668 



47. Artemis livida (pi. cxlii. f. 55, copied), Philippi, Ab- 

 bild. Oyih. pi. v. f. 4. A. Orbignii, var.'P Ed. 



Art. testa yi. Orbignii simili, sed magis compressa, postice an- 

 gulata, striis magis confertis, ad latera angulatim terminatis. 



It is not easy either to identify this species, or to distinguish 

 from it A. aspera, Reeve, excepting in colour. It is like A. Or- 

 bignii in some respects, but is natter, more angular, and with the 

 striae more numerous and raised at the sides. 



Locality unknown. 



48. Artemis aspera (pi. cxliii. f. 56), Reeve, Conch. Icon. 

 Art. pi. ix. f. 49. 



Art. testa, suborbiculari, tumida, pallide fulva, concentrice 

 striata, striis elevatis creberrimis, acutis, ad latera paucis elevati- 

 usculis ; area ligamenti excavata ; lunula parva ; umbonibus pro- 

 minulis. 



Of a dull whitish-brown colour, very finely and sharply striated, 

 with the strise slightly elevated at the sides, particularly at the 

 edge of the ligamental area, which is peculiarly canaliculated, 

 with the inner edges slightly raised ; the umboes are produced. 



Manilla ; in sandy mud at low water. Owning. 



49. Artemis canaliculata (pi. cxliii. f. 58), Sowerbi/,jun. 



Art. testa parva, tumida, sordide alba, minutissime striata, 

 striis ad latera elevatiusculis ; umbonibus prominentibus, acutis ; 

 area, ligamenti duplicate. 



Striated like A. biscocta and A. aspera, and remarkable for the 

 canaliculated appearance given to the ligamental area by the ele- 

 vation of the dorsal edges. 



Manilla, island of Luzon. Cuming. 



50. Artemis scabriuscula (pi. cxliii. f. 59), PhiUppi, Ab- 

 bild. Cyth. pi. v. f. 2. 



Art. testa suborbiculari, latiore quam alta, albida, postice sub- 

 angulata, tenuissime striata, striis ad latera acute laminatis ; area 

 ligamenti lata, excavata, ad marginem serrata ; lunula impressa. 



Rather transversely tending to oval, with numerous, close, very 

 fine ridges, which, at the sides, are produced into lamina} ending 

 in points, so as to serrate the margin of the ligamental area, 

 which is broad and excavated. 



Locality unknown. 



