CHAMA.—Puarte III. 
A delicate sulphur-coloured shell, very irregularly scaled 
but extremely characteristic in its appearance. 
Species 15. (Mus. Cuming.) 
Cuama Pactrica. Cham, testa oblongo-ovatd, circuiter 
trigond, valvd superiore divaricatim striata, posticé 
sguamatd, squamis subdistantibus, fornicatis, erectis, 
inferiore oblique liratdé et squamatd, valvarum mar- 
ginibus internis minuté crenulatis ; purpureo-laced, 
aurantio tinctd, squamis pallidé livido-laccis. 
Tue paciric Cuama. Shell oblong-ovate, circuitously 
triangular, upper valve divaricately striate, posteriorly 
squamate, scales somewhat distant, erect, lower valve 
obliquely ridged and scaled, internal margins of the 
valves minutely crenulated ; purple-lake stained with 
orange, scales pale livid lake. 
Bropertp, Trans. Zool. Soc. vol. 1. p. 308. pl. 39. f 1. 
Hab. Lord Hood’s Island, Pacific Ocean (obtained by 
diving for the large Avicule to which it attaches) ; 
Cuming. 
This magnificent species is very peculiar in its colouring, 
being of a livid purple lake, besmeared as it were with a 
dark gamboge orange, but which latter colour does not 
appear on the scales. 
— rr 
