224 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 54 



Jumala Friele, N. Ttl. Exp., vol. 1, 18S2, p. 6. Type, Fxisus turtoni Bean, 

 Ann. Mag. Nat. Hist., Nov. 1893, olim. — Dautzenbebg and Fischer, Res 

 Camp. Scientifiques de Monaco, livr, 37, 1912, p. 62. 



Ukko Friele, in Norman, Ann. Mag. Nat. Hist., ser. 6, vol. 2. 1893, p. 352. — 

 Friele, Moll. Nordseefahrt Michael Sars, 1902, p. 6. 



Shell dextral, large, solid, the spire usually longer than the aperture 

 the sculpture very variable but usually strong ; the periostracum thin,^ 

 dehiscent ; the nucleus swollen, with several hardly increasing whorls 

 forming a subcylindrical tip to the spire in most cases; aperture of 

 moderate size, the outer lip slightly expanded and hardly thickened ; 

 pillar smooth, short, callous; canal short, wide, hardly recurved; 

 operculum smaller than the aperture, subovate with apical nucleus; 

 radula peculiar, with an edentate rhachidian plate,- the laterals 

 formed by single strong cusps with the tip incurved and two or more 

 small blunt denticles on the inner edge near the middle. The ovi- 

 capsules are pouch-shaped, pedunculate, attached by the edge of the 

 disk and opening at the upper edge, with few embryos. 



None of the other groups here designated, except 3/ohnia, show 

 such variation as this one in types of sculpture among the species; 

 ranging from smooth to strongly axially ribbed, strongly spirally 

 ridged, or finely striated. 



The name Ukko was substituted for Jumala by the author, because 

 it was found that the latter is the name by which the Christian Lapps 

 signify the Deity. Both names are antedated by Beringius. 



Genus LIOMESUS Stimpson. 



Liomesus Stimpson, Canadian Naturalist, new ser., Oct. 1865, p. 34. Type, 



Buccinum dalei J. Sowerby. 

 Buccinopsis Jeffreys, British Conch., vol. 4, 1867, p. 297 {B. dalei J. 



Sowerby) ; Brit. Assoc. Adv. Sci. Rep. for 1868, p. 244; (not of Conrad, 



Emory's Rep. Mexican Boundary, vol. 1, p. 158, pi. 13, figs. 4a-4b. 



1857). — KoBELT, Conch. Cab., ed. 2; Buccinum, p. 99, 1883. 

 Liomesus Habmer, Brit. Pliocene Moll., p. 115, 1914. 



Shell of moderate size, bucciniform, the nucleus minute, with a 

 very short twisted pillar, the outer lip thickened but not reflected; 

 pillar and body smooth ; the periostracum conspicuous, often villous ; 

 the operculum with apical nucleus ; the rhachidian plate edentulous, 

 the lateral teeth thorn-shaped, simple, their apices incurved without- 

 accessory denticles; the ovicapsules like those of Beringius but 

 smaller. 



The typical species is a Crag fossil of England, but it has long been 

 confused with a totally distinct recent form from the Doggerbank, 

 the earliest specific name for which is Buccinum ovum Turton, 1825. 

 A later name is Tritonium ebumeum M. Sars, 1849. The recent 

 species of Bering Sea, like the British Pliocene fossils, are solid 

 heavy shells, while the recent European species is thin and delicate. 

 The radula is very long. 



