60 
3226 M: balthica L. 1758. 
Arctic seas.—Japan.—Monterey, Cal. 
3227 Macoma alaskana Dall, 1900. t 
3228 M: undulata. Gulf of Cal. to S. A. 
3229 M: indentata tenuirostris Dall, 1900. 
San Pedro, Cal. and Santa Barbara Islands. 
8230 M: elongata Hanley, 1844. 
Baja Cal. to Panama, in 14-30 fms. 
3231 M: aurora. Gulf of Cal.—Panama. 
3232 Bartsch, Paul: 
West American mollusks of the genus Cingula. U. S. natl 
mus pr 41:485-488 t 41. 
3233 Cingula martyni. Alaska. 
3234 Variety Scipio. Alaska. 
3235 Cingula alaskana. Alaska. 
3236 Cingula aleutica. Alaska. 
Synonymy:—Onoba aleutica Dall. 
3237 Cingula katherine. Alaska. 
Named in honor of Mrs. Kate Stephens, the discoverer. 
3238 Cingula montereyensis. Monterey, Cal. 
3239 Nodulus cerinellus 
3240 Nodulus asser 
3241 Nodulus kelseyi 
Type locality:—Coronado Islands, Baja Cal. 
3242 Nodulus kyskensis 
Bartsch, U. S. natl mus pr 41:289-291 describes the above, all 
from Alaska, except as noted. 
3243 Bartsch, Paul: 
Recent and fossil mollusks of the genus Alvantia from the West 
Coast of America. l. c. 333-362, t 29-32. List follows. 
3244 Alvania castanella. Alaska. 
3245 Alvania aurivillii. Alaska. 
3246 Alvania cosmia. San Pedro, Cal.—Baja Cal. 
3247 Alvania albolirata. Cape San Lucas. 
Synonymy:—Rissoa albolirata Cpr. 
3248 Alvania lirata. Gulf of Cal. 
Synonymy :—?Rissoa lirata Cpr. 
3249 Alvania trachisma. Monterey, Cal. 
3250 Alwania californica. Monterey, Cal. 
$251 Alvania carpenteri. Neah bay, Wash. 
Synonymy:—Rissoa carpenteri Weinkauff.—Alvania reticu- 
lata Cpr. not Montagu, 1808. 
3252 Alvania perdroana. San Pedro, Cal. 
3253 A: almo. Santa Barbara Islands, Cal. 
$254 A: alaskana, Alaska. 
3255 A: montereyensis. Monterey, Cal.—Alaska. 
3256 A: excurvata. Mazatlan. 
3257 A: electrina Cpr. Cape San Lucas. 
3258 A: rosana. Santa Rosa Island, Cal. 
$259 A: fossilis. San Pedro, Cal. (fossil). 
3260 A: iliuliukensis. Alaska. 
$261 A: purpurea. Monterey, Cal.—Baja Cal. 
3262 A: acutilirata. Monterey, Cal.—Baja Cal. 
3263 A: AXquisculpta Keep. 
Synonymy:—Risoa grippiana Dall. 
Type locality:—San Diego, Cal. 
Range:—Santa Barbara Island, Cal., to Todos Santos bay, 
Baja Cal. 
$264 A: Oldroydz. San Pedro, Cal. 
