GASTEROPODA. 247 
coloured, faintly tinted violet ; tentacles very large, the eyes large and 
nearest the tips. 
Obtained at the Feejee Islands. 
Figure 306, foot of the animal, with an outline of the shell. 
RicinvLA TUBERCULATA (BLatNnvILLE), Nouv. Ann. du Mus., plo; 
f.3. Reerve; Conch. Icon., pl. 2, f. 11. 
ANIMAL deep grass-green, with the mantle, locomotive disk, tenta- 
cles and siphon light sea-green finely dotted with white; foot narrow, 
elongated, slightly auriculate in front, with a nearly colourless longi- 
tudinal furrow ; eyes near the upper third of the tentacles, hardly per- 
ceptible, above which the tentacles are colourless; siphon somewhat 
dilated at extremity. In motion, the lateral halves of the disk seemed 
to be advanced alternately. 
Found abundantly at Honden Island and Clermont Tonnere, Pau- 
motu Islands. [s. P. c. ] 
RicinvLA HORRIDA (Lamarck), Anim. sans Vert., x. 47. REEVE; 
Conch. Icon., pl. 1, f. 3. 
The animal of a variety common at Clermont Tonnere, differs a 
little from that figured in the Voyage of the Astrolabe. The foot is 
pale green, passing into yellowish anteriorly, sprinkled with white 
dots, and deep grass-green at the sides; edge apparently crenulate. 
Tentacles white, except a ring of brown above the eyes; siphon dull 
green, mottled purple; mantle purple, mottled white; edges sinuous. 
Operculum dark chestnut-colour, projecting a little beyond the foot. 
(ee 
RicinuLA ARACHNOIDES (Lamarck), Anim. sans Vert., x. 49. 
REEVE; Conch. Icon., f. 5. 
ANIMAL with a mottled edging of deep grass-green, nearly vittate at 
