Species of Conidsd and Tere"bndge. 227 



tudinalibus leviter arcuatis (in anir. ultimo 12-15 versus basim 

 attenuantibus) instructi, et sulco angusto, inter costas praecipue 

 conspicuo inaequaliter divisi, et lira angusta supra suturam sed 

 ei contigua cincti transversimque obscure (interdum obsolete) 

 striati ; anfr. ultimus circa pcripheriam sulcis 1-3 ornatus ; 

 apertura parva ; columella canalisque breves. 

 Long. 13 miU., diam. 3. 



Hah. Persian Gulf {Colonel Pelly). 



Tlie two or three spiral furrows, of which the upper one is 

 usually most conspicuous, around the periphery well define 

 this species ; and the liration which fills up the suture is also 

 remarkable. 



Terebra Grayi^ sp. no v. 



Terebra gracilis, Gray, Proc. Zool. Soc. 1834, p. 61 (name preoccupied 



for a fossil species). 

 Non T. gracilis, Reeve, fig. 131,= T. spectahilis, Hinds. 

 Non T. frigata, Hinds, Sowerby, i. pi. 44. f. 71. 



Testa subulata, nitens, pallide cinerea, ad apicem basimque anfract. 

 ultimi purpureo-fusco tincta ; anfractus 16, subplani (minima 

 convexi), costis longitudinalibus, distautibus, subacutis, leviter 

 arcuatis, circiter 11, superne leviter nodulosis (in anfract. ultimo 

 versus basim evanidis) instructi, et liuea spirali profunda posteriore 

 inaequaliter divisi, striisque spiralibus numerosis tenuibus inter 

 costas insculpti ; columella basi obliqua/fusco-purpurea. 



Long. 24 mill., diam. 4|. 



Hob. ? 



Much confusion has unfortunately hitherto surrounded this 

 species. Hinds associated with it a totally distinct species, 

 applying thereto the name frigata. Deshayes continued this 

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

 fell into a worse one himself ; 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 Reeve 

 (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. 

 Soc, no such confusion could have arisen. The distant ribs, 

 spiral striation, cinereous coloration, and purplish brown base 

 of the true T. gracilis are characters which in no way apply to 

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

 striation, and is quite differently coloured. 



Terebra {Myurella) fuscobasis, sp. nov. 



Testa parva, breviter subulata, nitida, alba, zona dilute fusca infra 

 suturam cincta, et anfract. ultimi basi fusca ; anfr. 10, primi 3 

 laeves, poHti, cseteri convexiusculi, superne paululum constricti, 



