CHITON. 
Puate XXIV. 
(Figures of the natural size.) 
Species 161. (Mus. Brit.) 
CHITON PROPRIUS. Chit. testé ovatd, valvis terminalibus 
ceterarum areisque lateralibus liris brevibus transversis, 
irregularibus solitariis peculiariter eusculptis, centra- 
libus minutissime reticulatis, valvd posticd terminal, 
umbonaté ; cinereo-olivaced ; ligamento squamato-cori- 
aceo, tessellato. 
THE PECULIAR Cur1Ton. Shell ovate, terminal valves and 
lateral areas of the rest peculiarly sculptured with 
irregular solitary short transverse ridges, central areas 
very minutely reticulated, posterior terminal valve 
umbonated; ash-olive; ligament squamately coria- 
ceous, tessellated. 
ITab. West coast of Central America; Dr. Sinclair, R.N. 
This is certainly a very characteristic species; there is 
a peculiarity in the sculpture of the terminal and lateral 
areas, which I find it difficult to convey by description. 
. 
Species 162. (Mus. Brit.) 
CHITON ARBUTUM. Chit. testd ovatd, valvis terminalibus 
ceterarum areisque lateralibus striis granatis, posticé 
divergentibus, reticulatim decussatis, areis centralibus 
granulis obtusis subquadratis creberrimé exculptis ; 
viridi aut rufescente, nigripunctatd ; ligamento squa- 
mato-coriaceo, tessellato. 
THE STRAWBERRY CHITON. Shell ovate, terminal valves 
and lateral areas of the rest reticulately decussated 
with grained strie diverging off posteriorly, central 
areas very closely sculptured with blunt squarish 
granules; green or reddish, dotted with black; liga- 
ment squamately coriaceous, tessellated. 
Hab. ? 
An interesting species of which there are several exam- 
ples in the British Museum, but without any information 
attached. 
Species 163. (Fig. a to d Mus. Brit.) 
CHITON LoNGIcyMBA. Chit. test@ oblongo-ovatd, valvis 
terminalibus ceterarum areisque lateralibus tenuiter 
liratis, liris subgranatis irregulariter radiatim diver- 
gentibus, areis centralibus minute reticulatis ; colore 
varia ; ligamento corneo, arenaceo. 
THE CANOE Curton. Shell oblong-ovate, terminal valves 
and lateral areas of the rest finely ridged, ridges 
slightly grained and irregularly radiately diverging, 
central areas minutely reticulated; colow: variable ; 
ligament horny, arenaceous. 
Der Buartnvitye, Dict. des Sci. Nat. vol. xxxvi. pl. 542. 
Hab. New Holland. 
It would be vain to attempt to describe the variation 
which this species exhibits in colour and design of painting ; 
in this respect, it is of all Chitons the most variable, but 
the sculpture is uniform throughout. 
Species 164. (Mus. Brit.) 
CHITon Muscarius Chit. testé ovatd, valvis terminalibus 
ceterarum areisque lateralibus subrugosis, radiatin 
sulcatis, centralibus levibus et minute creberrime punc- 
turatis ; olivaceo-viridi, medio rufescente, punctis nigris 
ceruleo-marginatis undique picté ; ligamento granato- 
coriaceo, granis amplis. 
THE FLY spoT Curron. Shell ovate, terminal valves and 
lateral areas of the rest roughish and radiately grooved, 
central areas smooth and minutely very closely punc- 
tured ; olive-green, reddish in the middle, painted 
throughout with black dots ; ligament granosely cori- 
aceous, grains large. 
Hab. 2 
Allied to the C. punctulatissimus, but easily distinguished 
on comparison. 
Species 165. (Mus. Brit.), 
CHITON LENTIGINOSUS. Chit. testd ovatd, undique minu- 
tissime reticulata, areis lateralibus subobscuré concen- 
tricé sulcatis; aurantio-luted vel olivaceé, punctis 
livido-ceruleis aspersé ; ligamento squamato-coriaceo, 
tessellato. 
THE SPECKLED Carron. Shell ovate, very minutely 
reticulated throughout, lateral areas somewhat ob- 
scurely concentrically grooved; orange-yellow or olive, 
sprinkled with livid blue dots; ligament squamately 
coriaceous. 
SoweErsy, Conch. Illus. f. 120. 
Hab. Newcastle, Australia; Dr. Dieffenbach. 
Variable in the ground colour; but constantly charac- 
terized by a sprinkling of livid blue dots. 
May, 1847. 
