130 CONCHOLOGY,. 
4, Genus Cancellaria. Pl. XI. 
Animal. See Purpura, hereafter. 
Shell. Oval or globular, wrinkled ; spire middling and pointed; 
aperture wide, ovate, grooved, and sometimes canaliculated ante- 
riorly; the right edge concave and trenchant; the left nearly 
straight and marked in the middle with two or three folds; oper- 
culum horny. Inhabits the Indian Ocean. One species only 
is found in America. Forty-nine living species. Twenty fossil. 
Cancellaria crispa. Cancellaria littoriniformis. 
Animal. 
C. costifera. 
C, articularis. 
C, brevis. 
C. pusilla. 
C. bullata. 
C. tuberculosa. 
C. pulchra. 
C. cancellata. 
C. similis. 
C. chrysostoma. 
C. rugosa. 
C. hemastoma. 
C., rigida. 
C. costata, 
C. goniostoma. 
C. trigonostoma. 
C. levigata. 
C. spirata. 
C. obliquata. 
C. scalata. 
C. contabulata, 
C. crenifera. 
C. scalarina. 
C. elegans. 
C. asperella. 
C. oblonga. 
C. tesselata. 
C. nodulifera. 
C. cassidiformis. 
C. Australis. 
C. reticulata. 
C. candida. 
C. ovata. 
C. Obesa. 
C. acuminata. 
C. solida. 
C. gemmulata. 
C. decussata. 
C. indentata. 
C. alba. 
C. clavatula. 
C. uniplicata. | 
C. mitriformis. 
C. tritonis. 
C. granosa. 
C, piscatoria. 
C. buccinoides.* 
5. Genus Fasciolaria. Pl. XI. 
Entirely unknown. 
