148 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Shell shortly plicately ribbed, transversely striated, angulated next the 
suture; yellowish, back of last whorl clouded with brown, with a brown 
line on the shoulder-angle. Length, 12 mm. (Tryon, Manual of Con- 
etiology.) 
Type in British Museum? Type locality, Gulf of Nicoya, Central 
America. 
Range. Monterey, California, to Gulf of Nicoya, Central America. 
Subgenus Agathotoma Cossman, 1889 
Cytharella fusconotata Carpenter, 1864 
Annals and Magazine of Natural History, series 3, 14:46. 
C. testa parva, satis turrita, tenui, albida; postice linea, seu serie 
macularum, rufo-fusca, interdum altera peripheriali ornata; marginibus 
spirae rectioribus; anfr. nucl. ii., rotundatis, apice mamillato; norm, vi., 
in spira rotundatis, suturis impressis; basi satis rotundata; costis radian- 
tibus circ. ix., acutis, distantibus, antice et postice subobsoletis; toto super- 
ficie spiraliter sulcata, sulculis subdistantibus, undatis, costas superan¬ 
tibus ; apertura subovali, satis elongata, postice valde sinuata; labro acuto, 
dorsaliter costulato, intus haud dentato; labio tenui. Long., .36; long, 
spir., .18; lat., .16 poll. (Carpenter.) 
Type in United States National Museum. Type locality, Cape San 
Lucas, Lower California. 
Range. Laguna Beach, California, to Gulf of California. 
Cytharella janira Dali, 1919 
Plate 19, fig. 7 
Proceedings of the United States National Museum, 56:75; PI. 21, fig. 10. 
Shell small, acute, white or waxen, with a small smooth nucleus of 
about two whorls and five, subsequent, moderately rounded whorls; suture 
distinct, hardly appressed; spiral sculpture of sharp striae with wider 
minutely striated interspaces, over the whole surface, not swollen where 
they pass over the ribs; the whorls are slightly shouldered, there are about 
three or four of the strap-like interspaces on the spire between the shoul¬ 
der and the succeeding suture, behind the shoulder they are less obvious 
and the sculpture is less coarse; on the last whorl the sculpture is quite 
uniform; axial sculpture of nine or ten protractively oblique slightly 
sigmoid ribs which nearly reach the canal and on the spire extend from 
suture to suture; aperture narrow, the anal sulcus wide and shallow; 
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