SIPHO MINIMUS. 189 



Sipho latericeus (MoUer). Plate XX, figs. 10—12. 



1842. Fusus latericeus, Moller, lud. Moll. GrceuL, p. 15. 



1850. Tritoiimm mcarnatum, M. Sars, Njt Mag. Nat., p. 191. 



1878. Sipho latericeus, G. 0. Sars, Moll. Eeg. Arct. Norv., p. 276, pi. xv, fig. 8. 



1881. Neptunea latericea, Kobelt, Martini und Chemnitz, Conch. Cab., ed. 2, pt. iii (Purpuracese), 



p. 120, pi. xl, figs. 7, 8. 

 1882-1901. Neptunea (Sipho) latericea, Friele, Norske Nordh. Exj^ed. (Mollusca), pt. i, p. 17, pi. ii, 



figs. 16, 17, 1882 ; pt. iii, p. 105, 1901. 

 1899. Sipho {Tritonofusus) latericeus, Posselt, Medd. om G-riiul., vol. xxiii, p. 182. 

 1910. Sipho latericeus, Odhner, K. Sveusk. Vet. Akad. Handl., vol. vii, p. 14. 



f^pecific Characters. — Shell small, rather thin, fusiform, turreted; spire elongate, 

 gradually tapering ; apex blunt, not planorboid ; whorls 6 or 7, convex, the last 

 about half the total length ; ornamented by fine well-marked spiral striations, 

 and generally with longitudinal plications on the upper whorls, which become 

 fainter and sometimes disappear on the lower ones ; suture distinct ; mouth oval, 

 angulate above ; outer lip thin ; columella flexuous ; canal short, turning slightly to 

 the left. 



Bimensions. — L. 15 — 25 mm. B. 8 — 10 mm. 



Bistribution. — Recent-' Finmark, Spitzbergen, Iceland, Greenland, North 

 America, Gulf of St. Lawrence. 



Fossil: Waltonian Crag : Little Oakley (rare). Wexford. Shel- 

 lag (Isle of Man). Pleistocene: Carrickfergus, Belfast ; Moel Tryfan ; Bridlington. 



Pleistocene : Sweden — Uddevalla. 



Bemarls. — I have a specimen of this northern form from Oakley, quite perfect, 

 corresponding fairly well with some fossils in my collection from Uddevalla, and 

 somewhat less nearly with a Recent shell dredged at 100 fathoms in the Jokelfiord, 

 north of Tromso, which I have received from Dr. Nordgaard. The Crag fossil does 

 not show the longitudinal plications, nor do some of those from Uddevalla, more 

 nearly resembling the latter than the Recent form, in which the canal is somewhat 

 longer. There is a specimen of this species from Bridlington in the York Museum 

 and another at Jermyn Street, from the Isle of Man. 



Sipho latericeus was dredged by the Norwegian Expedition off the coasts of 

 Finmark and Spitzbergen between 20 and 649 fathoms. 



Sipho minimus, sp. nov. Plate XXIII, fig. 4. 



Specific Characters. — Shell minute, fragile, fusiform; spire elongate, regularly 

 tapering, ending in a small bulbous point; whorls 7, but slightly convex, the last 

 excavated, about two-thirds the total length ; spirally striated, the sculpture being 



