142 NOTARCHUS. 



dots ; the appendages edged with sulphur yellow ; a few clear green 

 circular spots in different parts of the body (Stimp., Proc. Acad. 

 Nat. Sci. Phila., vii, 1855, p. 378). 



China (N. P. Ex. Exp.). 

 N. STIMPSONI Pilsbry, n. n. 



Length 2 inches. Oblong- ovate, rather produced before, short 

 and pointed behind ; a few small, scattered, ramose appendages on 

 the back and sides; color greenish, with minute, crowded, longitu- 

 dinal black lines; a few small round nucleated spots on the sides; 

 tentacles slender, the dorsal ones very long ; eyes conspicuous, situ- 

 ated at a considerable distance in front of the dorsal tentacles. (N. 

 lineolatus Stimp., Proc. Acad. Nat. Sci. Phila., vii, 1855, p. 378). 



Loo Choo Is. (N. P. Ex. Exp.). 



This species bore the same specific name as one previously defined 

 by Gould, and apparently belongs to the same genus. 



N. CIRRHIFER Quoy & Gaimard. PI. 17, fig. 11. 



Quite a large species (length 3 inches), with elevated back and 

 long neck, having the lips extended, buccal appendages broad, and 

 tentacles very long. The contracted foot is rounded in front, pro- 

 longed to a point behind. Entire body and tentacles covered with 

 slender, ramifying processes. The integument is somewhat diaphan- 

 ous, of a grayish tint, with plaques of light brown in the center of 

 which are emerald dots, but some are circles of reddish. The pro- 

 cesses are generally parchment-white to yellowish. The gill may 

 project to the exterior and form a semicircle on the right side. It 

 is composed of a dozen main branches, of a greenish color striated 

 with brown. The penis is large, very long, marked with white dots 

 at the base. ( Q. & (?.). 



Length 10, breadth 3, alt. 3 cm. Gray-green with brown punct- 

 ulation ; the back, sides and head with light blue dots, each sur- 

 rounded by a yellow ring ; many of these peacock-eye spots are en- 

 circled by brown lines. The entire integument is beset with conic 

 papilla; the larger papillae of the back bear smaller papillae. 

 Tentacles with long papillae. Sole narrow. Gill gray-green with 

 brown striae. (Mobius). 



Mauritius (Astrolabe ; Mobius). 



Aplysia cirrhifera Q. & G., Zool. Astrol., ii, p. 311, pi. 24, f. 8. 

 Aclesia cirri/era MARTENS, in Mobius' Beitr. zur Meeresfauna 

 Mauritius, p. 308. 



