ON MOI.LUSCA OF THE VTYST COAST OF XORTH A:\rERTCA. 543 



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

 governmcn'LS. They have since been offered to the Museums of Harvard 

 University, Cambrid2,e, 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 wiU 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 lleport, pp. 243-264. 



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



23. The specimens obta'ned from Madagascar by Sir E. Belcher in the Voy. Sa- 



niarang appear ab-olutely identical. 



24. Petricola rohusfa. The West Indian form of this species is the Choristodon 



Ujpicum of Jonas ; Mus. Cum. 

 o5. Sphcenia fragUis is perhaps *S'. lidicola, Val. 

 38. SoJeciirtus politits ? = »S'. Carpenteri, Dkr. 



40. Should be Semeh farescens, Gld. 



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

 40. Should be SaDC/uinolaria miniatn, Gld., as in first Report. 



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



49. = T. pwa, Gld., noni. prior. 



54. Quite distinct from TcUina alternata, Say. 



56. TcUina ?eburnea proves to be the type of a new generic form, probnbly 



belonging to Kel/iadcp, viz. Ci/cladella jMpi/racea. A perfect specimen, since 



found, is in Mr. Hanlev's collection. 



65. Tellidora Biirneti is not L. cristuta : v. anted, p. 528. 



66. =Stn'f/illa faeata, Gld. (not mmiata). Specimens received from different 



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



68. The fragment of " ?? Psammobia " is perhaps part of a i(';jrt5-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. 43, with the 

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

 110.72, D.cabninaf as, Cpr., is his true citrinatus; therefore 71, D. carinatus, 

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

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

 tinctive characters. 



78. Should be MactrcUa eroleta= Lntraria ventricosa, Gld., from t^^e. 



81. Should be Gnathodon mouliais, Gld. 



83. T. Hindsii is distnict, teste Hani. 



85. T. argentata, Shy., 1835,= T. ceqidlatera, De.sh., 18-39. 



92-99. The generic name should be Callista. 



* A few of the duplicate sets having been sent in exchange to one of the i^rincipal 

 scientific dealers, lie advertises a list of species in whicli he not merely alters tlie nomen- 

 clature, giving " Monoceros" cingulatum, " Follia" insignis (with " Pisania " genimata), 

 " Trochus" olivaceus (with '^ Imperator" unguis), " Ceriihium '" montagui (for Cerithidea 

 Montagnei), Cytherea " dione" {{or Dione lupinaria), " Astarte" Diinkeri, " Ci/therea'* 

 Colnmhiensis, &c., but inserts Californian species (" Zhiphinus Jilosns,'" ^'Cardium 

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

 faunas, as " Coliunhella Icevigata" " Patella plmnhea," and " Chiton reticulata." All 

 these, witli such shells as Oliva Cumingii, which belong to other regions on tiie Mexi- 

 can coast, would be accredited by the reader on the supposed 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 regard to the 

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

 seal, with the initials of the author, 



29 



