216 OSCANIUS. 
bronzed color. These may perhaps be features of immaturity. It 
occurs commonly at Palermo. 
O. pitaTipEs H. & A. Adams. PI. 54, figs. 4, 5. 
Pale red, with deep red-brown depressed lines, and light pink 
tubercles surrounded by dark red-brown zones; the foot is flesh- 
colored, with faint concentric strie (H. & A. Ad.). 
Habitat unknown. 
Oscanius dilatipes Aps., Gen. Rec. Moll, ii, p. 39, pl. 60, f. 5, 5a. 
Described without locality from a spirit specimen in Cuming’s 
collection. Seems near O. tuberculatus Meckel. 
O. RETICULATUS Rang. PI. 49, figs. 36, 37, 38. 
Body oval-oblong, convex, smooth, obtuse in front, subacute be- 
hind. Flesh colored, the shade deeper on the mantle, where there 
are, especially toward the borders, numerous rounded, slightly 
nebulous black spots of varying sizes, and a reticulation of fine white 
irregular lines. | Mantle with a median sinus in front; eyes at the 
posterior bases of the tentacles, which are brown, long, swollen at 
the distal third, and regularly striated transversely. Foot large, 
oval, pale. Gill transparent yellow. Length 73 cm. 
Shell small, oblong quadrangular, concave below, convex above; 
right and anterior borders thin, left border thickened and terminat- 
ing in a small, distinct spiral of 13 whorls (fig. 37); regularly stri- 
ated, of corneous texture, reddish below, bluish above. Length 7 
mill. 
“ Tle du Prieur, dans la baie de Saint-Antoine” (Rang). 
Pleurobranchus reticulatus Rana, Mag. de Zool., 1832, Classe v, 
pl: 
I do not known the locality given by Rang. Perhaps it is San 
Antonio Bay, Prince’s Island, W. Africa, or San Antonio de Praia, 
Annobom Island. 
Kelaart has very briefly described a “ P. reticulatus?, Gmel.” 
from Trincomalee. See Ann. Mag. N. H., (3), ili, p. 495. 
O. MARINUS Forskal. PI. 48, figs. 32, 33. 
Color dark violet, with two (or three) interrupted longitudinal 
series of entirely white, lunate curved, narrow lines on each side of 
the back, each series consisting of 4 or 5 such lines. The mouth 
can be protruded trunk or snout like, the snout being yellowish. 
Over the mouth there is an expansion of the integument, or labial 
