ON MOT-LUSCA OT THE WIST COAST OF NORTH AMERICA. 543 



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

 governments. They have since been offered to the Museums of Harvard 

 University, Cambridge, Mass. ; M'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 wiU. 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 Eeport, pp. 243-264. 



18. Parapholas acuminata is united to P. calva by Tryon, Mon. Phol. 



23. The specimens obtained from Madagascar by Sir E. Belcher in the Voy. Sa- 



marang appear absolutelv identical. 



24. Fetricola robusta. The ^Vest Indian form of this species is the Clioristodon 



typicMm of Jonas ; Mus. Cum. 

 85. Sphmnia fragilis is perhaps <S'. luticola, Val. 

 38. Solecurtus politus ? = S. Carpenteri, Dkr. 



40. Should be Semele Jtavescens, Gld. 



41. Semele fvenusta should be S. bicolor, C. B. Ad. Panama. C. S. Lucas. 

 46. Should be Sanguinolaria miniata, Gld., as in first Report. 



48. Should be TelUna purpurea, Brod. & Sby., teste type in Mus. Hani. 



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



.54. Quite distinct from Tellina alternata, Say. 



56. Tellina fehumea proves to be the type of a new generic form, probably 



belonging to Kelliadee, viz. Cycladella papyracea. A perfect specimen, since 



found, is in Mr. Hanley's collection. 



65. Tellidora Burnett is not L. cristata : v. antea, p. 528. 



66. =Strigilla fucata, Gld. (not mtniata). Specimens received from diiferent 



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



68. The fragment of " ?? Psammohia " is perhaps part of a icpas-valve. 



71 and 72. The names of these shells have been altered and re-altered in Mus. 

 Cuming, as will be seen by comparing Brit. Mus. Maz. Cat., p. 40, with the 

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

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

 Cpr., and of most collections, must stand as D. rostratus, C. B. Ad., teste type- 

 valve m Mua. Amherst. The two species uniformly retain their dis- 

 tinctive characters. 



78. Should be Mactrella exoleta= Lutraria ventricosa, Gld., from tjfpe. 



81. Should be Gnathodon mendicus, Gld. 



83. T. Hindsii is distinct, teste Hani. 



85. T. argeiitata, Sby., 1835,= T. ceqidlatera, Dssh., 1839. 



92-99. The generic name should be Caliista. 



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

 scientific dealers, he advertises a list of species in "which he not merely alters the nomen- 

 clature, giving " Monoceros" cingulatum, " Pollia" insignia (with " Fisania " gemmata) 

 " Trochus" olivaceus (with " Imperator" unguis), " Ceriihium " montagui (for Cerillddea 

 Montagnei), Cytherea "dione" {fov Dione lupinaria), " Astarte" jDunkeri, " Cytherea" 

 Columbiensis, ' &c., but inserts Californian species {" Zisiphinus filosus," "Cardium 

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

 faunas, as " Columbella laevigata" " Patella pVumbea" and " Chiton reticulata" All 

 these, with such shells as Oliva Cumingii, which belong to other regions on the Mexi- 

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

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

 dealers in patent medicines, and guard the accuracy of their works ! With regard to the 

 Mazatlan collections (now scarce), none can be trusted unless they present an unlrolen 

 seal, n ith tlie initials of the author. 



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