1873.] MR. G. B. SOWERBY ON FIVE NEW 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 Be- 

 rardius. 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 com- 

 pressed 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, epi- 



dermide sordide fusca crassa rugata induta, ad latera infra 



medium subcompressa ; spira subplanuluta, latissima, vix elevata, 



apice paulo exserto ; anfractibus hand 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-subcoerulea, fulvo variegata et maculis niveis 

 floccata, 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 



