504 ADDENDA AND CORRIGENDA. 
Add:— Page 248. Phrynosoma modestum. 
Phrynosoma modestum, Gentry, 1. c. p. 148. 
Ada:— Page 248. Phrynosoma braconnieri. 
Phrynosoma braconnieri, Gentry, J. c. p. 147. 
Add :— Page 249. Phrynosoma taurus. 
Phrynosoma taurus, Gentry, 7. c, p. 146. 
Page 266, seeond line from top, for tubercles read tubules. 
Add :-— Page 274. Gerrhonotus czruleus. 
x-y. Yg. Santa Cruz, California. Mr, Fovrrer [C.]. j 
2. Arizona or New Mexico. Dr. W. G. Wright [P.]. 
Add:— Page 281. Ophisaurus apus. 
q-r. Ad. Bala Morghab. Dr. Aitchison [C.]. Afghan 
Boundary Commission. 
at. Yg. Gulran. Dr. Aitchison [C.]. Afghan 
Boundary Commission. 
And erase var. ornatus. 
Ada Page 283. Ophisaurus koellikeri. 
Pseudopus apus, forma ornata, Boettg. Zool, Anz. 1881, p. 571, and 
Abh. Senck, Ges. xiii. 1883, p. 118 *. 
Hab. Moroeco. 
Ada Page 289. Diploglossus striatus. 
Diploglossus (Celestus) ohlendorffii, Fischer, Jahrb. Wiss. Anst. 
Hamb, iii, 1886, p. —, pl. —. fig. 1. 
, Page 292. Add a species :— 
11a. Diploglossus microcephalus. 
Euprepis microcephalus, Hallow. Trans. Amer. Phil. Soc. (2) xi. 
1857, p. 79. 
Head short; body stout, elongate. A single pair of shields 
between the rostral and the azygos prefrontal. 29 scales round 
the body, those upon the back and sides with 7 or 8 keels. 
Uniform ash, with traces of four longitudinal narrow dark-coloured 
lines extending the whole length of the trunk. Length of head 
12 millim., body 41, tail 70. 
Mexico. 
* Type examined. 
