ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 565 



may or may not belong to the Pacific slope. They should be studied 



in connexion with U. S. forms, but are not here tabulated.] 

 50. Melania Buschicma, Rve. " California." [No authority. Very like the 



young of 31. scipio, Gld.] 

 367. Melania nigrina, Lea, MS. in Mus. Cum. "Shasta, California." 

 68. Cancellaria funiculata, Hds.,= C. lyrata, Ad. and Rve. Gulf Magdalena. 

 66. Litorina irrorata, Say. "Sitcha." [The "Sitcha" shell is Z. modesta, Phil. 



Say's species is the well-known form from the Gulf of Mexico.] 



5. Terehra strigata, Shy., + elongafn,Wood., =/iammea, Jmss., =zebra, Kien. "Pa- 



nama, Galapagos, and Philippines, Cuming; Moluccas, &c." [Painting 

 in stripes.] 



10. Terehra rohnMa, Hds. Panama, &c. \_=T. Loroisi, Guer., teste Rve. P. Z. S. 

 1860, p. 450. Painting splashed.] 



12. Terehra i-ariegata, Gray. "Mouth of the Gambia, Senegal, Mazatlan, Co- 

 lumbia. It is well known to those who have studied the geographical 

 distribution of animal life, that the fauna of the West African seas, 

 north of Sierra Leone, is in part identical with the fauna of the seas of 

 California and the W. Indies ; and geologists, amone whom was the late 

 Prof. E. Forbes, have laboured, not unsuccessfully, to account for this 

 phenomenon." [ Vide Maz. Cat. p. 157, B. A. Rep. p. 365. In the pre- 

 sent instance, however, there will be more than one opinion as to the 

 identity of the species here quoted.] -(- 2'. africana, Gray, + T. Hiipei, Lorois, 

 + T. intertincta, Hds.,+ T. marginata, Desh., + T. alhocincta, Cpr., + 'T, 

 Hhidsii, Cpr., -I- T. subnodosa, Cpr. 



72. Terehra armillata, Hds. " Panama, Galapagos. Somewhat doubtful whether 

 this is not a var. of T. variegata.^^ [If the others are, probably this is. 

 Those species of Hinds, which Mr. JReeve has not altered, are not here 

 repeated.] 



32. Terehra dislocata [as Cerithiuni], Say. " Southern U. S. and California." [No 

 authority given for Cal.] 



84. Terehra rudis, Gray, " =M. 7-ufocinerea, Cpr. S. Carolina, Jag. Somewhat 

 doubtful whether this is not a var. of dislocata." [The T. 7-ufocinerea is 

 one of the difficult Mazatlan shells, and shoidd share the fate of T. Hindsii 

 and T. suhnodosa.^ 



35. Terehra cinerea, Born. " W. Africa, HennaJi ; Japan, Hds. ; Philippines, 

 Cuming; W. I., C. B. Adams; Mazatlan, Cpr." [i.e. Reigen. The same 

 remarks apply to this group as to varieguta, &c.]4-3". castanea, Kien., non 

 Hds.,-|-T. laurina, Hds.,+ T. luctuosa,iids.,-\- T. stylata, Hds.,-|- T. Janiai- 

 censis, C. B. Ad. 



40. Terehra aspera, Hds.,-]- T. Petiveriana,'Desh. Panama, S. A., Cuming, Bridges, 

 2. Calyptr<sa tortilis, Rve. Galapagos, Cuming. 

 8. Calyptraa alveolata, A. Ad., MS. Galapagos, Cuming. 

 4. Crepidula excavata, Brod. Chili[?], Cuming. 



6. Crepidula nautiloides* , Less., MS. in Mus. Cum. "New York." \_=C. 



dilatata.'\ 

 8. Crepidula marginalis, Brod. Panama, Cuming. [V. Maz. Cat. p. 292, note.] 



10. Crepidula rugosa, Nutt. Upper Cal. [An accidentally ribbed specimen, 



figured from Mus. Taylor.] 



11. Crepidula fimhriata, Rve. (June 1859). Vancouver's Straits. [This is to 



navicelloides, Nutt., no. 97, as Lessonii is to squama ; simply an accidentally 

 frilled var. ] 



12. Crepidula adunca, Sby. [Not] Panama. =C. solida, Tlds.,=7-ostriformis, 



Gld. [This is the northern species from Vancouver and Cal., and is not] 

 =uncata, Mke. 



13. Crepidula arenata, Brod. St. Elena (not Helena, Desk.), Cttming. 



22. Crepidula acideata, Gmel. Lobos Is., Peru, Ctmiing; California, Nutt., Cpr. 

 [i. e. Mazatlan, Reigen'] ; Honduras, Dyson ; Sandw. Is., Austr., Kur- 



• Several S. American forms are here quoted for the synonymy ; because in Calyptraidm 

 the species often have a wide range, and should be studied in connexion with their 

 neighbours. 



51 



