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 Buschiana, Rve. “California.” [No authority. Very like the 
young of VW. scipro, 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. Terebra strigata, Sby., + elongata, W00d., =flammea, Less., =zebra, Kien. “Pa- 
nama, Galapagos, and Philippines, Cuming; Moluccas, &c.” [Painting 
in stripes. : 
10. Terebra a ait Hds. Panama, &e. [= 7. Lorots?, Guér., teste Rve. P. ZS. 
1860, p. 450, Painting splashed. 
12. Terebra variegata, 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, among 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. 865. In the pre- 
sent instance, however, there will be more than cne opinion as to the 
identity of the species here quoted. |+ Z\ africana, Gray,+ T. Hupei, Lorois, 
+ T. intertincta, Hds.,+ T. marginata, Desh.,+ T, albocincta, Cpr., + T. 
Hindsi, Cpr.,+ T. subnodosa, Cpr. 
72. Terebra armillata, Hds. “Panama, Galapagos. Somewhat doubtful whether 
this is not a var. of 7. variegata.” [If the others are, probably this is. 
Those species of Hinds, which Mr, Reeve has not altered, are not here 
repeated. | 
$2. Terebra dislocata [as Cerithium], Say. “Southern U.S. and California.” [No 
authority given for Cal. 
84. Terebra rudis, Gray, “ = M. rufocinerea, Cpr. 8. Carolina, Jay. Somewhat 
doubtful whether this is not a var. of dislocata.” [The 7. rufocinerea is 
one of the difficult Mazatlan shells, and should share the fate of 7. Mindsiz 
and 7. subnodosa. | 
85. Terebra cinerea, Born. “W. Africa, Hennah; Japan, Hds.; Philippines, 
Cuming; W.1., C. B. Adams; Mazatlan, Cpr.” i e. Reigen. The same 
remarks apply to this group as to variegata, &e.|+ 7. castanea, Kien., non 
Hds.,+ 7. laurina, Hds.,+ 7. luctuosa, Hds.,+ T. stylata, Ads.,+ TZ. Jamai- 
censis, C. B. Ad. 
0. Terebra aspera, Hds.,+ T. Petiveriana, Desh. Panama,8. A., Cuming, Bridges. 
2. Calyptrea tortilis, Rve. Galapagos, Cuming. 
8. Calyptrea alveolata, A. Ad., MS. Galapagos, Cumung. 
4. Crepidula excavata, Brod. Chilif?], Cuming. 
6. Crepidida nautiloides*, Less., MS. in Mus. Cum. “New York.” [=C, 
dilatuta. | 
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. 
ll. Crepidula fimbriata, Rve. (June 1859). Vancouver's Straits, [This is to 
navicelloides, Nutt., no. 97, as Lessonit is to squama ; simply an accidentally 
frilled var. | 
12. Crepidula adunca, Shy. [Not] Panama. =C. solida, Hds.,=rostriformis, 
Gld. [This is the northern species from Vancouyer and Cal., and is not] 
=uncata, Mike. 
18. Crepidula arenata, Brod. St. Elena (not Helena, Desh.), Cuming. 
22, Crepidula aculeata, Gmel, Lobos Is., Peru, Cuming; California, Nutt., Cpr. 
[%.e. Mazatlan, Reagen]; Honduras, Dyson; Sandw. Is., Austr., Kur- 
* Several S. American forms are here quoted for the synonymy ; because in Calyptreide 
the species often haye a wide range, and should be studied in connexion with their 
neighbours, Lact 
