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Show 1873.] MR. G. B. SOWERBY ON FIVE N E W CONES. 145 The lower jaw is narrow in front, gradually becoming wider behind, with a distinct gonyx at the end of the symphysis. The lower jaws of the two Ziphioid Whales figured by Dr. Hector have only a tooth at the front end, instead of a tooth at the front and a little further behind on the side of the jaw, as is usual in Berardius. Perhaps this depends on age. The having only two teeth quite in front of the lower jaw is the character of Epiodon ; but that has a subcylindrical tooth, and Dr. Hector's animals both have compressed triangular teeth like Berardius, as figured in his plates; so that if they are not Berardii they belong to a new genus. Mesoplodon longirostris of Krefft, of a skeleton of which in the Museum of Sydney he sent me a very beautiful photograph, appears to be either a Berardius hectori or a new species. The photograph does not show any teeth. The beak of the Australian specimen appears to be nearly twice as long as the head, whereas the beak figured by Dr. Hector is only a little more than once and a half as long as the head*. 7. Descriptions of five new Cones. By G. B. SOWERBY, F.L.S. [Received December 4, 1872.] (Plate XV.) 1. CONUS FERGUSONI. (Plate XV. fig. 1.) C. testa maxima, ponderosa, alba, spiraliter leviter substriata, sordide fusca crassa rugata induta, ad latera infra medium subcompressa ; spira subplanulata, latissima, vix elevata, apice paulo exserto; anfractibus haud numerosis, ad spiram de-pressis, ad suturam irregulariter undatis, inter suturam et angulum obscure unicostatis ; angulo obtuso. The only shell having any resemblance to this species is Conus ponderosus, which, however, is much smaller and broader, and which, in fact, has very little relation to it. Several specimens have been collected at Panama by Mr. Ferguson. 2. CONUS TENUISULCATUS. (Plate XV. fig. 2.) C. testa parva obesa, breviturbinata, supra medium bullata, antice angustata, spiraliter tenuiter striata, versus terminum sulcata, pallidissime fusco-subccerulea, fulvo variegata et maculis niveis fioccata, fulvo maculata, linearum fuscarum baltea maculis ni-vosis interrupta prope medium, et altera infra, prope terminum, fasciata; spira lata, obtuse angulata, ad angulum nodulis subro-tundis interpunctatis coronata; apice rubro; apertura intus violacea. The neat bands, consisting of linear fasciculi, and the snowy flakes * Drs. Hector and Gray have given a list of other New-Zealand species of Cetacea since observed. (See Ann. & Mag. Nat. Hist. 1873, vol. xi. p. 104.) PROC. ZOOL. Soc-1873, No. X. 10 |