CHITON. 
Puate XVII. 
(Figures slightly magnified.) 
Species 97. (Mus. Cuming.) 
Cuiton PRopuctus. Chit. testé elongato-ovaté, valvis 
terminalibus ceterarum areisque lateralibus concentricé 
undulatim striatis, centralibus longitudinaliter sulcatis ; 
pallidé cinereo-albd, valoarum margine postico rufo- 
punctato ; ligamento corneo. 
THE LENGTHENED Cuiton. Shell elongately ovate, ter- 
minal valves and lateral areas of the rest concentri- 
cally undulately striated, central areas longitudinally 
grooved ; pale ash-white, posterior edge of the valves 
dotted with red; ligament horny. 
3 
Hab. 
The posterior terminal valve of this elongated species is 
unusually large. 
Species 98. (Mus. Cuming.) 
CHITON SANGUINEUS. Chit. testé elongato-ovatd, valvis 
terminalibus ceterarum areisque lateralibus concentricé 
undulatim striatis, centralibus longitudinaliter crebri- 
striatis ; cinered, viridi-fusco variegatd, maculd grandi 
sanguined utringue umbonem utriusque valve conspicue 
tinctis ; ligamento corneo, arenaceo. 
THE BLOOD-STAINED CuITon. Shell elongately ovate, 
terminal valves and lateral areas of the rest concen- 
trically undulately striated, central areas very closely 
longitudinally striated; ash-colour variegated with 
greenish brown, with a large blood-red stain on each 
side the umbo of each valve; ligament horny. 
Ha. St. Vincents, West Indies ; Guilding. 
The red blotches of painting which characterize this 
species are constant in all the examples I have seen; in 
sculpture it is allied to C. limaciformis 
Species 99. (Mus. Cuming.) 
CurTon RETUsUs. Chit. testd oblongo-ovatd, valvis termi- 
nalibus, posticé peculiariter producté et retusi, cate- 
rarum areisque lateralibus turgidis elevatis radiatin 
sulcatis, sulcis distantibus, centralibus longitudinaliter 
liratis, liris postic? convergentibus ; pallescente, fusco 
strigatd ; ligamento corneo. 
THE BLUNT CurTon. Shell oblong-ovate, terminal valves, 
of which the posterior is peculiarly produced and 
blunted, and lateral areas of the rest swollen, elevated, 
and radiately grooved, grooves rather distant, central 
areas longitudinally ridged, ridges converging pos- 
teriorly ; pale, streaked with brown; ligament horny. 
Sowersy, Pro. Zool. Soc. 1832., p. 28. 
Hab. Guacomayo and Puerto Portrero, Central America 
(under stones on the shore); Cuming. 
Distinguished from all other species by the curious 
blunted structure of the posterior terminal valve. 
Species 100. (Mus. Cuming.) 
CuITON sETosus. Chit. testé oblongo-ovatd, valvis utrinque 
laticostatis, medio levibus; virescente-cinered, rufo viri- 
dique lauté variegatd ; ligamento corneo, setis obsito. 
THE BRISTLY CuIToNn. Shell oblong-ovate, valves broadly 
ribbed on each side, smooth in the middle; greenish 
ash-colonr, showily variegated with red and green, 
ligament horny, beset with bristles. 
SowERBY, Pro. Zool. Soc., 1832. 
Hab. Guacomayo, Central America (on exposed rocks); 
Cuming. 
The lateral areas are scarcely distinguished, except by a 
pair of ribs, the interstices on either side of which are 
broadly grooved. 
Species 101. (Mus. Cuming.) 
CHITON c#LATUS. Chit. testd oblongo-ovatd, anticé sub- 
attenuatd, valvis terminalibus, posticd parvd, declivi, 
ceterarum areisque lateralibus laticostatis, laminis cre- 
berrimis undulatis nitide calatis, centralibus minutissime 
reticulatis ; pulcherrimé viridi roseoque ornata ; liga- 
mento corneo, hic illic setoso. 
THE curvED Curron. Shell oblong-ovate, somewhat 
attenuated anteriorly, terminal valves, the posterior 
of which is small and slanting, and lateral areas of 
the rest broad-ribbed and neatly curved with close-set 
waved laminz, central areas very minutely reticulated; 
beautifully ornamented with green and pink; liga- 
ment horny, here and there bristly. 
Hab. New Zealand; Earl. 
Care must be taken not to confound this beautiful spe- 
cies with the C. setosus. 
March, 1847. 
