134 PHYLLAPLYSIA. 
figure, and sometimes they are interrupted. Examined with a glass 
of strong magnification, they are seen to be composed of a multitude 
of tiny blackish and brown specks. The spots on the front tentacles 
are smaller and more numerous than the illustration shows, and, 
moreover, are projecting, forming little warts. 
P. (?) pepREssA Cantraine. PI. 36, figs. 18, 14. 
Length 21 lines. Body long-ovate, subdepressed; green-buff, 
variegated with black; the sole wide, marginated, green marked 
with numerous oval gray spots. 
This species is distinguished by the depressed form, the wide, 
margined foot, the nearly square head, distinet from the trunk and 
carried on avery short neck. The pleuropodial lobes are very 
small. There are four tentacles, the front pair are larger, depressed 
and truncate at the ends; the hind pair are nearly cylindrical, slit 
as usual. The sides and back are greenish yellow finely vermiculate 
with black; buccal region and ends of the anterior tentacles yel- 
low ; posterior tentacles (rhinophores) the color of the body. The 
coloration of the foot is remarkable; the ground color of clear 
green is varied by numerous oval, gray spots. 
Ragusa Vecchia, Dalmatia. 
Aplysia depressa CANTRAINE, Bull. Soc. Roy. Brux., ii, p. 385, 
Malacologie Méditerranéanne et Littorale, p. 71, pl. 3, f. 1. 
Nothing is said by Cantraine of a shell. The single specimen is 
in the Royal Museum of Leyden. Fischer places this species in his 
genus Phyllaplysia. Compare the Petalifera species. 
P. (?) timacrna Blainville. Pl. 438, figs. 32, 33. 
Length 385 mill. Animal limaciform, oblong, obtuse in front, 
acute behind ; flat and depressed all around the base. Integument 
smooth and of an obscure greenish color. Dorsal opening narrow 
in front, gaping behind. The foot is very wide. 
Coast of Provence. 
Aplysia limacina BLAINVILLE, Journ. de Phys., xevi, 1823, p. 
287, f. 10; Dict. Se. Nat., xxvi, p. 328 (word Liévre marin) ; Rang, 
Hist. Nat. Aplys., p. 72, pl. 22, f. 6, 7. Not Tethys limacina 
Linné, Aplysia limacina auct. 
The tentacles offer no peculiar features; the integument is very 
smooth, and of a greenish-dusky color. Dorsal opening quite long, 
no appearance of a mantle being visible within it. The broad foot 
