314 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. fiS. 



The following specimens have been examined: 



> 1 type. 

 MELANELLA (MELANELLA) COMPACTA Carpenter. 



Plate 37, fig. 3. 



Eulima compacta Carpenter, Rept. Brit. Asa. Sci. 1863, 1864, p. 659; Proc. 

 Gala. Acad. Nat. Sci., vol. 3, 1865, p. 221. 



Shell broadly elongate-conic, straight, poUshed, the surface marked 

 by exceedingly fine lines of growth and scarcely perceptible micro- 

 scopic spiral striations. Whorls flattened, separated by a scarcely 

 defined suture; in fact, the basal portioiT of the preceding whorl 

 shines through the substance of the succeeding turn and causes it 

 at this point to appear as the suture. Periphery of the last whorl 

 well rounded. Base moderately long, well rounded. Aperture 

 quite long, oval, posterior angle acute; outer lip thin, protracted a 

 little anterior to the middle between the posterior angle and the 

 base; inner lip slightly curved, rather thick, reflected over and 

 apprcssod to the base; parietal wall covered by a moderately strong 

 callus. 



Carpenter's type (Cat. No. 1351 7&, U.S.N.M.) was collected by 

 Cooper at San Pedro, Cahfornia. It has lost the first turn; the eight 

 remaining measure — length, 6.8 mm.; diameter, 2.2 mm. Cat. No. 

 322300, U.S.N.M. contains another specimen from Lower California. 

 Two additional specimens collected by Henry Hemphill, Point 

 Abreojos, Lower California, are in Mr. Kelsey's collection, and two 

 more collected by the same gentleman, in Lower California, are in 

 Mrs. Oldroyd's collection. 



MELANELLA (MELANELLA) BALDRA, new species. 



Plate 37, fig. 2. 



Shell of medium size, broadly, regularly conic, bluish-white. The 

 first two whorls woU rounded, the rest almost flat. Decidedly 

 appressod at the summit, polished, marked by exceedingly fine 

 incremental lines only. The basal portion of the preceding whorl 

 shines through the substance of the succeeding turn and gives this 

 the aspect of having a double suture. Sutures faintly marked. 

 Periphery of the last whorl feebly angulatod. Base well rounded. 

 Aperture very small, broadly oval; posterior angle acute; outer lip 



