246 Mr. W. King on some Shells and other Invertebrate Forms 



that of F. antiquus; and the operculum is large and pyriform. 

 My largest specimen measures 5 inches in length and 2§ths in 

 breadth, and has eight whorls. It is found at the same depth 

 and in the same places as Fusus norvegicus. 



I am strongly inclined to think that the Uddevalla fossil figured 

 in Hisinger's l Lethsea Suecica' (tab. 37. 2nd Supplement) under 

 the name of Buccinum anglicanum ?, if not a variety of Fusus Tur- 

 toni, is a nearly allied species. If its spire were a little more 

 elongated and the canal a trifle more produced, Hisinger's shell 

 would closely resemble the latter : for a certainty it is not a 

 Buccinum } as it wants the well- developed siphonal ridge of this 

 genus. In the form of the lower part of the columella, the Ud- 

 devalla fossil offers a striking resemblance to Fusus Turtoni. 



^ Fusus islandicus, Martini. 



There are two varieties of this shell on our coasts : one from 

 shallow water and similar to the specimens represented in Capt. 

 Brown's ' British Conchology/ 2nd edit. pi. 6. figs. 7 and 9, and 

 Donovan's ' British Shells/ vol. ii. pi. 38, being thick, long and 

 narrow ; and the other, which is from deep water, is thinner, 

 shorter, and more tumid. The spiral lines are stronger, and more 

 apart from each other on the elongated than on the tumid variety, 

 and the canal is generally more twisted on the latter. The tumid 

 variety appears to be intermediate in many respects to the elon- 

 gated form, and the Fusus ventricosus of Gray found on the banks 

 of Newfoundland. 



The shell represented in Brown's f British Conchology/ 2nd 

 ed. pi. 6. figs. 11 and 12, appears to belong to the tumid variety, 

 but none of my specimens are so short in the canal. My largest 

 specimen of the tumid variety is 3|- inches in length and \\ in 

 breadth, and has nine whorls. 



Fusus berniciensis, nobis*. 

 Specific Character. — Length rather more than twice the breadth 

 (the largest specimen I have got, and which appears to be a 

 full-grown one, is 3^ inches long and 1^ broad, and has eight 

 whorls). Spire (measuring from the apex to the suture at its 

 junction with the outer lip) nearly half the length of the shell. 

 Aperture, including the canal, pyriform. Siphon evenly round- 

 ed, slightly twisted, and tapering towards its termination ; its 

 greatest breadth half that of the aperture, and its length five- 

 thirds of its breadth : columellar side not much thicker than 

 the opposite one. Outer lip rather thickened, somewhat re- 

 flected and slightly sulcated, — the sulcations corresponding to 



* From Bernicia, the name of the kingdom founded by Ida, and embra- 

 cing the present counties of Northumberland, Durham, &c. 



