THE 
PERONIAN APLYSIA, 
GENERIC CHARACTER. 
Body repent, covered by reliedled membranes 
and a dorsal shield. 
Foramen on the right side. 
Vent situated at the extremity of the back. 
Tentacula four, situated in front. 
SPECIFIC CHARACTER, i^fc. 
Yellowish subcylindric APLYSIA, subattenu¬ 
ated in front, and truncated behind. 
La Dolabelle. 
Cuvierf Ann. Mus. Hist. Nat. No. 30. 
This species is an inhabitant of the Indian seas, and 
is sometimes seen of larger jsize than represented on 
the plate. 
