ee ama ee 
ON MOLLUSCA OF THE WEST 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 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. 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 absolutely identical. 
24, Petricola robusta. The West Indian form of this species is the Choristodon 
typicum of Jonas; Mus. Cum. 
35. Sphenia fragilis is perhaps S. luticola, Val. 
38. Solecurtus politus ?=S. Carpenteri, Dix. 
40. Should be Semele flavescens, Gld. 
41. Semele ?venusta should be S. bicolor, C. B. Ad. Panama. C. 8S. Lucas. 
46. Should be Sanguinolaria miniata, Gld., as in first Report. 
48. Should be Tellina purpurea, Brod. & Sby., teste type in Mus. Hanl. 
49. =T. pura, Gld., nom. prior. 
54. Quite distinct from Tellina alternata, Say. 
56, Tellina Peburnea proves to be the type of a new generic form, probably 
belonging to Kelliade, viz. Cycladella papyracea. A perfect specimen, since 
found, is in Mr. Hanley’s collection. 
65. Tellidora Burneti is not L. cristata: v. anted, p. 528. 
66. =Strigilla fucata, 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 Lepas-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 
no. 72, D. culminatus, Cpr., is his true carinatus; therefore 71, D. carinatus, 
oe , and of most collections, must stand as D.rostratus, C. B. Ad., teste type- 
valve in Mus. Amherst. The two species uniformly retain their dis- 
tinctive characters. 
78. Should be Mactrella exoleta= Lutraria ventricosa, Gld., from type. 
81. Should be Gnathodon mendicus, Gld. “ 
83. T. Hindsii is distinct, teste Hanl. 
85. T. argentata, Sby., 1835,=T. equilatera, Desh., 1839. 
92-99. The generic name should be Callista. 
* 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” insignis (with “ Pisania” gemmata), 
* Trochus” olivaceus (with “ Imperator” wnguis), “ Cerithium ” montagui (for Cerithidea 
Montagnei), Cytherea “ dione” (for Dione lupinaria), “ Astarte” Dunkeri, “ Cytherea” 
Columbiensis, &c., but inserts Californian species (“ Ziziphinus filosus,’ “ Cardium 
Wutali”) as though from the Gulf, and adds others not known at all in the West Coast 
faunas, as “ Columbella levigata,” “ Patella plumbea,” and “ Chiton reticulata.” All 
these, with such shells as Oliva Oumingii, 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 unbroken 
seal, with the initials of the author. 
