=1. Uta clarionensis= _Townsend_. _Uta clarionensis_ TOWNSEND, Proc. U. S. Nat. Mus. v. 13, 1890, p. 143; STEJNEGER, Proc. U. S. Nat. Mus. v. 23, 1901, p. 715. This lizard was first collected by Mr. C. H. Townsend who described it from five specimens. Mr. A. W. Anthony also secured it, in 1897, and sent specimens to the National Museum. The Academy has three taken by Mr. Beck. =2. Bascanion anthonyi= _Stejneger_. _Bascanion anthonyi_ STEJNEGER, Proc. U. S. Nat. Mus. v. 23, 1901, p. 715. Dr. Stejneger described this snake from thirteen specimens sent to the National Museum by Mr. Anthony. The Academy has eight examples of the species. The scale-rows are seventeen in all these specimens, while the gastrosteges vary from one hundred and eighty-seven to one hundred and ninety-six and the urosteges from ninety-three to one hundred and seven. EXPLANATION OF PLATE II. _Autodax lugubris farallonensis_ subsp. nov. _Type_, Cal. Acad. Sci. no. 3731, South Farallon Island, California, Charles Fuchs, February 8, 1899. Fig. 1. General view, natural size. Fig. 2. Head from above, × 2. Fig. 3. Head from below, × 2. Fig. 4. Head from side, × 2. Fig. 5. Mouth, × 2½ Fig. 6. Hind limb, × 2. Fig. 7. Fore limb, × 2. [Illustration: PROC. CAL. ACAD. SCI. 3^D. SER. ZOOL. VOL. IV. [VAN DENBURGH] PLATE II. MARY WELLMAN. DEL PHOTO.-LITH. BRITTON & REY. S. F. ] EXPLANATION OF PLATE III. _Batrachoseps pacificus_ Cope. Cal. Acad. Sci. no. 4601, San Miguel Island, California, R. H. Beck, March 23, 1903. Fig. 1. General view, natural size. Fig. 2. Head and neck from above, × 3. Fig. 3. Head and neck from below, × 3. Fig. 4. Head and neck from side, × 3. Fig. 5. Mouth, × 3½. Fig. 6. Fore limb, × 3½. Fig. 7. Hind limb, × 3½. [Illustration: PROC. CAL. ACAD. SCI. 3^{D}. SER. ZOOL. VOL. IV. [VAN DENBURGH] PLATE III. MARY WELLMAN. DEL PHOTO.-LITH. BRITTON & REY. S. F. ] EXPLANATION OF PLATE IV. _Sceloporus becki_ sp. nov. _Type_, Adult male, Cal. Acad. Sci. no. 4537, San Miguel Island, California, R. H. Beck, March 26, 1903. Fig. 1. General view, natural size. Fig. 2. Head from below, × 2½. Fig. 3. Head from above, × 2½. Fig. 4. Head from side, × 2½. [Illustration: PROC. CAL. ACAD. SCI. 3^{D}. SER. ZOOL. VOL. IV. [VAN DENBURGH] PLATE IV. MARY WELLMAN. DEL PHOTO.-LITH. BRITTON & REY. E. F. ] EXPLANATION OF PLATE V. _Xantusia riversiana_ Cope. Fig. 1. Cal. Acad. Sci. no. 3571, San Clemente Island, California. General view, × ⅔.