ON MOTXUSCA OF THE TTZST COAST OT NORTH AMERTCA. 543 



of students ; but the donations were severally declined by the respective 

 govcrnmon'.s. They have since been offered to the Museums of Harvard 

 University, Cambndj.e, Mass. ; il'Gill University, Montreal, C. E. ; and the 

 Smithsonian Institution, Washington, D. C. ; and accepted on the same con- 

 ditions *. The writer of the Brit. Mus. Catalogue spared no pains in his 

 endeavours to verify the previously described species of Prof. C. B. Adams ; 

 yet a subsequent comparison of types has developed very unexpected coinci- 

 dences. Those who will take the trouble to compare the two diagnoses in the 

 synonyms now given will add one to the many proofs of the uncertainty of 

 the senses in observation, and the inaccuracy of language in description. The 

 following corrections and additions should be made to the list in the British 

 Association Report, pp. 243-264. 



18. Paraplwlaa acuminata is united to P. calm by Tryon, Mon. Pliol. 



23. The spt'cimins obta iied from Madagascar by Sir E. Belcher in the Voy. Sa- 



niarang appear ab-oliitely ideulical. 



24. Petncida robnsta. The West Indian form of this species is the Choristodon 



fi/pician of Jonas ; Mus. Cum. 

 35. Sphcenia fra;/ilis is perhaps -S'. luticola, VaL 

 38. Solecurtus politus ? = <S'. Vaiyenteri, J)lir. 



40. Should be Seinelejfarencetis, (ild. 



41. Se7)ieh' ?renitsta should be S. bicolor, C B. Ad. Panama. C. S. Lucas. 

 40. .Should be Sanf/uinolaria niiniata, Gld., as in first Report. 



A^. Should be TcUitta jmrpurea, Brod. & Sby., teste type in Mus. Hani. 



40. = T. pura, Gld., nom. prior. 



.54. Quite distinct from Tviltna altenwta, Say. 



56. Tel/ina ?ebiir:iea proves to be tlie type of a new generic form, probably 



belonging to Kciliadre, viz. Ciicladclla papyracea. \ perfect spt'cinien, siiice 



found, is in Mr. Ilanlev's collection. 



65. Tellidorn Bitrneti is not L. cristata : t: anteu, p. 528. 



66. =: Stn(/illa fiicata, Gld. (not mmiafa). Specimens received from different 



stations on the Pacific Coast vjuy very greatly in colour and markings. 



68. The fragment of " ?? Paammohla " is perhaps part of a L(pas-\n\\e. 



71 and 72. The names of these shells have bi'en altered and re-alttred in Mus. 

 Cuming, as will be seen by comparing Brit. Mus. Maz. Cat., p. 4-"?, with the 

 note, p. 548, and with the present arrangement. Mr. Ilanley states that 

 no. 72, D.odminatits, Cpr., is his true carinatiis ; therefore 71, D. carinatus, 

 Cpr., and of most collections, nuist stand as I), rostratus, C.B.Ad., te:<te type- 

 valve in Mus. Amherst. The two species uniformly retain their dis- 

 tinctive characters. 



78. Should be MacfrcUa exolcta = Ltdrana ventricosa, Gld., from type. 



81. Should be Gnathodon mettdicxs, Gld. 



8'5. T. Hindsii is distmct, teste Haul. 



85. T. argentatn, Sby., 18:55,= 7. cequilatcra, Desh., 1839. 



92-99. The generic name should be Callista. 



* A few of the duplicate sets having been sent in excliange to one of the principal 

 Bcientific dealers, he advertises a list of species in wliieli he not merely alters the iioiiien- 

 clature, giving " Monoceros" cingtdatum, " Pallia" insifltiis (with " Pisania " gemmata), 

 " Trochus" olivacetis (witii "■ Imperator" ti)igui.i), " Cerilhium " monfafftii (for Cerithidea 

 Montaffnei), Cytherea ^'dioite" {I'or Dioiie liipinaria), " Astarte" Diinkeri, " Cytk^rea" 

 Caltimhiensis, &c., but inserts Californian species (" Zhiphinvs Jllosus," " Cardium 

 Niifali ") as though from the Gulf, and adds others not known at all in the West Coast 

 faunas, as " Columbella Itrriqata" " Patella plumbea," and " Chiton reticulata." All 

 these, with such shells as Olica Cumiiiyii, which belorig to other regions on the Mexi« 

 can coast, would be accredited by the reader on the supiwsed authority of " Carpenter's 

 Catalogue." In these times it appears that naturalists nmst be content to resemble the 

 dealers in patent medicines, and guard the accuracy of their works! With ri'gard to tiie 

 Maziillan colUftions (now scarce), none can be trusted unless they present au uuLrol^a 

 leal, with the iuitiuk of the author. 



29 



