ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. R75 



92. Physa (Physa) triticea, Lea, Binn. MSS.* California, Cooper. 

 j-93. Physa (Physa) concolor, Hald. Oregon. 



94. Bulinus { (Bulinus) aurantius, Cpr. [=Aplexa, auct. : -v. Maz. Cat. p. 179], = 



Ph. Peruviana, Mke. [non D'Orb.]. Mazatlan, Reigen. 



95. Bidinus (Bulinus) elatus, Gld. Mazatlan, Reigen. 



96. Bulinus (Bulinus) hypnorum, Linn., Hald., C. B. Ad., Chen, et auct.,=P/z. 

 ' elongate, Say, Gld., De Kay,=P7z. elongatina, Lewis. NORTHERN EUROPE, 



ASIA, AMERICA. Puget Sound, Coojw; common at junction of Yukron 

 and Porcupine Rivers, Russ. Amer., Kennicott. Through Brit, and Russ, 

 America, and from Kansas to Washington, D. C.j teste Binn. 



Subfani. Planorbince. 



07. Planorbis (Planorbis') subcrenatus, Cpr. Oregon, Nuttatt. [PPuget Sound; 

 Kennerley.~\ 



98. Planorbis (Planorbis) tumens, Cpr.,=P. tenagophila, Mke. (non D'Orb.),=P, 



affinis, Cpr. [Cat. Prov., non C. B. Ad.] Mazatlan, MeHchera, Reigen. San 

 Francisco, Cooper; Petal uma, 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 ; Kem 

 Lake, Cal., Cooper ; Monterey Co., Trask ; Lagoons, Sacramento Valley, 

 teste Lea. 



101. Planorbis (Helisoma) corptilentus, Say, Hald., De Kay, Gld., Chenu, =P. tri- 



volvis (pars), C. B. Ad. Columbia River, abundant, U. S. E. E. Also 

 Eastern States. 



102. Planorbis (Helisoma) trivolvis, Say, De Kay, Gld., Hald., C. B. Ad., Kiist., Pot. 



& Mich., Yj&tQTi.=BullaJluviatiUs, Say,-}-P/. regularis, Lea, + PL megastoma 

 \-Physaplanorbula, De Kay,+P/. macrostomus+PL corpulentus, Whiteaves, 

 4- PI- kntw, Gld.,-i-P^. trivolvis, vsx.fallax, Hald.,= Cochleat rium-orbiwn, 

 Lister, Petiver. Puget Sd., Campbell; Wright's Lake, Cal., Newberry : Ft. 

 Vancouver, Cooper]; SanTrancisco, Roiuell{S. Diego; Mus. Smiths. ; Horn 

 Lake, teste Lea. Probably extends over whole continent, teste Binn. 



103. Planorbis (Menetus) opercularis, Gld. ; = P. planulatus, Coop. S. Francisco, U. S. 



Expl. Exp. ; Whidby's Is., Cal., Cooper. 



104. Carinifex \\ Newberryi, Lea. Klamath Lake and Canoe Creek, Cal., Newberry \ 



Clear Lake, Cal., Veatch. 



Subfam. Ancylina. 



105. Ancylus Newberryi, Lea. Klamath Lake, Newberry. 

 1 106. Ancylus crasstts, Hald. "W-" [Check-List.] 



107. Ancyhis caurinus, Coop. California, Cooper. 



108. Ancylus patelloides, Lea. S. Francisco, Cooper ; Arroya. San Antonio, Cal., 



Mus. Smith. 

 f!09. Ancylus Kootaniemis, Baird. Brit. Columbia, Lord. 



110. Ancylus fragilis, Tryon. " W." [Check-List.] 



111. Acroloxm Nuttalli, flald. [ Vettetia N. } Binn. in list, May 4th.] Oregon, Nutt. 



112. Gundlachia Calif ornica, 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. 



J Non Bulinus, Sby., olim t ~BuUmus, auct. However clearly Bulimcs, 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 a very finely grown specimen of P. lentus. Dr. 

 Kennerley's shells are intermediate. 



|| Thus in Check-List, Dec. 9th. In that of May 4th, it appeal's as Planorbis N...> in the 

 MS. list as Carinijera. 



11 161 



