ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. oSl) 



Page. No. PI. Fig. 



, . 34 . . . . Cishda trochlem-iU, Pfr. 



3^ , , . . Chotdroponid n/hiciriirlinn, ^forelet. 



So .. .. 3I('(/(ili)n(isf onia. •ii)»H/(tcr/<m, MovAet. Descnhedfvom.Cost&'Rica. 



37 . . . . Ci/c/opJiorus punderosus, Pfr. 



38 . . . . Ciiclopliorus trmiduciduH, Sby. 

 233 39 26 11. Macroceramus pt>U/striptus,n.s. 



40 26 9, 10. Ilelicinn Sfilcuii, n. s. Lake H. turhvmta, AViegm. Mexico. 

 . . 41 . . . . Hi'Ucina amo'/ia, Pfr. 

 , . 42 . . . . Helicuia Oweinana, Pfr. 



. . 43 . . . . Hc/icimi merdif/era, Sailed Described from Nicaragua. 

 , . 44 . . , . Helicinu Lindeni, Pfr. 



. . 45 . . . . Helicinu chrijseis, n. s. Mountain forests of Vera Paz. 

 ,.46,47,48. . .. Paluditiella, 3 species apparently undescribed. 

 . . 49 . , . . Pachycheilits corviuus, Morelet. Larger than in previously 

 noted habitats. 



The vol. for 1863 contains Dr. Baird's descriiitions of new species from 

 the Vancouver collections of Lord and Lyall, M^hich wDl be tabulated, in-jra, 

 par. 103 ; and the Review of Prof. Adams's Panama shells, which has already 

 been quoted. 



60. Sowerhy, ' Conchological Illustrations,^ 1841. — The following are addi* 

 tional localities or synonyms: — 



No. Fig. 



2 46. Cardium Indicum [is exotic ; closely allied to C. cosfafinnl. 



66 18. Cardium macidattim, Sby. Cal., &c. = C. macidosion, Sby. fpreoo ). 



90 .. Murex imperialis, Swums. Cal. =ill/'. ^owhtoj, var. Gmel. [Perhaps dis- 



tinct ; may be the W. I. analogue of bicolor.'] 



91 38. Mitrex erythrostoma, Swains. Aeapulco. [? = bicoIor, var.] 



45 102. Cyprcfa albuf/inosa, Gray. Mexico, Ceyion. [The Ceylon shell is pro- 

 bably ^Jo?-«r/rt, sp. 44.] 

 1 45. Erato seabriuscula, Gray. Aeapulco. =MargineUa cyprcfola, Sby. 



62 40. FissureUa Lincolni, Gray, MS. [An extremely fine specimen ^ supposed 

 " unique ") of Glyphis aspera, Esch. Mr. Lincoln is also quoted for 

 the " finest of the four known specimens " of Lucapina cremdata, sp. 10, 

 f. 31, 38: /'Monterey."] 



54 [Erase this line in the former Report, and substitute as follows : — ] 



55 Bulimiis itnifasciatus, Sby. Galapagos. 



* Thesaurus Conchi/Iiorum,' G. B. Sowerby, tfec. To the list in Rep. pp. 

 288, 289, may be added:— 



Page. PI. Pig. 



61 12 23. Pecten drcidarts, Sby. Cal., St. Vincents. [The name may 



stand for the W. Indian shell, the Califomian being P. ven- 

 fn'cosMS, jun.] 

 f57 12 20, 21. Pecf en latiatmtiis, Conr. Cal. +" P. mesofimei-is, Conr.^^ 

 261 59 lU. Tellina sincera, Uml N.W. Coast America. [ = Panama.] 

 769 165 36-38. Ve/m-upis cylindracea, Besh. Ca\., = Pctricola Qdifunu'ca, ColIT., 



+ P. arcuata, Desh., + P. sidiylobosa, Sby. 

 865 179 5Q-77. Ce7-ith'um ocellaf inn, Bmg. Gu'fCal., &c. =C. irrorafinn[C. 

 B. Ad. (Gld. MS.) ; non] Gld. E. E.,= C. interrujitum [C. B. 

 Ad. : non Mke, nee] Gld. 

 Sp. Fig. 



47 43,44. Conus* interrupius, Mawe, Wood. [Slender, coronated sp.l non 

 Br. and Sby. Hab. ?— 



* Mr. Sowerby remarks, " As the collector's great object is to know the shells, I have 

 preferred, in most cases, giving the species as tliey stand, stating tlie alleged differences, 

 and leaving the final decision to individual taste." He further states, with regard to some 

 groups, that " the characters of the sheUs are very uncertain, and the intentions of the 

 authors still more so." The names, references, and locaUties are given on lists to face the 

 plates, and the diagnoses separately, with a copious index. An attempt also u made to 



45 



