44 PROCEEDINGS OF THE NATIONAL MUSEUM. ^^l. 5G. 



distinct; axial sculpture of (on the last whorl 14) sigmoid ribs 

 which cross the whorls and reach the canal with subequal inter- 

 spaces; spiral sculpture with narrow channeled grooves with wider 

 flattish interspaces often divided by a central feebler groove, these 

 cover the whole surface; aperture simple, inner lip erased, white; 

 canal short, very slightly recurved. Height of shell, 20; of last 

 whorl, 14; diameter, 9 mm. Cat. No. 222088, U.S.N.M. 



Range. — Unimak Island, Aleutians, eastward to Alitak Bay, 

 Kodiak. 



LORA EQUATORIALIS, new species. 



Plate 13, fig. 2. 



Shell white, rather solid, with about six shouldered whorls, the 

 apex eroded, the suture distinct, slightly constricted and appressed; 

 axial sculpture of about 14 rounded ribs nearly reaching the canaL 

 with subequal interspaces; incremental lines inconspicuous; spiral 

 sculpture of uniform spiral grooves with wider flattish interspaces, 

 cutting the tops of the ribs; aperture short, simple, inner lip callous, 

 canal short, recurved. Height of shell, 13,5; of last whorl. 9; 

 diameter, 6 mm. Cat. No. 97092, U.S.N.M. 



Range. — Coast of Ecuador to Patagonia in 401 to 122 fathoms. 



LORA PRIBILOVA, new species. 



Plate 16. fig. 3. 



Shell white with a strawcolored periostracum and about six 

 roughly sculptured whorls, the apex eroded; suture distinct, axial 

 sculpture of (on the last whorl 16) rounded narrow riblets cross- 

 ing the whorls and obsolete on the base ; spiral sculpture of (on the 

 spire three, on the last whorl four) prominent rounded cords more 

 or less nodose at the intersections with the ribs, and between the 

 cords two or three fine threads and a few finer striae ; the posterior 

 cord forms a shoulder to the whorl; on the canal the cords and 

 threads become more uniform; aperture simple, pillar erased. 

 Height of shell, 12; of last whorl, 8; diameter, 5.5 mm. Cat. No. 

 225573, U.S.N.M. 



Range. — Cape Lisburne, Arctic Ocean, south to Esteros Bay, 

 California. 



LORA INEQUITA, new species. 

 Plate 16, fig. 9. 



Shell yellowish white, thin, of about six moderately rounded 

 whorls, the nucleus eroded; suture distinct; spiral sculpture on the 

 early whorls of two strong cords one on each side of the periphery', 

 between which are first one, later two, and finally four smaller 

 threads ; the posterior cord gives the whorl a slight shoulder ; on the 

 last whorl in front of the anterior cord to the end of the canal are 

 smaller, more or less alternate flattish cords close-set, the inter- 



