20 



sliglitlj spiral posterior plait ; length Oo, breadth 

 0"15. Varies in being wholly of a pale colour. A 

 few specimens were dredged in sandy mud at a 

 depth of seven fathoms in the Bay of Caraccas by 

 Mr. Cuming. Conch. III. Oyprceadce, f. 58. 



29 Ovulum Avena. Shell oblong, red, extremities 

 rather acuminated, back somewhat gibbous, very 

 finely transversely striated: outer lip thickened, 

 paler ; aperture narrow, broader at the anterior, 

 and notched at the posterior extremity ; columella 

 with a single plait posteriorly : length O'.i 5, breadth 

 0"22. Found by Mr. Cuming at Conchagua in 

 Mexico. Varies in the intensity of its colouring. 

 Conch. III. Cyprceadce, f. 59. 



30 inflexum. Shell oblong, somewhat cylin- 

 drical, smooth, pale ; posterior extremity some- 

 what beaked, beak inflected ; aperture rather eft'use 

 anteriorly ; outer lip thickened, columellar lip 

 keeled within, with a single plait posteriorly: length 

 0*7, breadth 0*25. A single specimen was found 

 by Mr. Cuming in the Gulphof Dulce. Two were 

 in the late G. Humphrey's Collection. Conch. 111. 

 Cyprcradce, f. 60. 



3 1 ■ a3quale. Shell oblong, somewhat cylindri- 

 cal, red ; outer lip thickened ; extremities rather 

 obtuse ; aperture rather broad, equal at each ex- 

 tremity ; columella with a distinct internal keel: 

 length O'-^o, breadth 0'18. Found at Panama by 

 Mr. Cuming. Conch. III. Ci/pra'athe, f 61. 



