CHITON.—Puate VIII. 
Species 44. (Mus. Cuming.) 
CHITON DIVERGENS. Chit. testd oblongo-ovatd, valvis con- 
veais, terminalibus rudé radiatim striatis, ceterarum 
areis lateralibus quoque radiatim striatis, striis fortibus, 
undulatis, bifurcatim divergentibus, areis centralibus 
minutissime rugatis, rugis latera versus fortioribus ; 
albidd, viridi ad latera concinné variegaté ; ligamento 
corneo, subtilissimé granuloso-coriaceo. 
DIVERGENT Cuiton. Shell oblong-ovate, valves 
convex, the terminal rudely radiately striated, lateral 
areas of the rest also radiately striated, the striz 
strong, waved, and bifurcately divergent, central 
areas very minutely wrinkled, wrinkles stronger 
towards the sides; whitish, prettily variegated at the 
sides with bright green; ligament horny, very finely 
granulously coriaceous. 
Hab. New Holland; Jukes. 
It is important to notice the rudely waved divergent 
structure of the raised striee of the lateral areas, as there 
are one or two species from the same locality approximating 
in this respect. 
THE 
Species 45. (Mus. Cuming.) 
CuITon atatus. Chit. testé elongata, valvis anticé coarc- 
tatis, terminalibus et ceterarum areis lateralibus de- 
cussatim striatis, quasi granulatis, centralibus creber- 
rime elevato-striatis, striis acutis, subirregularibus, 
interstitiis excavatis ; lutescente, viridi per marginem 
anticam arearum lateralium albiarticulato, umbonibus 
pallidé roseis; ligamento corneo, arenaceo, utringue 
lato. 
THE WINGED CuiTon. Shell elongated, valves contracted 
anteriorly, the terminal and lateral areas of the rest 
decussately striated, as if granulated, central areas 
very closely elevately striated, striee sharp, somewhat 
irregular, interstices excavated ; yellowish, very beau- 
tifully variegated in a dotted manner with bright 
green, the green articulated with white along the 
anterior edge of the lateral areas, umbones faintly 
tinged with pink; ligament horny, arenaceous, broad 
on either side. 
SoweErsy, Pro. Zool. Soc., 1841, p. 61. 
Hab, Islands of Siquijor and Zebu, Philippines (under 
stones at low water); Cuming. 
Distinguished by its elongated form, the winged struc- 
ture of the valves, its capacious ligament and prettily 
variegated style of painting. 
Species 46. (Mus. Cuming.) 
CHITON ACUTILIRATUS. Chit. testd subelongato-ovatd, 
valvd ‘posticd terminali ad extremitatem umbonatd et 
retusa, anticd rotundataé, ambabus ceterarum areisque 
lateralibus radiatim et decussatim granoso-striatis, cen- 
tralibus acute et creberrimeé liratis, iris umbones versus 
convergentibus ; albidd, viridi per marginem anticam 
arearum lateralium albiarticulato, umbonibus roseo et 
purpureo tinctis; Ugamento corneo, arenaceo, granis 
peramplis. 
THE SHARPLY-RIDGED CuIToNn. Shell somewhat elon- 
gately ovate, the posterior terminal valve umbonated 
and retuse at the extremity, anterior rounded, and 
lateral areas of the rest radiately and decussately 
granosely striated, central areas sharply and very 
closely ridged, ridges converging towards the um- 
bones; whitish, variegated in a dotted manner with 
bright green, the green along the front edges of the 
lateral areas articulated with white, umboes tinged 
with pink and purple; ligament horny, arenaceous, 
the grains very large. 
Hab. Cuba, Barbadoes. 
The sculpture of this shell is, as it were, an exaggerated 
condition of that of the preceding species, and the painting, 
though coming from so widely remote a locality, is exactly 
sumilar; it may be at once distinguished, however, from 
the C.alatus by the retuse and umbonated structure of 
the posterior terminal valve. 
