GASTEROPODA. 23 



Trophon Sabini, Hancock. Supplement, Tab. II, fig. 15. 



Locality. Upper Glacial, Bridlington. 



A species is introduced into Dr. Woodward's list of Bridlington fossils under this name, 

 but to winch no authority is attached. I presume the shell belonging to Mr. Leckenby 

 figured here was the one intended. It is given as a distinct species by Dr. Woodward, and I 

 have followed him. This is the shell, I suppose, referred to by E. Forbes in ' Mem. Geol. 

 Surv./ p. 426, No. 119, 1846, from the Irish Drift, as well as from Bridlington, but he has 

 given to his fossil the name of T. Sabini, Gray. Buc. Sabinii, Gray, is another species. 

 The present shell seems more slender than T. Lslandicus, with rather a deeper suture 

 and a smaller apex, and it is, I imagine, the same as a shell figured by Gould, * Invert. 

 Massach./ p. 284, fig. 199, called F. Islandicus, var. pyymaus. 



Trophon altus, S. Wood. Crag. Moll., vol. i, p. 47, Tab. VI, fig. 13; and Supplement, 



Tab. II, fig. 17, a, b. 



Localities. Red Crag, Butley. Fluvio-marine Crag, Bramerton. 



I have here given representations of two specimens which, I believe, belong to the 

 fossil I previously figured and described, with the above name, in ' Crag Moll.' 

 One is an elongated variety, with obsolete costae, which I found in the Red Crag 

 at Butley ; the other is a shorter and more inflated shell, without ribs or stria?, found by 

 Mr. A. Bell also at Butley. The nearest approach to this species, as pointed out by Mr. 

 A. Bell, is a specimen in the British Museum from Newfoundland, named F. cretaceus, 

 Reeve, and Mr. Bell has sent to me for examination some fossil specimens he has received 

 from Dr. Dawson with the locality of " Riviere du Loup," which appear to be identical 

 with the Crag shell, differing from F. cretaceus, in having an obtuse or mammillated 

 apex, and attached to them is the name of Buccinofusus Kroyeri. This Canadian fossil is, I 

 think, the same as the Crag shell, and it appears to present the same difference from 

 cretaceus of Reeve (the one having an obtuse apex, while the other is pointed) as is 

 considered specifically to distinguish F. Islandicus from F. propinquus. I think the 

 Canadian fossil is not the Kroyeri of Moller. 



This Crag fossil was originally called Murex pullus by S. Woodward, and I would have 

 adopted the specific name, but it is neither the pullus of Linne nor the pullus of Pennant, 

 and, in order to avoid confusion, I have thought it best to give it a new name. 



