CHITON.—Puare XIII. 
impresso-striatis ; luteo-fuscd, maculd fuscd trigond 
insigni, utrinque lutescente, in utrdque valvé medio 
pictd ; ligamento. corneo, translucido, granis rugosis 
corneis subdistantibus obsito. 
THE FISHER-BoAT Cutton. Shell oblong, a little atten- 
uated anteriorly, valves swollen in the middle, 
smooth or very minutely impressly striated through- 
out; yellowish brown, painted along the middle of 
each valve with a remarkable triangular brown spot 
yellowish on each side; ligament horny, transparent, 
beset with rather distant rough horny grains. 
Cuemnttz, Conch. Cab. vol. viii. p. 279. pl. 95. f. 799. 
Hab. Hast Indies. 
This is another interesting species of Chiton which I 
have the pleasure of restoring from the obscurity in which 
it has remained since the publication of the ‘ Conchylien 
Cabinet’, in 1785. 
Species 73. (Mus. Cuming.) 
CHITON aQuaTILis. Chit. testé ovatd, valvis undique 
THE 
Hab, 
A 
creberrimé elevato-striatis, striis hic illic autem raro 
bifurcatim divergentibus, interstitiis subeacavatis ; eru- 
ginoso- viridi, medio luteo tinctd, fasciis viridibus an- 
gustis transversis ; Uigamento squamis albido-virescen- 
tibus. 
RIPPLED Curton. Shell ovate, valves very closely 
elevately striated throughout, strie here and there, 
but rarely, bifurcately divergent, interstices rather ex- 
cavated ; bronze-green, yellowish in the middle with 
narrow transverse green bands; ligament squamately 
coriaceous, scales pale sea-green. “ 
P) 
peculiar smoothly bronzed shell, painted across the 
middle with narrow bands or ripples of green. 
