532 B^poRT — 18G3. 



Otia, Page. n tr t i . /-i 



93. MytUus (MocUoh) fahcUnfns. [The northern form of Jiori'/oVrer/^, < onr. 



The "specimens from the Gulf of California " must have been M. Bra- 

 zilicnsis, intermixed by accident.] 



94. Mi/tilus trossulus [is scarcely a variety of 31. edvlis, which is very abundant 



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

 generally of small size]. 



95. Pecten her'iceus, Gld. [ = -P- hastatus, Sby. sen.]. 

 07, 246. Terehratula ( WaWieimia) pulvmata. 



97, 246. Terehratula (TerebrateUa) caurina. 



E. E. Moll. 



Page. 



1 1.">. Phviorhis corpulentiis is of Say, 



14.'>. Mclania plicifera is of Lea. 



486. Anodoiita a»f/uhitn is of Lea. 



206. &calaria ?austraUs [is abundantly confirmed from the Vancouver district. 



It should be called Ojudia boreah's, Gld.]. 

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



lapillus, Coop., non Ln. ; the normal state being P. saxicolu, 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, Pagf. 



66, 24-J. Trochus jmpillus, Gld., March 1849: N. Zealand (Ziziphinuf! in Index) : = 

 Marc/arita calostoma, A. Ad., 1851. Conip. T. modesUis, Midd. [which 

 is, hov:e\er, = lic/atus, Lj\d., = costaius, ^lavt. This species is named in 

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

 Mus. Cum.]. 

 QA,2ih. Fusus {Neptunaa) incistis, Gld., May 1849. Hab. ?— [=Tritomum 

 (^Fusus) Sitcheiise, Midd., 16-iO, = L'uccinu}n dirmn, Rve., 1846.] 

 B. A. Rep. 

 I'age. 



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



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



211. Tcllina Cidifornica, Conr. [ = J/«fow;rt inconspicun]. 



211. Triton tif/7-mum [is from Central America, nut] Puget Sd. 

 211. Pecten Fahricii, Phil, [is the young of Islandicm : Dr. G.'s shells are the 

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



211. Fusus cancellinus. [Dr. G.'s shells are Ocinchra, A-ar. aspera.'\ 



212. Purpura hif/ena, Gld. [MS., is probably soxicola, var.]. 



213. Pecten Toivnsetidi [has not been identified]. 



213. J'enus ampUata [is believed by Dr. G. to have been first designated by him 

 as a species, aftei-wards proved = nV/K/a (Petitii), var.]. 



44. Mkldendorff. — The synonymy given in Rep. 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 Ischnochitoii 

 Magdalensis ; the Ch. muricatus belongs to the Lopliyrus group, which is not 

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

 treatise " Do Chitone Giganteo Camtschatico additamentum ad Zoographiara 

 Rosso-Asia ticum, auctore Tilesio," was read March 19, 1823, and published 

 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- 

 Mathematique de I'Academie Imperiale des Sciences de St. Petersbourg,' a 

 work of which few complete coj)ies are known in England, under the follow- 

 ing dates. 



April 20j 1847: vol. vi. No. 8 (total nnmbor 123). 



18 



