327 
328 
329 
330 
331 
332 
333 
334 
335 
336 
337 
338 
339 
540 
341 
342 
343 
344 
345 
346 
347 
GEOGRAPHICAL 
Pupilla Rowellii Vewce. 
Near Oakland, Alameda Co. 
Pedipes unisuleata Cp. 
San Pedro, Cal.; on beach. 
Pedipes lirata W. G. Binn. 
Cape St. Lucas, Lower Cal.—San Diego ¢ 
Melampus olivaceus Cpr. 
Salinas River, Cal., to Mazatlan. 
Limnea stagnalis Linn. 
tuby Valley, Utah, north--cireumboreal. 
Limnea lepida Gid, 
“Take Vancouver,’ Wash. Ter. ; Oregon. 
Limnophysa Rowellii 7ryon. 
Near San Francisco. 
Limnophysa palustris J/ul/. 
Near San Francisco—cirecumboreal. 
Limnophysa proxima /vu. 
Alameda County, Cal., to Oregon. 
Limnophysa Gabbii 7yon. 
Clear Lake, California. 
Limnophysa Adeline Tryon. 
Near San Francisco, California. 
Limnophysa Traskii 7ryon. 
Mountain Lake, San Francisco Co., Cal. 
Limnophysa umbrosa Suy. 
Near San Francisco, Cal. ; Eastern States. 
Limnophysa bulimoides Lea. 
San Francisco, north and east; S. Diego ? 
Limnophysa solida Leu, 
Willamette River, Oregon. 
Limnophysa ferruginea /al:d. 
“Oregon.” (=humilis Say.?) 
Limnophysa humilis Swy. 
Alameda County, Cal.; Eastern States. 
Limnophysa Sumassi Buird. 
Oregon to British Columbia. 
Limnophysa Binneyi 77yon. 
“Hell Gate River,’’ Montana. 
Limnophysa Nuttalliana Zea. 
San Francisco to Oregon. 
Limnophysa Tryonii Leu. 
Alameda County, California. 
Limnophysa obrussa Sv. 
“ Oakland,” Cal. ; Eastern States. 
CATALOGUE 
