598 REPORT 18C3. 



Fnge. 



373. Columbella gausapata, Gld. Str. de Fuca, Sucklcy. 



Columbella valaa [Cooper, non] Gld. [ = Buccinum corrugatum, Rve.] Str. 

 de Fuca, Suckley. 



Natica Leivisii, Gld.,=JV. herculea, Midd. Puget Sound, J. G. Cooper, Suck- 

 ley. "Shell sometimes remarkably globose, sometimes with spire nmcli 

 produced." W. C. "Abundant throughout the N.W. sounds, and col- 

 lected in great numbers by the Indians for food. In summer it cravls 

 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 pullatus, Gld. A variable species. U. Cal., Trask. 



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



Melania silicula, Gld. [ = one of the many vars. of M. plici/era, teste Lea], 

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



Melania Shortaensis, Lea, MS. \_=Shastaensis ) Lea]. Willopah River, J. G. 

 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, Flutmnicola.l 



Turritella Eschrichtii, Midd. [=ittium Jilosum, Gld.]. Puget Sound, Sitct> 

 ley, Gibbs. 



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

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

 where it presents the same varied appearances as our eastern shell." W. C. 

 [To an English eye, it appears quite distinct. L. rudis, Coop., with ,wi- 

 tenebrosa, Midd., and modesta, Phil., are probably vars. of L. Sitkana, Phil., 

 -L. sulcata, Gld.l 



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

 J. G. Cooper. 



Litorina planaxis, Nutt. [=. patula, Gld.]. San Luis Obispo, Dr. Antisell. 



375. Tr chusjilosus, Wood,= T. ligatus, Gld.,= T. modestus, Midd. Str. de Fuca, 



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

 2rocftus Schantaricus [Coop., non] Midd. \_=zMarg. pupilla, Gld.., = M. calo- 



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



Haliotis Kamtschatkana, Jonas. Nootka Sound, Capt. Russell, teste Trask. 

 HaKotis corrugata. San Diego, Cassidy. 

 Ilaliotis splendens. San Diego, Cassidy. 

 Haliotis rufescens. San Diego, Cassidy. 



Haliotis Cracherodii. (None of the rare var. Calif orniensis.} S. Diego, Cassidy. 

 Fissurella nigropunctata, Sby. Two specimens sent by Dr. Trask as coming 



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

 Fissurella aspera } lEsch.,? = cratitia, Gld., ? = densiclathrata, live. \_=Lincolni, 



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



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



376. Nacella instabilis. 



Acmcea pelta. 

 Acmcea persona. 

 Acmcea spectrum. 

 Acmcea scabra. 

 Acmcea ceruginosa. 



The few shells collected of this family are mostly imper- 

 fect, but appear to belong to the species quoted : for 

 the synonymy of which, reference is made to the Bri- 

 tish Association Report. 



j Still fewer materials, among which the quoted species 

 r. I were identified. [The " submarmoreus" both of 



Scurria mitra. 



Chiton muscosus. 



Chiton submarmoreus. 



Chiton tunicatus. T Midd. and Coop., may prove to be Tonicia lineata f 



Chiton lianosus. ) var.] Chiefly from Oregon. 



Helix fidelis, Gray,= Nuttalliana t Lea. Forests W. of Cascade Mountain, 



W. *T., J. G. Cooper. 

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



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



84 



