OCR Text |
Show 636 MR. G. B. SOWERBY, JUN., ON N E W SHELLS. [May 17, Compared with C. tereBellum, to which this species is allied, it is a smooth shell with a shorter spire. Having a single specimen of C. thomasi some years ago, I had some thought of describing it as a new species, but hesitated to do so on account of its proximity to C. tereBellum. Having now, however, seen several specimens, and compared them with a large series of C. tereBellum, I have no difficulty in making the distinction. In the collections of the late Mr. Thomas Lombe Taylor and Mr. Hopeley White there were specimens of the species above described under the name of C. pasti-naica (Lamarck)-an error caused by Lovell Reeve having figured and described under that name in the ' Conchologia Iconica' (Conus, fig. 257) a shell of somewhat similar appearance, but which has been shown by Mr. Edgar Smith to have been a worn specimen of C. virgo, now in the British Museum. It is not known what has become of the type of Lamarck's C. pastinaica ; but from his description it would seem to have no affinity whatever with Reeve's shell so named. The species which I have named in honour of M . Thomas of Breste is represented in his collection by the specimen which I have taken for the type. The other specimens which I have mentioned are smaller, and have rather more of a bluish or faint lilac tinge of colour. 2. C O N U S PREVOSTI, n. sp. (Plate LVI. fig. 3.) Testa elongato-cylindracea, la?vi, infra sulcata, alBida, aurantio oBscure fasciata, lineis numerosis minutis aurantiacis irregulariter undulatis et angulatis scripta ; spira elata, gradata; anfractus superne leviter concavi, striis duoBus spiraliter sculpti; anfr. superne angulatus, infra anyulum convexiusculus; apertura modiea, Basin versus aliquanto latior, fauce lutea. Long. 40, diam. 15 millim. HaB. New Caledonia. A beautiful and remarkable species, of an elongated form, and a style of marking that would bring it just within the confines of the "cylinder" or "textile" group. The orange lines are very fine, mostly running longitudinally, in some places parallel and zigzag, in others leaving triangular white spaces as in G. textile, and others of that group. The specimen forms part of the collection of M . Thomas of Brest; another specimen is in the collection of Dr. Prevost of Alengon. 3. C O N U S BOCKI, n. sp. (Plate LVI. fig. 7.) Testa turBinata,pallide lutea, luteo-fusco transversim mullifasciata, et longitudinaliter strigata, hie illic nigro fusco radiata; spira Breviuscula, albida,promiscue luteo strigata, ad apicem prominula anfractus superne planati, cancellati, ad angulum coronati ; anfr. ultimus superne tuberculis grandiBus coronatus, infra angulum la?vigatus, delude leviter granoso-costatus ; apertura alBa, medio-criter lata ; laBrum leviter arcuatum. Long. 60, diam. 32 millim. HaB. Amboyna (Carl Bock). |