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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 5J 



rouaded, separated by a somewhat constricted suture, the remain- 

 der, moderately rounded, a little more so on the convex side than 

 the concave. Summit of the whorls appressed, separated by a very 

 ill-defined suture. The posterior termination shows conspicuously 

 through the substance of the shell on .the inside of the whorls and 

 appears as a false suture. Last whorl somewhat inflated. Periphery 

 moderately protracted. Base rounded. Aperture ovate; posterior 

 angle acute; outer lip protracted at the periphery; inner lip short, 

 dightly curved, reflected and appressed to the base; parietal wall 

 covered by a moderately thick callus. 



The varices of this species practically form a continuous oblique 

 line from the aperture almost to the tip. 



The type and fire additional specimens (Cat. No. 203665, U.S.N.M.) 

 were collected by Mr. Gripp at Ne^^nport, California. The type has 12 

 whorls and measures — length, 8 mm.; diameter, 2.6 mm. 



MELANELLA (BALCIS) TAEAVALI, new species. 



Plate 42, fig. 2. 



Shell very minute, bluish- white, doubly flexed; the anterior portion 

 turned to the right, the tip flexed backward. The first three whorls 

 well rounded, separated by a well impressed suture. The rest almost 

 flat, separated by an inconspicuous suture, marked by exceedingly 

 fine incremental lines only. Tlie last whorl inflated. Periphery 

 well rounded. Base short, well rounded. Aperture broadly oval; 

 posterior angle acute; outer lip thin, slightly protracted in the mid- 

 dle; inner lip short, slightly curved, reflected over and appressed to 

 the base; parietal wall covered by a rather thick callus. 



The type (Cat. No. 215779, U.S.N.M.) was collected by Mi\ Hemp- 

 iiill at Point Abreojos, Lower California. It has nine whorls and 

 measures— length, 1.2 mm. ; diameter, 0.3 mm. Two additional speci- 

 mens from the same locahty are in Mrs. Oldroyd's collection. 



