Species of Comdoa and Terebridaj. 227 



tudinnHltus Icvitor arcuntis (in nnfr. ultimo 12-15 versus hnsim 

 uttenuantibus) instnicti, ct sulco angusto, inter costas i)ra)cii)uu 

 conspic'uo ina:qualiter divisi, ct lira august a supra suturam Bed 

 ci contigua cincti transvcrsimque obscure (iutordum obsolete) 

 striati ; anfr. ultimus circa poriphoriara sulcis 1-6 omatus ; 

 apcrlura parva ; columella canalisijue breves. 

 Long. l.'J mill., diani. .'3. 



Hah. rersiaii Gulf {Colonel Pdh/). 



The two or three spiral furrows, of wliich tlic upper one is 

 usually most conspicuous, around tlie periplicry well define 

 tliis s])ccics ; and the liration which fills up the suture is also 

 remarkable. 



Terebra Grayi^ sp. nov. 



Terehra {p-acilis, Gray, Proc. Zool. Soc. 1834, p. 61 (name preoccupied 



for a fossil species). 

 Non T. (/racilis, Reeve, fig. 131,= T'. spedubilis, Hinds. 

 Non T, fnijiitu, Iliuds, Soworbv, i. pi. 44. f. 71. 



Testa subulata, nitons, pallide cinerea, ad apieem basimqxio anfract. 

 ultimi purpureo-fiisco tincta ; anfractus IG, subjJani (minirae 

 convexi), costis longitudinali])us, distaiitibus, suhacutis, leviter 

 arcuatis, circiter 11, superuo levitcr nodulosis (in ani'raot. ultimo 

 versus basim evanidis) instructi, etlinca apirali profunda jiosterioro 

 inacqualiter divisi, striisque spiralibus numcrosis tenuibus inter 

 costas insculpti ; columeUa basi obliqua, fusco-purpurea. 



Long. 24 mill., diam. 4|. 



Hah. ? 



Much confusion has unfortunately hitherto surrounded this 

 species. Hinds associated with it a totally distinct species, 

 applying thereto the name fricjata. Deshaycs continued this 

 mistake ; and Reeve, imagining he was correcting the error, 

 fell into a worse one liimself ; for lie has figured from Dr. 

 Gray's collection a small specimen of spectabilis of Hinds 

 under the name of gracilis. The specimen figured by lieeve 

 (f. 131) was attached to a tablet in Dr. Gray's collection, in 

 company with the true type ; and thus, if Reeve had compared 

 the two shells with the original description in the Proc. Zool. 

 8oc., no such confusion could have arisen. The distant ribs, 

 s])iral striation, cinereous C(»loration, and ])urplish brown base 

 of the true T. (jracilis are characters which in no way api)ly to 

 Reeve's shell, which has numerous ribs (fourteen), no spiral 

 striation, and is quite differently coloured. 



Terebra [Myiirella) fuscdbasis^ sp. nov. 



Testa parva, brcviter subulata, nitida, alba, zona dilute fiisca infra 

 suturam cincta, ot anfract. ultimi liasi fusca ; anfr. 10, primi IJ 

 Iffives, politi, cactcri couvcxiusculi, supcrnc paululum constrict!, 



