224 



PROCEEDINGS OF THE ACADEMY OF 



[June, 



more slender shell, with the sutural margin narrower, and the spire 

 less bent. 



Eulima venusta Pease, from the Paumotus, is very closely related 

 to aciculata, but perfect specimens have a larger apex; the outer lip, 

 also, is somewhat more arched forward. 



So far as I know, there is no reliable record of Eulima adcula 

 (Gld.) from the Hawaiian group. Tryon's record seems to have 

 pertained to Eulima aciculata Pease, of Sowerby, which he appears 

 to have thought was not the true aciculata of Pease, but was a 

 synomym of acicula. This opinion seems to me without adequate 

 foundation. Try on has recorded two synomyms of E. acicula: 

 Eulima vitrea A. Ad. (Fiji) and Leiosiraca pyramidaUs Sowb. (Hab. 

 unknown.) From the figures, these appear to be rightly placed. 



Mr. Thaanum's specimens of M. aciculata from Hilo, Hawaii 

 (No. 82228 and 108472 A. N. S.), differ from the Pease examples 

 by being a little more robust, with the early whorls slightly more 

 attenuate (fig. lie). 



Length 9, diam. 2.75, length of aperture 2.3 mm.; 16 whorls 

 (PI. XIV, fig. 8a). 



Length 8.8, diam. 2.75, length of aperture 2.5 mm. (PI. XIV, fig. 8). 



The aperture is narrowly ovate. Outer lip runs rather far forward and is 

 retracted again at the base. 



Length 10.9, diam. 3.1 mm.; length of aperture 3 mm.; 14 whorls. 



It resembles M. aciculata (Pse.), but the margin below the suture is narrower, 

 the last whorl is wider, and especially, the apex is larger. 



. Viti Islands. Type No. 19773, collected by A. Garrett. Others from the 

 same source are in the collection received from Pease. 



/ 



Fig. 12o. b. Melanella pisorum. Fig. 12c, Mucronalia nilidula. 



