228 TESTACEOUS MOLLUSCA. 
obliquely affixed, with concentric lamella which are compressed on 
each side..14. Java. 
C. Ruperauis Lam. 15.—Del. t. 13. f. 5. Orbicular, lamellar, 
whitish, tinged with rose color towards the beaks, the lamellz 
partly elevated waved and plaited on the larger valve—Variety 
with the laminz shorter and somewhat curled; the smaller valve 
rather convex. South Seas. ; 
C. Croceata. Lam. 16.—Del. t. 13. f. 6. Suborbicular, flesh 
or pale saffron coloured, roughened by whitish and rather prominent 
scales, smaller valve convex ; inside reddish yellow with the mus- 
cular impression very white and arcuated, inner margin entire. 
C. Jaronica Lam. 17. Roundish ovate, convex, reddish, the beak 
of the larger valve somewhat sinistral, with longitudinal granular 
grooves towards the beaks, the upper valve marked with transverse 
concentric grooves and its beaks not prominent... Japan. The 
description was drawn from some wretched specimens in the Museum 
at Paris. The interstices of the raised sulci are paler. 
C. Fronposa. Brod. Z. P. 1834-—Z. T. 1. t. 38. f. 1. Sub- 
lobate, lamellar, light pinkish purple, the lamelle sinuated and 
foliated ; foliations luxuriant, yellow, streaked and tinged with the 
ground colour, longitudinally plaited, anteriorly larger, and forming 
two radiating rows in each valve towards the hinge ; within white 
the margin purplish and crenulated. . (variety Lamelle more nu- 
merous, foliations shorter)—Colombia variety. Z. T. 1. t. 38. f. 2. 
purple, the lamellae crowded, foliations very short. . Mexico. Trans- 
parent. 
C. Petructpa. Brod. Z. P.1834.—Z. T.1. t. 38. f. 3. Stained 
or streaked with red or rose colour on a white ground, semitrans- 
parent, lamellee crowded, foliations elongated and pellucid : within 
white and the margin crenulated. Peru. 
C. Lozata. Brod. Z. Tr. 1. t. 38. f. 4,5.—Z. P. 1834. White, 
lobed, subrhomboidal, with radiating striz and close set foliated 
fimbriated lamelle : inner margin crenated. W. Indies. 


free valve, received into the pit of the sessile one. An elongated 
curved shelly substance, retained by a convex ligament in the bottom 
of the beaks ineach valve : a very elongated posterior, and a rounded 
anterior scar in each valve, palleal scar simple, ligament external. 
C. Cuamorpes Stut. Z. J. 5. p. 98. t. 42. bis——Son. G.—Reeve 
Syst. t. 40. Involute, brownish red or white; internally of a 
greenish pearly lustre, attached by the anterior side of the right 
valve which is of great depth ; left valve but slightly convex ; the 
clavicular appendage with a groove on the convex side. Port 
Jackson. 
