80 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
pervious; -canal produced, narrow, slightly recurved. Height of shell, 14; 
of last whorl, 9; diameter, 5.5 mm. (Dali.) 
Type in United States National Museum, No. 212332. Type locality, 
Station 3346, off Tillamook Bay, Oregon, in 786 fathoms. 
Range. Off Tillamook, Oregon, to Gulf of California. 
Cryptogemma chrysothemis Dali, 1919 
Plate 19, fig. 1 
Proceedings of the United States National Museum, 56:31; PI. 11, fig. 2. 
Shell short-fusiform, white, with a pale olive periostracum, the tip 
eroded, with six or more subsequent whorls; the suture distinct, the anal 
sulcus shallow, somewhat removed from the suture, the fasciole narrow, 
depressed; spiral sculpture of a low blunt peripheral keel, somewhat 
undulated on the earlier whorls with occasional traces of minor spiral 
threads; the entire surface is more or less obliquely granulose or minutely 
vermiculate; axial sculpture only of feeble incremental lines; outer lip thin, 
sharp, produced; inner lip erased; pillar short, obliquely attenuated in 
front; canal short, wide, not recurved; axis not pervious. Height of 
(eroded) specimen, 16.5; of last whorl, 11 ; diameter, 7.5 mm. (Dali.) 
Type in United States National Museum, No. 208908. Type locality, 
Station 4405, between San Clemente and Santa Catalina Islands, Califor¬ 
nia, in 654-704 fathoms. 
Range. Between Clemente and Catalina Islands, California. 
Cryptogemma adrastia Dali, 1919 
Plate 11, fig. 2 
Proceedings of the United States National Museum, 56:33; Pi. 19, fig. 2. 
Shell white, with a thin, pale olive periostracum, the apex invariably 
eroded, and the subsequent whorls, eight or more, polished and faintly 
showing incremental lines; suture inconspicuous, the anterior margin 
sometimes raised like a small cord; spiral sculpture of a strong, sometimes 
nodulous or undulated peripheral keel, rather nearer the succeeding suture 
than to the preceding one, the latter space occupied by the slightly concave 
anal fasciole; axial sculpture only of arcuate incremental lines; base 
rounded; aperture narrow, outer lip thin, sharp, produced, internally 
smooth; anal sulcus wide and shallow, with no parietal nodule; inner lip 
erased; pillar smooth, twisted, not pervious, attenuated obliquely toward 
the rather long, slightly recurved canal. Height of decollate specimen, of 
about 5 whorls, 16; last whorl, 11.7; diameter, 6.25 mm. (Dali.) 
