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. rormicaRgtia, Sowb. Pl. 21, fig. 38. 
Shell acuminately oblong, longitudinally strongly ribbed, 
interstices crossed with very fine striz; 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. orprnariA, E. A. Smith. Pl. 34, fig. 97. 
Shell subturreted, yellowish brown; ribs 10-11, with strong 
revolving strie or lirz, 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. CarpenTeERi, Folin. Pl. 30, fig. 74. 
Fulvous. Length, 4°5 mill. 
Pacific Ocean, on Meleagrina. 
M. Goprroip!, Folin. Pl. 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. Pl. 28, fig. 43. 
Reddish brown; sinus very shallow. Length, 4:2 mill. 
Pacific Ocean, on Meleagrina. 
M. sutcata, Carpenter. Unfigured. Described from a single 
broken specimen, 2 inches long. Mazatlan. 
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