114 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Lora surana Dali, 1919 
Proceedings of the United States National Museum, 56:45; PI. 14, fig. 6. 
Shell thin, white, small, with about six whorls, the nucleus defective, 
the suture distinct; anal fasciole extending from suture to a cord which 
forms a shoulder to the whorl, retractively loop-wrinkled; axial sculpture 
in front of the shoulder of numerous, low, narrow, sigmoid riblets with 
sub-equal interspaces, obsolete on the base, on the spire crossing the 
whorls; spiral sculpture of somewhat unequal flatfish threads with equal 
or wider interspaces, crossing the shell, not nodulous at the intersections; 
aperture simple, canal short, twisted, developing an evident siphonal fas¬ 
ciole; operculum normal. Height of shell, 9; of last whorl, 6; diameter, 
4 mm. (Dali.) 
Type in United States National Museum, No. 206590. Type locality, 
off Point Sur, California. 
Range. Off Point Sur and Point Pinos, California, in 292-398 
fathoms. 
Lora monterealis Dali, 1919 
Proceedings of the United States National Museum, 56:46; PI. 15, fig. 9. 
Shell very similar to L. surana, but larger, with the same number of 
whorls, the ribs less numerous, more emphatic, with wider interspaces, 
and a less conspicuous cord at the shoulder. Height of shell, 12; of last 
whorl, 8; diameter, 5.3 mm. (Dali.) 
Type in United States National Museum, No. 226160. Type locality, 
Monterey Bay, California, in 581 fathoms. 
Range. Known only from type locality. 
Lora diegensis Dali, 1919 
Proceedings of the United States National Museum, 56:46; PI. 16, fig. 10. 
Shell white with a pale brownish periostracum and five shouldered 
whorls, the nucleus eroded; suture distinct, anal fasciole narrow, spirally 
threaded, bounded in front by the angle of the shoulder; spiral sculpture 
of on the spire three to five subequal cords with equal interspaces, on 
the last whorl about 14, slightly swollen at the intersections; axial sculp¬ 
ture of (on the penultimate whorl about 24) cord-like riblets, beaded at 
the shoulder, obsolete on the base, the rectangular interstices marked; 
aperture simple, pillar erased, attenuated in front, canal well-marked, 
straight. Height of shell, 8.5; of last whorl, 6; diameter, 4 mm. (Dali.) 
Type in United States National Museum, No. 209421. Type locality, 
off San Diego, California. 
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