ZOOLOGY OF FERNANDO NORONHA. 
497 
Reeve describes this species as “ smooth along the summit, very 
closely finely striated on each side.” This is not at all accurate. 
The . central portion of the non-terminal valves has a defined 
elongate subtriangular space which is sculptured with minutely 
granular lines, and the sides are densely but rather more coarsely 
granulated. The figure (47) of the detail of sculpture of C. spi- 
culosa, Reeve, which I believe to be the same species, gives quite 
as good an idea of the ornamentation as figure 109. The outer 
margin of the mantle bears a fringe of the same glassy spicules as 
compose the tufts. 
42. Doris, sp. 
A single specimen was obtained, which appears to belong to the 
same species as an unnamed example in the British Museum from 
the West Indies. 
43. Aplysia, sp. 
An animal about an inch long is all that was found. It pro- 
bably is not full-grown. Ho attempt has been made to identify 
either this or the preceding, as both belong to difficult groups 
requiring special study. 
44. Siphonaria picta, var. ? # (Plate XXX. figs. 4-4 b.) 
Hab. Rio Janeiro ((V Orbigny). 
The specimens from Fernando Horonha are externally blackish 
with numerous white radiating cost*. The inner surface also is 
much darker than in the type specimens from Brazil. S. hispida, 
Gould, also from Rio Janeiro, appears to be the same species. 
S. lineolata , d’Orbigny, from Cuba, is a larger form, and the only 
species that appears to have been discovered in the West Indies. 
One or two species are known from Bermuda ( S . brunnea , 
Hanley) ; and Say has described a form from East Florida. 
45. Vends (Anaitis) paphia, Linne. 
Hab. West Indies and Cape Verd Islands (Brit. Mas.). 
46. Cardium subelongatum, Sowerby. 
Hab. St. Thomas, West Indies. 
47. Cardium medium, Linne. 
Hab. West Indies. 
* D’Orbigny, Yoy. Amer. Merid.’ vol. v. p. 469, pi. 56. ff. 7-11. 
