Santa Margarita Island.
Five reptiles are known from this island. I have not seen specimens of the Bascanion and cannot judge of its distinctness.
1. Callisaurus ventralis (Hallowell).
Callisaurus ventralis Van Denburgh, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 98.
A female of this species, taken on Santa Margarita by Mr. Bryant, March 5, 1889, is in the collection of the Academy.
2. Sceloporus zosteromus Cope.
Sceloporus zosteromus Van Denburgh, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 110; Boulenger, Proc. Zool. Soc. Lond. 1897, p. 499; Mocquard, Nouv. Arch. Mus. sér. 4, 1899, p. 314; Cope, Report, U. S. Nat. Mus. 1898 (1900), p. 358.
Two examples were secured by Mr. Bryant on Santa Margarita, March 1, 1889.
3. Cnemidophorus rubidus Cope.
Cnemidophorus tessellatus rubidus Cope, Trans. Am. Philos. Soc. 1892, p. 36, pl. XII, fig. F; Cope, Report, U. S. Nat. Mus. 1898 (1900), p. 584, fig. 110.
Cnemidophorus rubidus Van Denburgh, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 127.
Santa Margarita Island is the type locality of this species, which was described from seven specimens brought back by the Albatross.
4. Bascanion laterale fuliginosum (Cope).
Bascanion laterale Cope, Proc. U. S. Nat. Mus. v. 12, 1889, p. 147.
Zamenis lateralis fuliginosus Cope, Am. Nat. v. 29, 1895, p. 679; Cope, Report, U. S. Nat. Mus. 1898 (1900), p. 809, fig. 178.
This snake was described from two specimens taken by the naturalists of the Albatross. I have seen none.
5. Crotalus mitchellii Cope.
Crotalus mitchellii Van Denburgh, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 160; Cope, Report, U. S. Nat. Mus. 1898 (1900), p. 1196.
A single rattlesnake of this species, taken by Mr. W. E. Bryant in February, 1889, is the only record for this island.