OF CONCHOLOGY. 299 



DESCRIPTIONS OF NEW SPECIES OP MELANIID.E 

 AND MELANOPID.2E. 



BY GEOEGE W. TRY ON, JR. 



1. Melania minuta, Tryon. — t. 20, fig. 3. 



Description. — Elevated-conical, spire acute; whorls 7, very 

 convex, slowly increasing in size ; suture deeply impressed ; 

 aperture small, ovate, well rounded below, columella incurved. 

 Bright brown, obscurely strigate with red. 



Dimensions. — Height 8, diam. 3 mill. 



Habitat.— Tahiti, (Sr. Patricio Ma. Paz.) 



My Cabinet. Cabinet of Sr. Paz, of Madrid, Spain. 



Observations. — This is one of the smallest species of the 

 genus. Fortunately, many of the specimens communicated to 

 me possess opercula, thus enabling me to decide positively the 

 generic position. II. minuta has been used by Dr. Brot as a 

 substitute for M. exigua, of Morelet, supposing the latter name 

 to be pre-occupied by Mr. Conrad for a California species; but 

 as M. exigua, Conrad, does not belong to the genus Melania at 

 all, M. exigua, Morelet, will stand, and I am at liberty to use 

 the name minuta. 



2. Melania Oualanensis, Pease MSS. — t. 20, fig. 4. 



Description. — Shell elevated, conical, rather thick ; spire 

 elongate, apex truncate, suture deeply impressed ; whorls 5, 

 (remaining), covered with revolving close striee, and crossed by 

 distinct distant plications, of which there are about twenty on 

 the last whorl, becoming more prominent just below the su- 

 ture ; aperture moderate, narrow-ovate, rounded below. Dark 

 horn-color, with narrow zig-zag red flames. 



Dimensions. — Height 28*5, diam. 12 mill. 



Habitat.— Oualan I., (W. H. Pease.) 



My Cabinet. Cabinet of Mr. Pease, of Honolulu, Sandwich 

 Islands. 



