﻿U. GERRHONOTUS 455 



"Consequently, one evening, I settled down to work in 

 one corner of the laboratory behind the screen. Very shortly, 

 scarcely hearing any noise, but feeling that something was 

 under way on the silkworm tables, I quietly moved my 

 position to see what was going on. And there I saw, what 

 I had least expected, a large lizard — Gerrhonotus, quietly 

 beginning to make away with a soft juicy silkworm. 



"I was so intent on clapping a cage over the creature to 

 capture him that I failed to observe his method of devour- 

 ing his prey." 



93. Gerrhonotus scincicauda webbii (Baird) 



San Diegan Alligator Lizard 



Plate 41 



Gerrhonotus webbii Baird, Proc. Acad. Nat. Sci. Phila., 1858, p. 255 (type 

 locality, San Diego, Cal.); Baird, U.S. Mex. Bound. Surv., Vol. II, 

 1859, p. ii, pi. XXV, figs. 1-8; Cooper, Proc. Cal. Acad. Sci., Vol. 

 IV, 1870, p. 68. 



Gerrhonotus scincicaudus Cope, Bull. U. S. Nat. Mus., No. 1, 1875, P- 47 

 (part); Yarrow & Henshaw, Ann. Rep. Chief of Engineering for 

 1878, Surv. W. 100th Merid., Appendix NN, 1878, p. 219 (part). 



Gerrhonotus scincicauda Stejneger, N. Amer. Fauna, No. 7, 1893, p. 195; 

 Van Den burgh, Proc. Cal. Acad. Sci., Ser. 2, Vol. 5, 1895, P- I20 5 

 Van Denburch, Proc. Cal. Acad. Sci., Ser. 2, Vol. 5, 1896, p. 1005; 

 Van Denburch Occas. Papers Cal. Acad. Sci., V, 1897, p. 103, fig., 

 (part); Van Denburch, Proc. Acad. Nat. Sci. Phila., 1898, pp. 64, 

 65 (part); Mc Lain, Critical Notes, 1899, p. 9; Meek, Field Columb. 

 Mus., Zool. Ser., Vol. VII, No. 1, 1906, p. 12; Grinnell& Grinnell, 

 Throop Inst. Bulletin, No. XXXV, 1907, p. 28, figs. 6, 7; Grinnell, 

 Univ. Cal. Publ. Zool., Vol. 5, No. I, 1908, p. 162. 



Gerrhonotus multicarinatus Yarrow, Bull. U. S. Nat. Mus., No. 24, 1883, 

 p. 47 (part); Cope, Proc. Acad. Nat. Sci. Phila., 1883, pp. 28, 29, 

 32; Cope, Report U. S. Nat. Mus. for 1898, 1900, p. 520 (part). 



Gerrhonotus scincicauda ignavus Van Denburch, Proc. Cal. Acad. Sci., 

 Ser. 3, Zool., Vol. 4, 1905, p. 19, pi. VII, figs. 1, 2 (type locality, 

 San Martin Island, Lower California, Mexico); Van Den- 

 burch, Proc. Cal. Acad. Sci., Ser. 4, Vol. 3, 1912, pp. 148, 150; 



