CHITON. 
Prater XII. 
Species 63. (Mus. Cuming.) 
CHITON CERASINUS. Chit. lestd ovatd, utrinque subatten- 
uatd, valvis undique minutissime creberrime puncturatis, 
areis lateralibus vix elevatis ; fusco-rubente ; ligamento 
corneo, translucido. 
THE CHERRY-COLOURED Curtton. Shell ovate, a little at- 
tenuated at each end, valves very minutely and closely 
punctured throughout, lateral areas scarcely raised ; 
brownish red; ligament horny, transparent. 
Curmnirz, Conch. Cab. vol. viii. p. 272. pl. 94. f. 796. 
Hab. ? 
The valves of this species are apparently smooth, but on 
examination with the lens, they will be found to be covered 
throughout with the minutest and closest possible punc- 
tures, as represented in Chemnitz’s figure, published in 
1785; since which time it does not appear to have been 
noticed. 
Species 64. (Mus. Cuming.) 
CHITON MARMOREUS. Chit. testd ovatd, valvis terminalibus 
ceterarum areisque lateralibus radiatim granulatis, 
granulis solitariis, subirregularibus, centralibus con- 
vexis, levibus umbonibus subappressis ; lutescente-albd, 
maculis virescentibus oblongis lauté pictd ; ligamento 
squamato-coriaceo, virescente-albd, maculis grandibus 
virescentibus tessellato. 
THE MARBLE CurTon. Shell ovate, terminal valves and 
lateral areas of the rest radiately minutely granulated, 
granules solitary, somewhat irregular, central areas 
convex, smooth, umboes a little appressed ; yellowish 
white, showily painted with oblong light green 
blotches; ligament squamately coriaceous, greenish- 
white, tessellated with large light green spots. 
Curemnitz, Conch. Cab. vol. viii. p. 282. pl. 95. f. 808. 
Hab. Savannah-le-mer, West Indies. 
A pretty light-green painted shell, which might be 
confounded with the C. marmoratus, though amply distin- 
guished both in form and sculpture. 
Species 65. (Fig. a and 4. Mus. Cuming.) 
Cuiton oGicas. Chit. testé ovatéd, valvis crassiusculis et 
ponderosis, medio in juventute carinatis, posticé sinuatis, 
terminalibus ceterarum areisque lateralibus creberrimeé 
tenuiliratis, liris irregularibus interstitis minutissime 
reticulatis, centralibus undique minutissimé reticulatis, 
valvis senectute erosis, levibus ; sordidé virescente-alba, 
piceo-nigro hic illic plus minusve tinctd et punctaté ; 
ligamento corneo, setis brevibus sparsim obsito. 
THE GREAT CuHiToN, Shell ovate, valves rather thick 
and ponderous, keeled along the middle when young, 
posteriorly sinuated, terminal valves and lateral areas 
of the rest very closely finely ridged, ridges irregular 
and very minutely reticulated in the interstices, cen- 
tral areas very minutely reticulated throughout, valves 
eroded with age, smooth; dull greenish white, more 
or less stained and dotted here and there with pitch 
black; ligament horny, sparingly beset with short 
bristles. 
Cuemnitz, Conch. Cab. vol. viii. p. 222. pl. 96. f. 819. 
Hab. Cape of Good Hope; Rev. W. V. Hennah. 
The elaborate sculpture of this species in its primitive 
growth, has not been hitherto noticed; it is only to be 
discerned in young specimens, and they are very rarely 
met with. In the beautiful little shell from Mr. Cuming’s 
collection, represented at fig. a, the entire surface is most 
elaborately reticulated, but so minutely, that it almost 
requires the assistance of a lens to observe its complicated 
sculpture; the lateral areas are very closely ridged with 
the minute reticulated pattern still appearing in the inter- 
stices. As the shell advances in growth, the sculpture 
becomes gradually worn away by its exposure to the fury 
of the waves, and when it reaches the size of the specimen 
at fig. 6, it is not often found in so good a state of preser- 
vation as there represented. 
Species 66. (Mus. Cuming.) 
CHITON scaRraBzuUS. Chit. testé oblongo-ovatd, valvis 
levibus aut obscuré concentricé striatis, sub lente minu- 
tissimé et creberrimé puncturatis ; fusco-nigré ; liga- 
mento squamato-coriaceo, virescente-albo, maculis nigris 
subdistantibus conspicueé tessellato. 
THE BEETLE CurtTon. Shell oblong-ovate, valves smooth 
or obscurely concentrically striated, very minutely 
and closely punctured under the lens; brownish- 
black; ligament pale sea-green conspicuously tessel- 
lated with rather distant black spots. 
2 
Hab. 
March, 1847. 
