ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 675 
92. Physa (Physa) triticea, Lea, Binn. MSS.* California, Cooper. 
+93. Physa (Physa) concolor, Hald. Oregon. 
94, Bulinus t (Bulinus) aurantius, Cpr. |=Aplexa, auct.: v. Maz. Cat. p. 179],= 
Ph. Peruviana, Mke. [non D’Orb.]. Mazatlan, Regen. 
95. Bulinus (Bulinus) elatus, Gld. Mazatlan, Reigen. 
96. Bulinus (Bulinus) hypnorum, Linn., Hald., C. B. Ad., Chen. et auct.,=Ph. 
elongata, Say, Gld., De Kay,= Ph. elongatina, Lewis. NortTHERN Evropr, 
Asta, AMERICA. Puget Sound, Cooper; common at junction of Yukron 
and Porcupine Rivers, Russ. Amer., Kennicott. Through Brit. and Russ, 
America, and from Kansas to Washington, D. C.; teste Binn. 
Subfam. Planorbine. 
97. Planorbis (Planorbis) subcrenatus §, Cpr. Oregon, Nuttall, [?Puget Sound, 
Kennerley. | 
98. Planorbis (Planorbis) tumens, Cpr.,=P. tenagophila, Mke. (non D’Orb.),=P. 
affis, Cpr. | Cat. Prov.,non C. B. Ad.] Mazatlan, Melchers, Reigen. San 
Francisco, Cooper; Petaluma, teste Gld. 
99. Planorbis (Planorbis) vermicularis, Gld. 
100. Planorbis (Helisoma) ammon, Gld., =P. Traskei, Lea. Klamath Lake, Or. 
and Rhett Lake, Cal., Newberry. Ocogo Creek, Cal., Williamson; Kern 
Lake, Cal., Cooper; Monterey Co., Trask; Lagoons, Sacramento Valley, 
teste Lea. 
101. Planorbis (Helisoma) corpulentus, Say, Hald., De Kay, Gld., Chenu, =P. tri- 
volvis (pars), C. B. Ad. Columbia River, abundant, U. S. E. EZ. Also 
Eastern States. 
102. Planorbis (Helisoma) trivolvis, Say, De Kay, Gld., Hald., C. B. Ad., Kiist., Pot. 
& Mich., Katon= Bulla fluviatilis, Say,+ Pl. regularis, Lea,+ Pl. megastoma 
+ Physa planorbula, De Kay, + Pl. macrostomus+ Pl. corpulentus, W hiteaves, 
+ Pi. lentus, Gld.,+ Pl. trivolvis, var. fallax, Hald.,= Cochleat rium-orbium, 
Lister, Petiver. Puget Sd., Campbell; Wright’s Lake, Cal., Newberry; Ft. 
Vancouver, Cooper}; San Francisco, Rowell; S. Diego ; Mus. Smiths. ; Horn 
Lake, teste Lea. Probably extends over whole continent, teste Binn. 
103. Planorbis (Menetus) opercularis, Gld.,= P. planulatus, Coop. 8, Francisco, U.S. 
l. Exp.; Whidby’s Is., Cal., Cooper. 
104, Carinifex || Newberryi, Lea. Klamath Lake and Canoe Creek, Cal., Newberry; 
Clear Lake, Cal., Veatch. 
Subfam. Ancyline. 
105. Ancylus Newberryi, Lea. Klamath Lake, Newberry. 
7106. Ancylus crassus, Hald. “W.” [Check-List.] 
107. Ancylus caurinus, Coop. California, Cooper. 
108. Ancylus patelloides, Lea. S. Francisco, Cooper; Arroya, San Antonio, Cal., 
Mus. Smith. 
$109. Ancylus Kootaniensis, Baird. Brit. Columbia, Lord. 
110. Ancylus fragilis, Tryon. “W.” [Check-List.] 
111. Acrolovus Nuttalli, Hald. { Velletia N., Binn. in list, May 4th.] Oregon, Nutt. 
112. Gundlachia Californica, Rowell. 
* So in first printed list and in two MSS.; but in Check-List of Dec. 9, Ph. Troos- 
tiana, Lea, is assigned to the West, instead of this species. The MSS. are probably 
correct. 
t Non Bulinus, Sby., olim,=Bulimus, auct. However clearly Bulinus, Binn., may be 
right according to the antiquaries, it is far too like Bulimus, which has taken complete 
possession of the entire malacological world, to be allowed a resurrection in the same 
order. Surely burial for a given number of years ought to be allowed as evidence of 
death, especially if the infant-name scarcely even breathed the air of use, and its resur- 
rection would breed malaria among terms thriving in the vigorous manhood of universal 
acceptance. 
§ It is quite possible that this may prove avery finely grown specimen of P. lentus. Dr. 
Kennerley’s shells are intermediate. 
|| Thus in Check-List, Dec. 9th. In that of May 4th, it appears as Planorbdis N.; in the 
MS. list as Carinifera. 
2x2 
