ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 297 



67. The followiug species and localities have also been noticed in Mr. 

 Cuming's collection : — 



Petricola denticulata, Mazatlan. 



Thracia plicata, Desh. W. N. America. 



Periploma Leana. Mazatlan. Capt. 

 Keppell and Mr. Ede, R.N. 



Lyonsia nitida. " China Seas, Belcher :" 

 probably an error. 



Tellidora Burneti. Salango and St. 

 Elena, Cuming. 



Donax assimilis. Conchagua. 



Mactra angulata : plentiful from the 

 Gulf, rare further south, teste Cuming. 



Crassatella gibbosa and undulata. West 

 Columbia. 



Cardium Belcheri. Panama, Cuming. 



Diplodonta semiaspera. St.Thomas,W.I. 

 Merk. 



Lucinafenestrata. Monte Xti, San Bias. 



Kellia suborbicularis. Is. Muerte (Guay- 

 aquil), sandy mud, 11 fms. Concep- 

 tion, Chili. 



68. Lastly, the following have been 

 Gray, Syst. Ar. Moll.* p. 52 (lanthinidce). 



Recluzia Rollandiana. Mazatlan. 

 Gray, Syst. Ar. Moll. p. 117- Garnotia 



solida, genus described. Mazatlan. 

 Gray,Syst. Ar.MoU. Scurria wwYra, genus 



described. Mazatlan. 

 Phil. Arch. 1847, p. 63. pi. 3. f. 7. Am- 



pMchcena Kindermanni. Mazatlan. 



(Appears to be a Psammobia.) 

 Tellidora Burnett. W. Columbia, Lieut. 



Freer. — Bristol Mus. 

 Dione lupinaria. Valparaiso, H. Babb, 



E.N.— Bristol Mus. 

 Cardita affinis. Cubaco, Lieut. Wood. 



— Bristol Mus. 

 Lithophagus aristatus. Panama. — Bris- 

 tol Mus. 



Modiola capax. Galapagos, Cuming. 



Helix vincta,Ya\.; Baskervillei,V{r. From 

 California and the neighbourhood. 



Acmcea gigantea=grandis, Gray. Mon- 

 tery, exposed situations. 



Omphalius Calif ornicus, A. Ad. More- 

 ton Bay. 



Chlorostomafunebrale. California. 



Ovulum gibbosum, Panama, Cuming. 



Torinia variegata. Is. Annaa, coral reefs. 



Lathyrus armatus. California. 



Leucozonia Californica. Gulf of Cali- 

 fornia, Lieut. Shipley : appears a La- 

 tliyrus. 



Ranella, like vexillum. Mazatlan. 



? tuberculata, var. Mazatlan (Havre 



Col. teste Powis). 



Nassa nodocincta, A. Ad. Galapagos. 



RhizocJieilus asper. Gulf of California. 



Typhis grandis. California. 



collected from various sources : — 



Lithophagus aristatus. Algiers, M'An- 



drew. 

 Isognomon Chemnitzianum. Panama, L. 



W^ood.— Bristol Mus. 

 Chiton consimilis. Upper California. 

 Paludina nuclea, Lea. Sacramento River. 

 Anodon angulatus. Lea. „ „ 



" Oliva splendidula. Mazatlan, — Babb, 



Esq., jR.iV."— Bristol Mus.=0. Mel- 



chersi. 

 Conus concinnus. Bay of California, 



Capt. Babb. 

 Purpura coronata. California. 

 Turritella sanguinea. California. 

 Cassis abhreviata. Acapulco. 

 Marginella imbricata. Acapulco. 

 Litorina coronata. SanBlas. — Mus.Nutt. 



69. Having now^ presented an abstract of all the original sources of in- 

 formation (so far as known to the writer), we proceed to embody them in a 

 table, arranged at the same time geographically f and zoologically, so as to 

 exhibit in one view as much of tlie foregoing materials as may be looked 

 upon as tolerably satisfactorily made-out. Doubtful species, or those whose 

 locality rests on insufficient evidence, are not included. Where the evidence 

 is good, but suspected, the name, if inserted, is in [ ] ; where it is poor, but 

 a priori correct, it is enclosed in ( ). Species entirely omitted can be written 

 in by the student, from the foregoing lists, if he is satisfied with the evidence. 

 All names printed in the same horizontal line are regarded as probably 

 conspecific; synonyms being distinguished by a single (. 



* Of this work, " Systematic Arrangement of Mollusca " (with figures of the teeth of 

 Gasteropoda), now passing through the press, Dr. Gray obligingly allowed me the use of the 

 proof-sheets. The main grouping of the Gasteropoda has been followed to a considerable extent, 



t In the second column, A. signifies Asia (chiefly Kamtschatka and the Sea of Okhotsk ; 

 B. Behrinff Sea. In the last column, E. signifies the coasts of Ecuador and Peru j C. thosei 

 olChili. 



