416 Zoological Society. 



Ch. gen, — Brachiis ano circumdatis, sub posteriore pallii margine 

 positis. Pallio lato, ultra pedem extenso ; duobus tentaculis cla- 

 viformibus ; corpore depresso. 



The animal {Hypohranchicea fusca) M'as of a sandy colour, the cen- 

 tral disc deeper, with oblong blotches of a dark brown colour. In 

 length about six inches, and in breadth two and a half. The under 

 surface was light chocolate-colour, and the tentacula reddish brown. 

 It crawled upon its flattened ventral disc in a slow and languid man- 

 ner, and when detached and thrown into deeper water floated some 

 time by undulating the free thin edges of the mantle, and gradually 

 sunk to the bottom. 



6. Descriptions of new Species of Shells collected in the 

 Eastern Archipelago by Capt. Sir Edward Belcher and 

 Mr. Adams during the Voyage of H.M.S. Samarang. By 

 Lovell Reeve, F.L.S. 



Chiton coreanicus. Chit, testd ovatd, elevatiusculd, valvis ter- 

 minalibus C(£terarum areisque lateralibus radiatim sulcatis, inter- 

 stitiis convexis peculiariter granatis, grants prominentibus , rotun- 

 datis, solitariis, valvd terminali posticd umbonatd, extremitate 

 radiatd parvd, brevi ; areis centralibus longitudinaliter tenuissime 

 granaio-liratis, lirarum inter stitiis excavatis ; areis lateralibus 

 nigricante-viridibus, grants lutescentibus, areis centralibus lutes- 

 centibus nigro varie maculatis et variegatis ; ligamento tenuiter 

 granoso-coriaceo, nigricante-viridi et virescente concinne tessellato. 

 Long. If poll. ; lat. 1 poll. 

 Hab. Korean Archipehigo, under stones. 



The sculpture of this species is not much unlike that of the C. lu- 

 ridus ; still it is distinct, and accompanied with a very characteristic 

 style of painting. The central areas of the shell are of a yellowish 

 ground, blotched and variegated with black. The terminal and 

 lateral areas are very dark green, with the prominent granules con- 

 spicuously tinged here and there with yellow. In addition to these 

 peculiarities, the ligament is strikingly tessellated with dark and pale 

 sea-green. 



Chiton fuliginatus. Chit, testd oblongd, valde elevatd, valvis ter- 

 minalibus ccdterarum areisque lateralibus subirregulariter concen- 

 trice striatis, prope marginem incisis, areis centralibus Icevibus, sub 

 lente minutissime reticulatis ; sordide albd, nigro plus minusve 

 sparsim fuliginatd ; ligamento corneo, angustOyfusco. 

 Long. I" poll. ; lat. -^ poll. 

 Hab. Korean Archipelago. 



The terminal and lateral areas, the latter of which are so slightly 

 raised as to be nearly on a plane with the rest of the shell, are stri- 

 ated concentrically, the striae next the margin being somewhat deeply 

 engraved. Of numerous specimens collected at the above-mentioned 

 islands, all are of an uniform dull white, more or less sparingly be- 

 Booted with black. 



