42 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 56. 



LORA HEALYI, new species. 



Plate 16, fig. 8. 



Shell white, more or less discolored by ferruginous red (probably 

 adventitious) with five and a half rounded whorls, a subglobular 

 smooth nucleus forming one and a half of these; spiral sculpture of 

 (on the penultimate whorl 6 or 7, on the last whorl about 14) coarse 

 rather irregular cords with narrower channelled interspaces, the 

 cords more or less nodulated by incremental lines and on the spire 

 by obscure ribbing; suture distinct, aperture narrow, simple; pillar 

 white, erased, canal short, straight. Height of shell, 15; of last 

 whorl, 10; diameter, 7 mm. Cat. No. 223908, U.S.N.M. 



Range. — Arctic Ocean north of Bering Straits. 



Named in honor of the late Capt. M. A. Healy, of the United States 

 Hevenue Marine, a frequent contributor to the national collection. 



LORA POPOVIA, new species. 



Plate 14, fig. 8. 

 Shell white with straw-colored periostracum, six shouldered 

 whorls, a subglobular small nucleus, and distinct suture; spiral 

 sculpture of (on the upper whorl four or five) rounded threads, be- 

 tween the shoulder and the succeeding suture, the threading obsolete 

 on the last whorl or reduced to fine striation on the base and canal; 

 axial sculpture on the spire of about 16 short rounded ribs swollen 

 at the shoulder and reaching the succeeding suture, but fainter on the 

 last whorl and absent from the base; aperture simple, pillar white, 

 erased, canal short, straight. Height of shell 13; of last whorl, 8: 

 .diameter 5.5 mm. Cat. 220883, U.S.N.M. 



Range. — Bristol Bay, Bering Sea, to Monterey Bay, California. 



LORA TENUILIRATA Dall. 



Plate 15, fig. 4. 

 Bcla tcnuilirata Dall, Amer. Journ. Conch., vol. 7, p. 98, Nov. 1871. 

 ? + Bela simplex G. O. Saks, 1878, not of Middendorff, 1849. 

 The original specimen of this species was quite young. I now 

 figure the adult. 



Range. — Point Barrow, Arctic Ocean, to the Shumagin Islandf., 

 Alaska. 



LORA TENUILIRATA CYMATA. new variety. 



Plate 16, fig. 4. 



Shell resembling typical tcnuilirata, but with a higher and more 

 acute spire, and with 20 or more narrow axial riblets on the last 

 whorl, obsolete on the base, and a single spiral thread at the shoulder. 

 Height, 23 ; of last whorl, 17 ; diameter, 10.5 mm. Cat. No. 226186, 

 U.S.N.M. 



Range. — Nunivak Island, Bering Sea, to the Shumagin Islands, 

 Alaska. 



