598 KEPORT— 18C3. 



Pace. 



o73. Cohtmhella gaiisapata, G\di. Str. de Fiica, S/c^-Zr y. 

 „ Columbella valr/a [Cooper, non] Old. \_ = BuccinHm corrnijotmn, Hre.] St?. 



de Fuca, Sueklcy. 

 f, Nutica Leivisii, Gld., = iV! hercitlea, Midd. Piiget Sound, J. G. Cooper-, Sitck- 

 < ley. "■ Shell sometimes remarkably globose, nometinies with spire much 



{(reduced." W. C. " Abundant tbrouohout the N.W. sounds, and col- 

 ected in great numbers by the Indians for food. In summer it crav I3 

 above high-water mark to deposit its eggs " in the well-known sand-coils, 

 which are "beautifully symmetrical, smooth, and perfect on both sides."— 

 J. G. C. 

 „ Potamis puUatus, G]di. A variable species. V . Cal., Trask, 



374. Melania plicifera, Lea. Very common in rivers, W. T., J. G. Cooper 



„ 3Iela)iia silicula, Gld. [ = one of the many vars. of 31. plicifera, teste Lea]. 



In rivers, W. T., Nisqually and Oregon, J. G. Cooper. 

 „ Melania Shorta'ensis, Lea, MS. [_ = Shasta'ensis, Lea]. Willopah Piiver, J. O. 



Cooper. 

 „ Amnicola Nuttalliana, Lea, Phil. Trans, pi. 26. f. 89. Columbia River, J. G, 



Cooper. 

 „ Amnicola seminalis, Hds. U. Cal., Trask. [Belongs to Dr. Stimpson's new 



genus, Fluminicola.~\ 

 „ Turritella Esckrichtii, MiAdi. \_=Bittitim Jilosum, Gld.]. Puget Sound, Suckf 



ley, Gibbs. 

 „ " Litorina rudis, Gld., Stn." [Cooper, non Mont.]. Shoalwater Bay, De 



Fuca, J! G. Cooper, Suckley, Gihbs. " Very abundant on the N.W. coast, 



where it presents the same varied appearances as our ea.^tern shell." — W. C. 



[To an English eye, it appears quite di.stiuct. L. rudis, Coop., with .$ub- 



tenebrosa, Midd., and modesta, Phil., are probably vars. of i. 8itkana, Phil., 



= i. sulcata, Gld.] 

 „ Litorina scutulata, Gld. On rocks, from the head of Puget Sound to De Fuca, 



J. G. Cooper. 

 „ Litorina planajris, Nutt. [=Z. patula, Gld.]. San Luis Obi<po, Dr. Antisell. 



375. IVochus Jilosns, Wood, = 7". lirpitus, G!d.,= J! modedtis, Midd. Str. de Fuca, 



J. G. Cooper; U. Cal., Trask. \=T. costatus, Mart.] 

 „ Iroclius Schantaricus [Coop., nonj Midd. [ = Narf/. pupilla, Gld., = iH. calct- 



stoma, A. Ad.] Str. de Fuca, J. G. Cooper, abundant. 

 „ Haliotis Kaintschatkana, Jonas. Nootka Sound, Capt. Uussell, teste Trask. 

 „ Haliotis corruyata. San Diego, Cassidy. 

 „ Haliotis splendens. San Diego, Cassidy. 

 „ Haliotis ritfescens. San Diego, Cassidy. 



„ Haliotis Crncherodii. (None of the rare var. Californiensis.') S, Diego, Cassidy. 

 „ FissNrelfa niyropunctata, Sby. Two specimens sent by Dr. Trask as coming 



from Cataiina Is., U. Cal. [Pimported]. 

 „ Fiisurella aspera,JLsc\\.,? =cratitia, (jild., ?=densiclathrata, Pve. [^ = Lincolm, 



Grav. This is certainly Gould's species from type ; but Reeve's shell ia 



southern, and appears distinct.] U. Cal., Lieut. Trowbridye. 

 876. Nacella instabilis. 



Acinrea pelta. 

 Acmfpa persona. 



The few shells collected of this family are mostly imper- 



- . , feet, but appear to belong to the species quoted: for 



Acmcea snectntm. > j.i ' ^^ c ^ • \ f • j \ ^^ t^ ■ 



. ' , I the synonym V 01 which, reierence is made to the Bri- 



/Irnia'a srnhrn . , i *. • -n 



tish Association Keport. 



Acmcea scabra. 



Acmesa eeruyinosa. 



Scnrria mitra. 



Cliiton mascosus. \ Still fewer materials, among which the quoted species 



Chiton siihmarmoreus. ! were identified. [The " s»binar)noreus," both of 



Cliiton tunicatus. t Midd. and Coop., may prove to be Tonicia lineata. 



Chiton liynosus. ) var.] Chiefly from Oregon. 



Helix fidelis, Grn\,= Nuttalliana, Lea. Forests W. of Cascade Mountain, 



W. T., J. G. Cooper. 

 Helix lownsendiana, Lea. " Common in open prairies near the sea, but not 



near Puget Sound," W. T., J. G. Cooper, 



84 



