CHITON. 
Prats XVIII. 
Species 96. (Mus. Cuming.) 
CHITON pispaR. Chit. testd ovatd, valvis terminalibus 
ceterarum areisque lateralibus creberrimé planigra- 
natis, centralibus levibus, aut, sub lente, minutissime 
reticulatis, ad latera corrugato-striatis ; einered, nigro- 
olivaceo et interdum albo varid ; ligamento granoso- 
coriaceo, tessellato. 
THE UNEQUAL Curton. Shell ovate, terminal valves and 
lateral areas of the rest very closely flatly grained, 
central areas smooth, or, under the lens, very minutely 
reticulated, striated in a wrinkled manner at the sides ; 
ash colour, variegated with blackish olive and some- 
times white; ligament granosely coriaceous, tessel- 
lated. 
Sowersy, Pro. Zool. Soc. 1832. p. 58. 
Hab. Island of Saboga, Panama (under stones) ; Cuming. 
The specimen here figured is characterized by a sprinkle 
of white specks, which does not occur in the example 
figured by Mr. Sowerby in the ‘Conchological Illustrations’. 
Species 107. (Mus. Cuming.) 
Cuiton pEcussatus. Chit. testd oblongo-ovaté, posticé 
subattenuatd, valvis terminalibus ceterarum areisque 
lateralibus granatis, granis subobtusis numerosis irregu 
laribus interstitiis scabris, areis centralibus striis subcor- 
rugatis creberrimé decussatis ; pallidé luteo-virescente, 
fusco per summitatem flammata. 
THE DECUssATED Curton. Shell oblong-ovate, a little 
attenuated posteriorly, terminal valves and lateral 
areas of the rest grained, grains rather obtuse, nume- 
rous, irregular, interstices rough, central areas decus- 
sated with very close slightly wrinkled strie; pale 
yellowish green, flamed along the summit with 
brown. 
Hab. Australia; Jukes. 
The sculpture of the central and lateral areas affords a 
pleasing contrast in this species. 
Species 108. (Mus. Cuming.) 
CHITON LABECULATUS. Chit. testd ovatd, valvis termina- 
hibus ceterarum areisque lateralibus radiatim sulcatis et 
obscuré granulatis, valod terminali posticd umbonatd, 
areis centralibus creberrimé elevato-striatis ; cinerea, 
Susco interdum variegatd ; ligamento subtilissimé gra- 
noso-coriaceo. 
THE BLEMISHED Curron. Shell ovate, terminal valves 
and lateral areas of the rest radiately grooved and 
obscurely granulated, posterior terminal valve umbo- 
nated, central areas very closely elevately striated ; 
ash-colour, sometimes variegated with brown; liga- 
ment very minutely granosely coriaceous. 
) 
Hab. 
The lateral areas of this species are scarcely raised, with 
the radiating grooves developed about the middle of them 
only ; it approximates the C. Rissoi. 
Species 109. (Mus. Cuming.) 
CHITON ASTRIGER. Chit. testé oblongo-ovatd, valvis parvis, 
summitate levibus, utringue creberrimé striolatis ; viri- 
di ; ligamento corneo, spicularum sericarum cristis densis 
grandibus albis ornato. 
THE STAR-ENCIRCLED CuiTon. Shell oblong-ovate, 
valves small, smooth along the summit, very closely 
finely striated on each side; green; ligament horny, 
ornamented with large dense tufts of white silky spi- 
cule. 
Hab. Barbadoes. 
One of the most beautiful of the fasciculate tribe I have 
met with. 
Species 110. (Mus. Cuming.) 
CHITON LyRATUS. Chit. testi ovatd, medio elevatiusculd, 
valvis terminalibus ceterarum areisque lateralibus levi- 
bus, centralibus medio levibus, ad latera longitudina- 
liter sulcatis ; cinereo-virescente, macula trigoni fusces- 
cente per summitatem hic illic tincté : ligamento squa- 
. mato-coriaceo, exiliter tessellato. 
THE HARP-STRINGED CuITOoN. Shell ovate, rather elevated 
in the middle, terminal valves and lateral areas smooth, 
central areas smooth in the middle, longitudinally 
grooved at the sides; ash-green, stained with a brown 
triangular spot here and there along the summit; 
ligament squamately coriaceous, faintly tessellated. 
SoweErry, Mag. Nat. Hist. 1840. Conch. Illus. f. 126. 
Hab. Prince Island, West Africa (under stones) Rev, W. 
V. Hennah. 
April, 1847. 
