S32 REPORT 1863. 



Otia, Page. 



93. Mi/filus (Modiola) Jt-abeUatus. [The northern form of Modiola recta, Com. 



The " specimens from lh3 Gulf of California " must have been M. lira- 

 zilicnsis, intermixed by accident.] 



94. Mytilus trossuhts [is scarcely a variety of M. edulis, which is very abundant 



along the coast, under its usual modifications of form and colour: but 

 generally of small size]. 



95. Pcctcn hericeus, Gld. [ = P. hastatus, Sby. sen.]. 

 97, 246. Terebratitla ( Waldheimici) pidvinata. 



97, 246. Terebratula (Terebratvlla) caurina. 



E. E. Moll. 

 Page. 



113. Planorbis corpulentus is of Say. 



143. Melania plicffera is of Lea. 



436. Anodonta angulata is of Lea. 



206. Scalaria ?australis [is abundantly confirmed from the Vancouver district. 



It should be called Opulia borealis, Gld.]. 

 244. Purpura ostrina, Gld., 'Otia,' p. 225 [is an aberrant smooth var. of P. 



lapillus, Coop., non Ln. ; the normal state being P. saxicola, Val.]. 



The following species, described in the * Otia ' and ' E. E. Moll.' as from * N. 

 Zealand ' and an unknown locality, are really from Puget Sound. 



Otia, Page. 



66, 245. Trochus pupillus, Gld., March 1849: N. Zealand (Ziziphinus in Index) : = 

 Margarita calostoma, A. Ad., 1851. Comp. T. modesius, Midd. [which 

 is, however, =ligatus, Gld., = costatits, Mart. This species is named in 

 the B. M. Col. " M. costellata, Sby.," but is distinct, teste A. Ad. & 

 Mus. Cum.]. 

 64,245. Fusus (Neptunad) incisus, Gld., May 1849. Hab. ? [=Tritonium 



(Fusus) Sitchense, Midd., 184Q,=uccinum dirum, Rve., 1846.] 

 B. A. Eep. 

 Page. 



210. Venus calcarea [is correctly described by Dr. G. as from N. Zealand; 



although quoted by him as the Oregon analogue of V. mercenaria], 



211. Tellina Callfornica, Conr. [ = J/cowa inconspicua]. 



211. Triton fiyrinum [is from Central America, not] Puget Sd. 

 211. Pectcn Fabricii, Phil, [is the young of Islundicm : Dr. G.'s shells are the 

 young of P. ("ruJridus, ?var.") Hindsii]. 



211. Fusus cancellinus. [Dr. G.'s shells are Ocinebra, var. asperaJ] 



212. Purpura lagena, Gld. [MS., is probably saxicola, var.]. 



213. Pecten Townsendi [has not been identified], 



213. Venus ampliata [is believed by Dr. G. to have been first designated by him 



as a species, afterwards proved = riyida (Petitii), var.]. 



44. Middendorff. The synonymy given in Hep. pp. 214-222 is that of 

 the author, not of the writer of the Report, who is by no means prepared to 

 accept the learned doctor's identification of species. The three Chitons quoted 

 with doubt from Tilesius have not been confirmed, as from Kamtschatka, by 

 any other writer. The Ch. giganteus has the aspect of the large Ischnoclriton 

 Magdalensis ; the Oh. muricatus belongs to the LopTiyrus group, which is not 

 known so far north ; and the Ch. setosus has also a S. American aspect. The 

 treatise " De Chitone Giganteo Camtschatico additamentum ad Zoographium 

 llosso-Asiaticum, auctore Tilesio," was read March 19, 1823, and publi.-Ouvl 

 in 1824. It contains a very valuable and (for that period) remarkable account 

 of the anatomy of Chitons, but it does not profess to name and describe species 

 in the modern sense. The names, therefore, had better be dropped. Midden- 

 dorfFs new species were first described in the ' Bulletin de la Classe Physico- 

 3Iathematique de 1'Acade'mie Imperiale des Sciences de St. Petersbonrg,' a 

 work of which few complete copies are known in England, under the follow- 

 ing dates. 



April -20,, 1847: roL vi. No. 8 (total number 128). 



18 



