DESCRIPTIONS OF NEW CHITONS. 289 



exchanging it for that of the gentleman who has brought 

 from the Cape the only specimens existing in British cabi- 

 nets. 



Chiton ciliatus. (Con. lUus. fig. 79). 



Ch. testa depressa, dorso subrotundato, valvis sulDreniformibus, ad latera 

 disjunctis; aieis lateralibus oblique granoso-sulcatis ; costa granulosa 

 utrinque marginata ; areis centralibus granoso-sulcatis, valva prima ra- 

 diatim costata ; margine ciliato. Long, f ; lat. i, poll. 



Hab. ? Mus. G. B. Sowerby, Sen. 



The valves are flattish, with the edges arched and slightly- 

 beaked, and not united at the lateral extremities ; central 

 areas longitudinally grooved : a slightly raised granular rib 

 separates the lateral from the central areas ; these are ob- 

 liquely grooved so as to meet the grooves of the central 

 areas at acute angles on the rib ; margin brown, covered with 

 light brownish hairs ; the colours are variegated, green, yel- 

 low and black. 



Chiton petholatus. (Con. Illus. fig. 64, Qb). 



Ch. testa laevi, subdepressa, antice posticeque sub-attenuata ; dorso ro- 

 tundato ; valvis subrostratis, prima radiatim costata, ultima apice termi- 

 nali ; margine lato ciliato. Long. If. ; lat If, poll. 



New Holland. Mus. G. B. Sowerby, Sen.' 



The margin of this beautiful species is broad, flesh-co- 

 loured, with brown bands, and short stiff hairs ; the shell is 

 smooth, rather flat, tapering towards each extremity ; the 

 valves are slightly beaked, the first radiated, the last with a 

 terminal apex. A very slight rib separates the lateral from 

 the central areas. The ground colour is light green, varied 

 with brown, and a broad central white line. A variety oc- 

 curs with a brown dorsal band, and angular brown markings, 

 named Ch. porphyrius in ' Conchological Illustrations.' 



Chitonellus strigatus. (Con. Illus. fig. 63). 



Ch. corpore limaciformi, velutino ; valvis testaceis parvis, prima semi- 

 lunata, ultima ovali, intermediis hexagonis, fasciis tribus dorsalibus ; mar- 

 gine fasciculis minimis prope valvas instructo. liOng. f ; lat. f , poll. 



Hab. ? Mus. Stainforth. 



The body is cylindrical, minutely studded with hairs, giving 

 it a velvety appearance. As in other species of Chitonellus^ 

 the valves are small \ the first is semilunar, the last oval, the 



