190 REPORT — 1856. 



nary students to make use of the information they afford. But in the part 

 of South America to which our present inquiries are directed, which is mainly 

 from Panama to the Bay of Guayaquil, it does not appear that M. D'Orbigny 

 himself traveled. The shells quoted from this coast were principally col- 

 lected by M. Fontaine, or copied from the descriptions of Mr. Cuming's 

 stores. Those which are connected with the West North American pro- 

 vince are as follow. The numbers refer to the " List of the Shells of South 

 America in the Collection of the British Museum. 1854>." Some notes are 

 added on doubtful species, from a study of the specimens. 



No. 



279. Turritella Broderipiana, D'Orb. Peru, Payta. 



= T. goniostoma, Val. 

 301. Natica glauca, Val. = N. patula, Soiv. Peru, Payta. 

 320. Cyprsea nigropunctata, Gray. Payta. 

 345. Columbella lanceolata, Sow. Peru, Payta. 

 356. Purpura hsemastoma, Lam. Brazils. 



These specimens are of the P. Floridana type, punctured like the Mazatlan 

 P. biserialis, but with the tubercles not developed. Some of the shells 

 appear to be the true P. undata, Lam. 



359. scalariformis, Blainv. Guayaquil. 



= Cuma kiosquiformis, var. 



365. bicostalis, Lam. Brazils. 



Very like No. 364, which is probably the true P. undata of Lam., not of 

 Val. and C. B. Ad. Whether the Lamarckian P. bicostalis be this shell, 

 or an E. Indian species, as supposed by Blainv., is not known. Reeve 

 assigns the name to the Mazatlan shell. 



373. Cerithium varicosum, Sow. Guayaquil. 



374. Montagnei, D'Orb. Guayaquil. 



(Quite distinct from Cerithidea varicosa.) 



407. Calyptraea (Calypeopsis) quiriquina, D'Orb. Chili; Conception. 



= (Tablet 555) C. rugosa, Desh., var. Probably a form of Crucibulum spi- 

 nosum. 



408. ( ) rugosa, Desh. Chili. 



= C. lignaria, Brod., non C. rugosa, Less. Tablet 558 is the extreme form, 

 lignaria ; 557, intermediate between that and 555. 



409. (- ) imbricata, Soiv. Peru ; Payta. 



= C. rugosa, Less., not Desh. Tablets 559, 560 are the true Crucibulum 

 imbricatum: 561, ?do. var. Broderipii; 556, ??do. var. Cumingii. 



410. ( ) auriculata, D'Orb. Peru; Payta. 



=zCrucibulum spinosum, Sow., not P. auriculata, Chemn. 



411. (Trochatella) trochiformis, D'Orb.=T. radians, Lam. Chili and Peru. 



412. ( ) mammillaris, D'Orb. Peru; Payta — Guayaquil. 



= Galerus unguis, Brod., not G. mammillaris, Brod. 



415. Crepidula aculeata, Gmel. Brazils; Patagonia. 



416. Patagonica, D'Orb. Patagonia. 



Probably = C. dilatata, var. Some species are perhaps C. nivea, var. 



417. protea, D'Orb. East coast; Patagonia; Brazils. 



Tablet 573, probably dead specimens of C. incurva, or onyx, or both. 



„ 574 „ „ C. nivea. 



419. foliacea, Brod. Bolivia. 



Possibly a var. of C. dilatata ; like C. Lessonii of C. nivea. 



420. arcuata, Brod. Peru ; Payta. 



Probably = C. dilatata, var. 



440. Acmsca scurra, Less. Chili, Arica (on Fucus). 



= Scurria mitra, Gray, from Less, and Esch. 



441. scutum, Esch. Chili; Bolivia; Peru. 



—A. patina, var. 



449. Patella maxima, D'Orb. Peru; Payta. 

 =P. Mexicana. 



