CLASS GASTROPODA 
105 
sculpture carried on to the last whorl, but no distinct ribs on the early 
whorls as in that species. Height of shell, 11; of last whorl, 8.3; diameter, 
6 mm. (Dali.) 
Type in United States National Museum, No. 214193. Type locality, 
Tillamook, Oregon, in 786 fathoms. 
Range. Known only from type locality. 
Lora tenuissima Dali, 1919 
Proceedings of the United States National Museum, 56:50; PI. 15, fig. 5. 
Shell thin, fragile, acute, whitish, with about six whorls, the nuclear 
whorl eroded; suture distinct, whorls evenly rounded; spiral sculpture of 
fine, even, equal, close-set, minute threads covering the whole surface; 
axial sculpture of almost microscopic, even, regular incremental lines, and 
on the third whorl about 16 small sharp ribs crossing the whorl, with wider 
interspaces and becoming obsolete on the fourth whorl; anal sulcus shal¬ 
low, aperture simple, inner lip erased, pillar attenuated in front, canal 
short, straight. Height of shell, 15; of last whorl, 11; diameter, 6 mm. 
(Dali.) 
Type in United States National Museum, No. 214207. Type locality, 
Chernoffski Harbor, Unalaska Island, Alaska, in 109 fathoms. 
Range. Known only from type locality. 
Lora casentina Dali, 1919 
Proceedings of the United States National Museum, 56 :302. 
Shell small, white, with about five whorls, the nucleus decorticated, the 
whorls with a subangular shoulder in front of the anal fasciole; axial 
sculpture of (on the penultimate whorl about 20) low, thread-like ribs 
extending from the shoulder to the succeeding suture, but more or less 
obsolete on the last whorl; spiral sculpture of faint feeble striae on the 
fasciole, in front of the shoulder of numerous close-set flattish small 
threads, extending uniformly to the canal; anal sulcus shallow; outer lip 
slightly arcuate, inner lip erased; pillar short, straight; canal hardly dif¬ 
ferentiated. Height of shell, 9; of last whorl, 7; diameter, 5 mm. (Dali.) 
Type in United States National Museum, No. 209257. Type locality, 
Station 4538, off Point Pinos Light, Monterey Bay, California. 
Range. Off Point Pinos, California, in 871 fathoms. 
Lora galgana Dali, 1919 
Proceedings of the United States National Museum, 56:303. 
Shell white, under a yellowish periostracum, of six or more obtusely 
shouldered whorls, the apex decorticated, the suture appressed; axial 
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