of British Mollusca. 
67 
u Shell oval, thin, semitransparent, and glossy: sculpture , 
very numerous and regular fine spiral or revolving stride, 
which are closely punctured ; they are stronger at the base 
than at the crown : colour white : spire deeply sunken, and 
for the most part concealed in a small cavity in the centre of 
the crown ; but the bulb-shaped apex is visible at the bottom 
of the cavity : mouth semioblong, contracted above and ex- 
panding below : outer lip slightly raised above the crown and 
channelled, curved in the middle and at the base : inner lip 
inconspicuous : pillar straight on the upper half and incurved 
below. L. 0*2, B. 0*1.” 
Three specimens from ‘ Triton ’ exped., Stat. 13, lat. 50° 
6V N., long. 8° 18' W., 570 fathoms {Jeffreys) , and I have 
a small specimen (L. 0T) which I found in ooze from the same 
station. 
As far as the above description goes the shell might be a 
Tornatina ; but the figure represents a shell nearly allied in 
form to Scaphander and with sculpture somewhat like that of 
8 . punctostriatus. Compared with my smallest example of 
the latter species, less than 0*2 long, my little Cryptaxis 
differs in its more equal breadth throughout, the lip being 
more expanded below and the apex at the other extremity 
being broader, and the small 8 . punctostriatus shows no more 
sign of perforated apex than does the adult. I have likewise 
compared it with Cylichna insculpta , Totten, which shell is 
more broadly ovate and has the apex closed. 
Fam. 4. Bullidae. 
Genus 1. Bulla, Klein. 
45. Bulla utriculus , Brocchi. 
Var. a . oblonga ) Jeffreys. 
46. Bulla semilevis , Seguenza. 
Bulla semilevis , Seguenza, Form. terz. della Provincia di Reggio (Cala- 
briaj, 1879, p. 241, pi. xvi. tig. 5. 
Bulla semilevis, Jeffreys, Report ‘ Travailleur ’ Dredgings, Brit. Assoc. 
Rep. 1880, p. 10 (name only). 
Bulla (?) eburnea , Dali, Bull. Mus. Comp. Zool. ix. (1881), p. 98 ; ib. 
xviii. (1889), p. 55, pi. xvii. fig. 0: Bull. U. S. Nat. Mus. no. 37 
(1889), p. 88, pi. xvii. fig. G. 
Bulla Guernei, Dautzenberg, Result des Camp, scient. par Prince de 
Monaco, Contrib. a la Faune malacol. des Azores, 1889, p. 24, pi. i. 
tigs. 5 a-d. 
Off the south of Ireland, 1000 fathoms, c Flying Fox/ 
1889 [E. A . Smith). 
5 * 
