CHITON. 
Puate XIX. 
(Figures moderately magnified.) 
Species 116. (Mus. Cuming.) 
Cu1ton Janzrrensis. Chit. testa oblongo-ovatd, valvis 
terminalibus fortiter granato-costatis, areis lateralibus 
elevatis, bi-tri-costatis, centralibus tenuiter granulato- 
liratis, interstitiis excavatis ; sordidé albé aut fusces- 
cente ; ligamento corneo. 
Tur Janerro Curron. Shell oblong-ovate, terminal 
valves strongly granately ribbed, lateral areas ele-- 
vated, two-three-ribbed, central areas finely granu- 
lately ridged, interstices excavated; dull white or 
brownish; ligament horny. 
Gray, Spicilegia Zoologica, p. 6.f. 8. 
Chiton Elenensis, Sowerby. 
Hab. Rio Janeiro. St. Elena, West Columbia; Cuming. 
Having discovered this to be the C..Janeirensis of Gray, 
and not the shell figured by Mr. Sowerby in his Conch. 
Illustrations, and by myself at Plate XV. of this Mono- 
graph, I propose to substitute the name C. Sowerbianus, 
for that species, which is of larger size and differently 
sculptured. 
Species 117. (Mus. Cuming.) 
CuiTon rLoccatus. Chit. testd ovati, valvis undique con- 
spicué seriatim granatis, granis arearum centralium 
tenuioribus, areis lateralibus subangustis, obscure bi-tri- 
liratis, valvd terminali posticd umbonaté, abrupte re- 
tusd ; purpureo-rufo. viridique vivide variegata ; liga- 
mento corneo, subarenaceo: 
THE WooLLy Cuiton. Shell ovate, valves conspicuously 
granate in rows throughout, grains of the central 
areas the finer, lateral areas rather narrow, obscurely 
two-three-ridged, posterior terminal valve umbonated 
and abruptly retuse ; brightly variegated with purple- 
red and green, ligament horny, subarenaceous. 
SoweErsy, Pro. Zool. Soc. 1841.p..104. 
Hab. Cagayan, Island of Mindanao, Philippines (under 
stones) ; Calapan, Island of Mindoro, Philippines (on 
small stones at. the depth of fifteen fathoms); Cuming. 
All the examples I have seen of this species are remark-- 
able for their richness of colouring. 
Species 118. (Mus. Cuming.) 
CHITON RUGULATUS.. Chit. testd oblongo-ovatd, medio levi, 
‘THE CRISPED CHITON. 
ad extremitates lateraque concentricé corrugato-incisd 
viridi aut rubraé, maculis albidis parvis interspersis ; 
ligamento corneo, arenaceo ; albido, rubro aut viridi ; 
tessellato. 
THE FINELY WRINKLED CuiTon. Shell oblong, smooth in 
the middle, concentrically engraved’ in a wrinkled 
manner at the sides and extremities; green or red, 
interspersed with small white spots; ligament horny, 
arenaceous, whitish, tessellated with red or green. 
SoweErsy, Pro. Zool. Soc. 1833. 
Hab. Puerto: Portrero and Inner Lobos Island, Central 
America (under stones at low water); Cuming. 
Chiefly distinguished by its concentric style of en- 
eraving, the wrinkled strie of the lateral areas being 
parallel, in a manner, with those of the central. 
Fig. 119. (Mus. Cuming.) 
The:shell here figured proves on further examination to, 
be astate of the C. fascicularis. 
For Sp. 112. see Plate XXVI. 
Species 120. (Mus. Cuming.) 
Cuiton crispus. Chit. testd subelongato-ovatd, valvis 
terminalibus ceterarum areisque lateralibus subtiliter 
decussatim granulato-crispis, centralibus levibus, aut, 
sub lente, minutissimé reticulatis ; olivaceo-viridi, satu- 
rvatiore multipunctaté ; ligamento minute granuloso- 
coriaceo, obscure tessellato. 
Shell rather elongately ovate, 
terminal valves and lateral areas of the rest finely 
decussately granulately crisped, central areas smooth, 
or, under the lens, very minutely reticulated ; olive- 
green, thickly painted with dots of a darker colour ; 
ligament minutely granulously coriaceous, obscurely 
tessellated. 
Hab. Australia. 
Allied to C. longicymba, but distinguished from that 
species by the minute decussated character. of the sculpture 
of the lateral areas. 
Fig, 121. (Mus. Cuming.). 
An obscure state of the C. Siculus ; for species 121 see 
Plate XX VI. 
May, 1847. 
