Professor Cope described this form from specimens secured on Cerros Island. =7. Cnemidophorus labialis= _Stejneger_. _Cnemidophorus labialis_ STEJNEGER, Proc. U. S. Nat. Mus. 1889, p. 643; COPE, Trans. Am. Philos. Soc. v. 17, art. 3, 1892, p. 51; VAN DENBURGH, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 128; COPE, Report, U. S. Nat. Mus. 1898 (1900), p. 610. Cerros Island is the type locality of this species also. Five specimens were collected by Mr. Belding. =8. Crotalus exsul= _Garman_. _Crotalus exsul_ GARMAN, Mem. Mus. Compar. Zool. Camb. v. 8, no. 3, 1883, pp. 114, 174; GARMAN, Bull. Essex Inst. v. 16, no. 1, 1884, p. 35; VAN DENBURGH, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 157. Under this name Garman has described from two specimens a small rattlesnake from Cerros Island. It seems very closely related to _C. atrox_. NATIVIDAD ISLAND. I have seen only one lizard from this island. =1. Uta stansburiana= _Baird & Girard_. A single specimen (Cal. Acad. Sci. No. 4705) of this _Uta_ was secured on Natividad by Mr. R. H. Beck, May 9, 1903. MAGDALENA ISLAND. I have elsewhere recorded six species of lizards from this island. It is necessary only to mention them here. The specimens are in the collection of the Academy. =1. Dipsosaurus dorsalis= _Baird & Girard_. _Dipsosaurus dorsalis_ VAN DENBURGH, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 93. One was secured by Mr. Bryant in March, 1889. =2. Crotaphytus wislizenii= _Baird & Girard_. _Crotaphytus copeii?_ VAN DENBURGH, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 95. Upon reëxamination, I am unable to separate two specimens from Magdalena Island from the common form of this lizard. =3. Uta nigricauda= _Cope_. _Uta nigricauda_ VAN DENBURGH, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 108. Mr. Bryant secured a number of these lizards on Magdalena Island in 1888 and 1889. =4. 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. The Academy has eight examples of this lizard taken on Magdalena by Mr. Bryant in February and March, 1889. =5. Verticaria hyperythra beldingi= (_Stejneger_). _Verticaria hyperythra beldingi_ VAN DENBURGH, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 132. Three specimens were collected by Mr. Bryant in March, 1889. =6. Cnemidophorus rubidus= (_Cope_). _Cnemidophorus rubidus_ VAN DENBURGH, Proc. Cal. Acad. Sci. 2d ser. v. 5, 1895, p. 127. A lizard of this species was taken on Magdalena Island in March, 1889, by Mr. W. E. Bryant.