CHAMA.—Prate II. 
posticé sguamarum seriebus ab umbonibus undato-radian- 
tibus, anticée subsquamatis, valvarum marginibus intus 
minutissime crenulatis ; rufa, squamarum seriebus pos- 
ticis albis, intus albd, postice purpured. 
THE FOLIAcEOUs CHama. Shell ovate, triangular, both 
valves divaricately striated, strize slightly waved, rough, 
with rows of scales radiating in a waved manner from 
the umbones on the posterior side, and a few erect 
scales on the anterior, margins of the valves very 
minutely crenulated within; red, posterior rows of 
scales white, interior white, purple posteriorly. 
Quoy and Garmarp, Voyage de l’Astrol. Zool. 
Hab. Island of Burias, Philippines (under stones); Cuming. 
The white radiating rows of scales have a very promi- 
nent aspect on the dark red ground of this shell. 
Species 9. (Mus. Cuming.) 
CHAMA CoRRUGATA. Cham. testé oblongo-ovatd, circuiter 
trigond, valved superiore rugoso-squamata, squamis 
parvis angustis, rregularibus, adpressis, inferiore trans- 
versim vel oblique corrugatd, valvarum marginibus levi- 
bus ; valvd superiore purpureo-rufd, albivariegatd, in- 
feriore albd purpureo-rufo oblique lineata ; intus vivide 
purpurea, ad margines lutescente. 
THE WRINKLED CHaMa. Shell oblong-ovate, circuitously 
three-sided, upper valve roughly squamate, scales 
small, narrow, irregular and pressed down, lower 
valve transversely or obliquely wrinkled, margins of 
the valves smooth ; upper valve purple-red, variegated 
with white, lower white, obliquely lineated with 
purple-red, interior very dark purple, yellowish at the 
margins. 
BropeEriP, Trans. Zool. Soc. vol 1. p. 305. pl. 31. f. 7. 
Hab. RealLlejos, Central America (under stones); Cuming. 
Another species of remarkably flattened circuitous growth 
of which finer and more characteristic specimens have come 
to hand since it was described and figured by Mr. Broderip. 
