104 TETH YS—ORIENTAL. 
in front; dorsal margin round, reflected, with a radiating groove. 
(Sowb.). 
Zebu, Philippines (Cuming). 
Aplysia cornigera Sows., Conch. Icon., pl. 9, f. 40 (1869). 
The curved horn-like form and pointed apex distinguish this 
prettily striped shell. (S.). 
T. Fusca Tilesius. PI. 59, fig. 34. 
Length 9 em., swollen, oblong, brown and spotted; mantle with 
the foramen radiated ; foot oblong, narrow; swimming lobes mod- 
erately ample; tentacles folded as usual. Shell fragile, flexible. 
China, living on sea-weed, etc., along the shore. 
Aplysia fusca TrLesrus, in Krusenstern’s Voyage around the 
World in 1804-1806, p.?, pl. ?. (Russian, 3 Vols. 4to, St. Petersb., 
1809-1812, and Atlas in folio, 1813).—Rana, Hist. Nat. Aplys., p. 
65, pl. 18, f. 1.—Desu. in Lam., An. s. Vert., vii, p. 696. 
I have not seen Admiral Krusenstern’s Voyage, and have, there- 
fore, given Rang’s translation of the description and copied his re- 
production of the original figure. The species resembles 7. depilans 
in having a large oval mantle orifice, with radiated borders. 
T. ORIENTALIS Sowerby. PI. 18, fig. 25. 
Shell ovate-subtrigonal, rather solid, chestnut, tumid in the mid- 
dle of the back, caleareous within ; apex elevated, biauriculated ; 
upper margin sloped, scarcely excavated, obtusely angular at the 
end; outer lip rather straight above, rounded below; dorsal mar- 
gin straight, elongated ; lower margin round. (Sowd.). 
Chinese Seas (Cuming). 
Aplysia orientalis Sows., Conch. Icon., pl. 5, f. 18 a, b (1869). 
This shell nearly resembles Aplysia punctata in form, although 
less triangular. It has a slight bluish tint in coloring. 
T. sINENSIS Sowerby. PI. 18, figs. 26, 27. 
Shell thin, hyaline, arched, quadrate, concentrically finely ridged ; 
apex nearly terminal, small, biauriculated ; upper margin straight, 
arched, obtusely angular at the end; outer lip a little convex, dor- 
sal margin reflected, sloped below. (Sowd.). 
Chinese Seas (Cuming). 
Aplysia sinensis Sows., Conch. Icon., pl. 7, f. 29a, b (1869). 
