THE 
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ORANGE ASCIDIA. 
Generic Character . 
Body fixed, generally subcylindric. 
Apertures two at the upper part; one lower 
than the other. 
Specific Character. 
Subglobose orange-red ASCIDIA, with cylin- 
dric terminal papilla:. 
This species of Ascidia is described by Dr. Pallas, 
who informs us that it is a native of the Asiatic seas, 
and is often found of the size of a large orange. Its 
shape is nearly globular, but truncated at the base, 
where it is affixed to stones, shells, &c. the external 
skin or rind, which in the dried specimens is usually 
marked here and there by several large wrinkles, is, 
in its recent state, of an even surface, very tough, 
of scarcely more than a nail's thickness, and rough¬ 
ened all over with distant, callous specks: on the 
upper part are two cylindric, wrinkled papilla:, one 
larger than the other, and both furnished with a cru- 
cial aperture : within the cavity of the rind is a sac- 
culus or bladder, inserted by two fleshy ducts into 
the orifices of the papillae, and consisting of circular 
exterior 
