuscd, zonis binis pallidioribus ; spird acvminatd, 

 anfractibus 5, costatis, ultimd magnd parte ventrali longitudinaliter 

 costatd, interstitiis costarum transversim striatis, dorsali Icevigatd, 

 antice transversim striatd ; aperturd latiusculd, flexuosd, nigri- 

 cante ; labio externo crasso, intiis denticulis 8-9, posticis majori- 

 bus ; interno postice callifero ; canali breviter acuminato, subre- 

 flexo ; epidermide crassiusculd. 



Epidermis coarse and rough. Found under stones on the coast of 

 Malacca by H. Cuming ; also from Java. 



Columbella chlorostoma, nob., Thes. Conch. pi. 36. f. 17, 18. 

 Col. testd ovatd, longitudinaliter costatd, Icevi, albd, nigro-macU' 

 latd; spird mediocri, anfractibus 5, subventricosis, costatis, ultimo 

 antice transversim striato, parte dorsali anticd costis obsoletis ; 

 aperturd oblongd, latiusculd, peritremate fulvescente ; labio externo 

 postice angulato. 

 A single specimen is in the collection of M. Petit de la Saussaye, 

 vvhich he has obligingly communicated. It is not Buccinum chloro- 

 stoma of Wood. 



Columbella rudis, nob., Thes. Conch. pi. 36. f. 33, 34, 35. Col. 

 testd oblongd, rudi, plerunigue albidd, punctis strigisque irregu- 

 lariter ornatd; spird longiusculd, acutiusculd, anfractibus 7, trans- 

 versim crasse granuloso striatis, postice anguliferis, ultimo magno ; 

 aperturd subflexuosd, albd, peritremate postice angulifero ; canali 

 subreflexd. 



From Nevis : in Mr. Cuming's and other coUections. 



Columbella pcecila, nob., Thes. Conch. pi. 37. f. 51, 52. Col. 

 testd ovatd, utrincue subacuminatd, transversim striatd, fulvd, 

 lineis 2-3 transversis castaneis, maculisgue albis variegatd ; an- 



