=1. Uta stansburiana= _Baird & Girard_. _Uta stansburiana_ TOWNSEND, Proc. U. S. Nat. Mus. v. 13, 1890, p. 144; VAN DENBURGH, Occas. Papers, Cal. Acad. Sci. 5, 1897, p. 68; COPE, Report, U. S. Nat. Mus. 1898 (1900), pp. 310, 311. Two specimens were taken on San Clemente Island by C. H. Townsend in 1889. Mr. A. W. Anthony and Dr. E. A. Mearns also found the species there and sent specimens to the National Museum. I have examined those collected by Mr. Townsend and Mr. Anthony and six specimens sent me by Mr. Joseph Grinnell, of which three are now in the collection of the Academy, and am unable to distinguish the island lizards from the form originally described by Baird and Girard. The femoral pores in three specimens are eleven, twelve, and fourteen. =2. Xantusia riversiana= _Cope_. PLATE V, FIG. 1. _Xantusia riversiana_ COPE, Proc. U. S. Nat. Mus. v. 12, 1889, p. 147; VAN DENBURGH, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 534; VAN DENBURGH, Occas. Papers, Cal. Acad. Sci. 5, 1897, p. 132; COPE, Report, U. S. Nat. Mus. 1898 (1900), pp. 552, 553. This lizard was found on San Clemente by Mr. C. H. Townsend. I have examined several specimens in the collections of the University of California and the California Academy of Sciences without finding differences between them and specimens from San Nicolas and Santa Barbara Islands. LOS CORONADOS. I believe that only one reptile from Los Coronados is represented in collections, but I am informed that several other kinds, including _Gerrhonotus_ and _Hypsiglena_, occur on these islands[7]. [Footnote 7: Since this was written I have been informed by Dr. F. Baker, of San Diego, that he has taken the following reptiles on these islands:-- North Coronado: _Gerrhonotus scincicauda_ [_ignavus?_], July 3, 1898, _Eumeces skiltonianus_, July 3, 1898. South Coronado: _Uta stansburiana_, July 3, 1898, _Gerrhonotus scincicauda_ [_ignavus?_], July 3, 1898, _Cnemidophorus stejnegeri_, July 3, 1898, _Hypsiglena ochrorhynchus_, August 13, 1898, _Crotalus_ [_oregonus_], August 13, 1898. ] =1. Crotalus oregonus= _Holbrook_. _Crotalus adamanteus atrox_ STREETS, Bull. U. S. Nat. Mus. no. 7, 1877, p. 40; YARROW, Bull. U. S. Nat. Mus. no. 24, 1882, p. 75 [part]. _Crotalus atrox_ VAN DENBURGH, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 156 [part]. _Crotalus lucifer_ STEJNEGER, Report, U. S. Nat. Mus. 1893 (1895), pp. 445, 447. _Crotalus confluentus confluentus_ COPE, Report, U. S. Nat. Mus. 1898 (1900), p. 1173 [part]. Streets recorded as _Crotalus adamanteus atrox_ a rattlesnake which he secured on Los Coronados. Dr. Stejneger has shown that this specimen, which is still in the National Museum, is a Pacific Rattlesnake. SAN MARTIN ISLAND.