138 TESTACEOUS MOLLUSCA. 



C. FovEOLATUM. Soiv. Jim. Z. P. 1840.— C.7./. 65, Of a 

 somewhat rounded oval, longer than broad, compressed, white, 

 •with forty-three ribs, the twenty-five posterior rounded and cre- 

 nulated, the adjoining ones smooth and subangulated, and the 

 extreme anterior concave and crenulated at the sides. H^.-l^^. 

 — Swan River. 



C. Variegatum. Sow. Jim. Z. P. 1840.— C. I.f. 57. Oval, 

 subventricose, rosy, spotted with orange, red, brown, and white ; 

 with forty-eight ribs of which the posterior are rounded and cre- 

 nulated, the central very angulated and smooth, the anterior rather 

 flattened and armed with oblique tubercles. Ito'-^t'o* — Phi- 

 lippines. 



C. Unicolor. Sow. Jim. Z. P. 1840.— C J. /. 29. c^- 42. 

 Oval, ventricose, anteriorly subelongated, slightly emarginated, 

 •white, obscurely spotted with purple, the epidermis thin and 

 brown : ribs nimierous, rounded and minutely crenulated, the ex- 

 treme ones flattened, l^^^^ . . 1^. — Isle of Ticao. 



C. Maculosum. Wood. G. C. t. 52. /. 1. p. 218.— TF. t. 5. 

 /. 17 — C. I.f. 63. Longitudinally oval, moderately thick, white 

 mottled with livid red, about forty-eight narrow rounded radiating 

 ribs, which are slightly broader than their interstices, and are 

 armed with small tubercles only on about eight of the broader 

 anterior ones, and on two or three of the extreme posterior, the 

 central ribs being nearly smooth : inside white, with two short 

 indistinct livid purple rays ; the hinge anteriorly stained with 

 purplish crimson. Ij. 



C. Multistriatum. Sow. Z. P. 1833.— C I. f. 59. Ob- 

 oval, pale fulvous, dotted with rufous : with numerous radiating 

 stripe, the posterior ones decussated, the anterior ones subgranular. 

 ^-. . -S-. 



^"C. Impolitum. Sow. Jim. Z. P. 1840.— C. I. f. 6. cj- 66.— 

 Reeve, t. S4.f. 6. Thick, wedge-shaped, subequilateral, narrowed 

 at the dorsal edge, rounded at the ventral : white, obscurely 

 spotted with brown, anteriorly banded with purple : with thirty- 

 five subcrenulated dull ribs, the epidermis brown. Ito-'^^* 

 — China. 



C. OxYGONUM. Sow. Jon. Z. P. 1840.— C. /./. 9.— Reeve, t. 

 84. _/'. 9. Oval, subventricose, narrow at the umbones, white 

 spotted with red and brown, within white : with thirty-five ribs of 

 which the eighteen posterior are strong, acutely angulated, crenu- 

 lated on their posterior side and on the angles, the next nine acutely 

 angulated, crenated at the angles but smooth at the sides, the 

 extreme anterior ones narrow, smooth, with oblique tubercles. 

 \2...\^,~ China. 



C. SUBELONGATUM. SoW.JvH.Z.P. 1840.— C I.f. 61. 



Oval, subventricose, elongated, thick, slightly gaping anteriorly ; 



