250 MANGILIA. 



slender, crossed by close elevated revolving lines ; lip rather 

 sharp on the edge but thickened behind it by a stout rib. 



Length, -3 inch. 



Panama. 



Not hitherto figured ; my illustration is from a specimen 

 which was obtained at Panama, and appears to correspond 

 closely with the description. 



M. FORMICABIA, Sowb. PI. 21, fig. 38. 



Shell acuminately oblong, longitudinally strongly ribbed, 

 interstices crossed with very fine striae ; pitch-black within and 

 without. Length, 8 mill. 



Iquiqui, Peru, under stones (Cuming). 



I am not acquainted with the species above so meagrely 

 described. 



M. ORDJNARIA, E. A. Smith. PI. 34, fig. 97. 



Shell subturreted, yellowish brown; ribs 10-11, with strong 

 revolving striae or lirae, here and there larger ; lip thickened. 



Length, 7*5 mill. 



Chili and Peru. 



This will probably prove identical with the last species. 

 Figured from a specimen. 



M. CARPENTERI, Folin. PI. 30, fig. 74. 



Fulvous. Length, 4*5 mill. 



Pacific Ocean, on Meleagrina. 



M. GODPROIDI, Folin. PI. 30, fig. 70. 



Very dark brown. Length, 4 mill. 



Pacific Ocean, on Meleagrina. 

 M. LEUCOLABRATUM, Folin. PI. 30, fig. 72. 



Brown, the upper portion of the whorls light yellowish. 



Length, 3'8 mill. 



Pacific Ocean, on Meleagrina. 



M. IMPERFECTUM, Folin. PI. 28, fig. 43. 



Reddish brown; sinus very shallow. Length, 4-2 mill. 



Pacific Ocean, on Meleagrina. 



M. SULCATA, Carpenter. Unfigured. Described from a single 

 broken specimen, 2 inches long. Mazatlan. 



