LACERTILIA. Rept. 13 
poceros cornu tits , viz., Cy clura nig err ima, from Navassa I., and C. onchiojisis, 
from an unknown locality, spp. nn. 
Petrosaurus , g. n., for Uta thalassina, Cope; Boulenger, t. c. p. 205. 
Uta gularis , sp. n., Cragin, Bull. Washb. Coll. i. [1884] p. 7, Guaymas, 
Mexico. 
JSceloporus, Wiegm. A synopsis of the Mexican species, by Cope, P. Am. 
Phil. Soc. xxii. p. 393. S. viviparus, p. 398, Orizaba, tceniocneniis , p. 399, 
Guatemala, ferrariperezi , p. 400, Guanajuato P, and melanogaster , p. 400, 
Guanajuato ?, spp. nn., id. t. c. 
Phrynosoma. A review of the (12) species of this genus, with 
synopsis, synonymy, and short descriptions ; A. F. Gentry, P. Ac. Philad. 
1885, pp. 138-148. 
ZoNDEIDiE. 
Platysaurus guttatus , Smith, figured by Boulenger, Cat. Liz. ii. 
pi. xiv. fig. 1. 
Anguld^. 
Gerrhonotus. The skin is cast off entire ; Zipperlen, Zool. Gart. xxvi. 
p. 368. G. cceruleus , Wgm., pi. xxv. figs, a-d, and moreletii , Bocourt, 
pi. xxiv. fig. c, figured by Gunther, Biol. Centr. Am. Rept. G. octxacce, 
p. 36, pi. xxiv. fig. a, Oaxaca, and obscurus, p. 40, pi. xxv. fig. e, Mexico, 
spp. nn., id. t. c. 
Barissia fimbriata , n. n. for Gerrhonotus ciuritus , Bocourt, nec Cope ; 
Cope, P. Am. Phil. Soc. xxii, p. 171. 
Opliisaurus gracilis , Gray, pi. xv. fig. 1, and koellikeri, Gthr., fig. 2, 
figured by Boulenger, Cat. Liz. ii. 
Propseuclopus fraasii, Hilg. (foss.). Exhaustive description by Hilgen- 
dorf, Z. geol. Ges. xxxvii. pp. 358-378, pis. xv. & xvi. This author has 
the merit of first discovering vomerine teeth in Reptiles (Pseuclopus and 
Propseudopus ). 
Diploglossus steindcichneri , Cope, pi. xxii. fig. a, and monotropis , Kuhl, 
pi. xxiii., figured by Gunther, t. c. D. striahts, Gray, pi. xvi., and hewardii, 
Gray, pi. xvii., figured by Boulenger, t. c. 
Sauresia sepoides, Gray, figured; icl. t. c. pi. xiv. fig. 2. 
Helodekmatidjs. 
Heloderma horridum, Wgm. A young specimen figured by Gunther, 
Biol. Centr. Am. Rept. pi. xxvi, 
Anniellidj], 
Anniella nigra , sp. n., J. G. Fischer, Abh. Yer. Hamb. ix. p. —. Sau 
Diego, California. [Recorded from a separate copy.] 
VARANID.E. 
Varanus grayi , n. n. for V. ornatus, Gray, nec Daud. ; Boulenger, Cat. 
Liz. ii. p. 312. V. accinthurus, n. n. for Odatria ocellata, Gray, nec 
