234 BULLETIN 15 4, UNITED STATES NATIONAL MUSEUM 



tail as percentage of total length, 72.3-75.1; width of head, 7.U-9.1: 

 width of head as percentage of body length, 12.5-15.5; hind leg, 

 31-43; length of hind k'g as percentage of body length, 50.G-75.O; 

 femoral pores 15-19; supraoculars, three in 7 specimens, 3-4 in one 

 specimen, and 4 in one specimen; supraocular granules extending 

 forward to the center of the third supraoc^ular in one specimen, to 

 the posterior border of the second supraocular in six specimens, and 

 to the anterior border of the second supraocular in two specimens; 

 single dorsal stripe forked anteriorly in all ; variation in percentage 

 of forking, 12.5 to 49 per cent of total length of stripe, including 

 fork. 



Seventeen specimens of " franciscensls " from San Francisco 

 Island, east coast of the Cape District of Lower California, have 

 been seen, and their data may be sunmiarized as follows : Body, 49- 

 63 mm; tail, 140-190; total length, 192-229; length of tail as percent- 

 age of total length, 72.5-75.0; width of head, 6.5-9.0; width of liead 

 as i^ercentage of body length, 12.5-15.3; hind leg, 32-41; length of 

 hind leg as percentage of body length, 63.5-75.5 ; femoral pores, 12- 

 18; supraoculars, 3 in 15 specimens, 3-4 in 1 specimen, and 4 in 1 

 specimen; supraocuhir granules extending forward to the center of 

 the third supraocular in 14 specimens, to the posterior border of 

 the second supraocular in 3 specimens ; a single dorsal stripe, forked 

 anteriorly, in all; variation in percentage of forking, 4.4 to 22.8 per 

 cent. 



The 62 specimens in the collection of the California Academy of 

 Sciences identified by Van Denburgh as ^'' scJwiidfi^^ are all froui 

 Lower California, and are chieHy from the east coast of the upjX'r 

 part of the Cape District, the east coast of the Central District, and 

 the neighboring islands of Coronados and vSan Marcos. The fol- 

 lowing data are presented to show the variation in this series : Body, 

 47-63 mm; tail, 130-182; total length, 182-245; length of tail as 

 percentage of total length, 72.5-76; width of head, 6-9; width of 

 head as percentage of body length, 12.0-15.5 ; hind leg, 33-45 ; length 

 of hind leg as percentage of body length, 63.0-84.7; femoral pores, 

 14r-19; frontoparietal plate single in 59 specimens, double in 2; 

 supraoculars 3 in 10 specimens, 3-4 in 1 specimen, and 4 in 51 speci- 

 mens; supraocular granules extending forward to the anterior bor- 

 der of the fourth supraocular in 1 specimen, to the middle of the 

 third supraocular in 28 specimens, to the posterior border of tlu^ 

 second supraocular in 28 specimens, to the middle of the second supra- 

 ocular in 3 specimens, and to the anterior border of the second su- 

 praocular in 2 specimens; dorsal stripes 2, separated and unforked, 

 in 8 specimens, two united into a single line behind and forked ante- 

 riorly in 54 specimens; variation in percentage of forking, 10.6 to 

 45.0 per cent. 



