120 MITRA. 



M. coNTRACTA, Swaiiison. PL 35, fig. 53. 



Yellowish white, clouded with chestnut, engraved with revolv- 

 ing strife. Length, 1-1 '5 inches. 



Red Sea; Philippines; Polynesia. 



The peculiar form of this species will at once distinguish it 

 from its neighbors. It is narrower and without the elevated 

 ridges of M. chrysodoma^ and approaches the genus Mitroidea 

 in shape. It has been usuall}^ known as M. abbafis, Chemn., but 

 he was not a binomial author, so that I have preferred Swainson's 

 later name. 



M. LATRUNCULARiA, Reeve. PI. 35, fig. 59. 



Whitish, obscurely banded, and tessellated with chestnut. 

 Length, 1-1*25 inches. 



Cape of Good Hope (Sowerby); Viii Isles (Garrett). 



M. soLiDA, Reeve. PI. 35, fig. 57. 



Fulvous bajj^-color, with irregular white spots in a series upon 

 the peripher}', and another at the suture. Length, 18 inches. 



Australia. 

 M. PiGRA, A. Ad. PL 35, figs. 58, 60. 



Olive-brown, tessellated with white around the suture ; aper- 

 ture brown within. Length, 1*5 inches. 



Australia. 

 M. CALTGINOSA, Recve. PL 35, fig. 61. 



Whitish, covered with a black epidermis. Length, 1-4 inches. 



Habitat unknown. 

 M. SACERDOTALis, A. Ad. PL 35, fig. 62. 



Chestnut-brown, with a light band at the suture and another 



on the peripher}^, and longitudinal dark chestnut streaks. 



Length, 3 inches. 



Australia. 

 M. Chinensis, Gray. PL 36, figs. 65, 66. 



Pale brown under a brownish black, smooth epidermis ; upper 

 whorls and base of body-whorl with revolving striaj. 



Length, 2-25-3'5 inches. 



China. 



Sowerb3^'s figure of this species (fig. 65) is much larger than 

 the type, and diflfers in having some obscure darker longitudinal 

 streaks and a light sutural line ; it is not very different from M 

 sacerdotalis. 31. obliqua, Lesson, an unfigured species, is com- 



