OF SOUTHERN INDIA. 317 
5a. Spirocrypta, Gabb, 1864, a sub-genus proposed for a cretaceous species 
from California (vide infra n. 12). 
6. Galericulus, Seeley, 1861, proposed for a cretaceous species {vide infra n. 8]. 
Gray separates Crep. solida, Hinds, C. rostriformis, Gould, and others under 
the name of Garnotia, and several other names, as Hrg@a, Adams, Crepipatelia, 
Less., Calypeopsis, Less., etc., are quoted as sub-genera by H. and A. Adams, 
Chenu and other conchologists. 
The Cazyprerp are largely represented among living shells; they are chiefly 
inhabitants of the warmer eastern and American waters, although several of them 
are also found in temperate zones, as in the Mediterranean sea. Some 120 species 
are known recent, and about the same number and an additional half have been 
described from tertiary deposits. In the older formations they are less numerous, 
their thin shells not being so well adapted to remain in good preservation as species 
of the Trocuipz. Of cretaceous species the following are reported :— 
1. Galerus excentricus, Gabb (Pal. Calif., 1864, I, p. 186, pl. 20, fig. 95, and pl. 29, fig. 232 ; 
Galeropsis id., Conrad, Smithson. Mise. Coll., 200, p. 11). Conrad refers this species like many 
others to the lower eocene, but my friend Gabb informs me that he is certain of the cretaceous 
age of those rocks. 
2-6. Lnfundibulum urgonense, P. and Camp., I. cretaceum, D’Orbigny, L. ciplyanum et tornacense 
Ryckholt, and J. supra-cretaceum, D’Orb., vide Pictet Mat. p. 1. Pal. Suisse, Foss. Ste. Croix, 3me. 
Ser., p. 693. 
7. Calyptrea sancte-crucis, Pictet and Campiche, loc. cit., p. 696, pl. 97, fig. 38. 
8. Galericulus altus, n. gen. and sp., Seeley, Ann. Mag. Nat. Hist. Ser. 3, Vol. VII, p. 292, 
pl. 2, fig. 19. This species is distinguished by two separate septa, the larger one originating 
below the incurved apex, and the smaller one at the base. Only the cast is as yet known; 
the upper surface of the shell, which has the form of a Helcion, not having been observed. 
9. Crepidula Gaultina, Buvignier (Pict, et Camp. Mat. p. 1. Pal. Suisse, Foss. Ste. Croix, 
3me. Ser., p. 693, pl. 97, figs. 3-4), 
10. Crepidula Cooksonia, Seeley (Ann. Mag,, loc. cit., p. 291, pl. 11, fig. 18,) from the 
Cambridge Greensand, 
ll. Calyptrea Grayana, Tate, 1865 (Quart. Jour, Geol. Soc., Lond., XXI, p. 38, pl. 3, fig. 8,) 
from the cretaceous deposits of Ireland. The internal structure of the shell has not been observed 
by the author ; its general form very much resembles that of Tectura and Helcion. 
12. Crepidula (Subg. Spirocrypta) pileum, Gabb, (Pal. Calif., 1864, I, p. 187, pl. 29, fig. 233). 
This newly proposed sub-genus ought to differ from Crepidula (and Crepipatella?) by a more 
distinctly spiral apex and by an oblique position of the internal plate, characters which it is very 
difficult to admit as generic distinctions in the fam. CaLyprripZ. Conrad (Check list Mise. Coll. 
Smithson. Inst., No. 200, p. 11,) refers this species to the lower. eocene beds which are considered 
by Gabb and other American geologists as being of cretaceous age; he besides quotes two other 
species, 
138-14 (?). Crypta prerupta and rostralis which, if actually from the same beds as the last 
named one, have to be added to the list of cretaceous fossils. 
15. Calypt. semiglobosa, Kichwald (Leth. Ross., XI; livr., 1867, p. 807), from the eretaceous 
beds near Osinoroo in Russia, is an Lnfundibulum. 
The Calyptrea cretacea, Miller (Petr. Aachener Kreide., 1851, II, p. 51, pl. 6, fig. 12,) is justly 
considered by Pictet as a doubtful species and rather belonging to Chama or Gryphea (not Neritopsis, 
for the inner lip would be concave about the centre, not conyex). I was not able to find this species 
41 
