104 PROCEEDINGS OF THE ACADEMY OF [1898. 



in two shorter than the suture between the prefrontals, and in one 

 subequal. There are only three upper labials, only one example 

 having four. Of course there is no reason for separating as species 

 the southern examples distinguished by the smaller number of 

 annuli and which only form a variety (darwini D. & B.) of the 

 well known species. 



It seems not at all justifiable to separate as " species " each example 

 with a somewhat aberrant conformation of the head plates. As is 

 the case with the anal pores (2 or 4), and the upper labials (3 or 4), 

 the ocular also may occasionally be divided. Amphisbcena angusti- 

 frons Cope, and mildei Peters, are abnormalities of this kind of Amph. 

 danvini, and not species. In one of my examples a suture in the 

 third upper labial forms on the one side an infra-ocular. 



26. Lipidosternon microcephalum Wagl. 

 Santos, Cubatad. 



SCINCITtJE. 



27. Mabuia dorsivittata Cope. 

 Sao Paulo. 



28. Mabuia agiiis Raddi. 

 Santos. 



29. Mabuia frenata Cope. 

 Piracicaba, St. Rita. 



This is the provisional list of the S. Paulo species. Hoplocercus 

 spinosus Fitz., mentioned by Boulenger from St. Paul, may have 

 come from another South American St. Paulo, not of this State, as 

 species of Crocodilurus and Neusticurus, do not occur here. 



I believe it necessary to make some observations on the distribu- 

 tion of the Lacertilians. Our list contains 24 species of which 2 

 (Centropyx and Prionodactyhis) as hitherto known only from Sao 

 Paulo, may be left out of the discussion. Three of these species: — 

 Tupinambis teguixin, Ophiodes striatus, Amphisbcena vermicidaris, 

 with var. darwini are of very broad distribution, extending from 

 north to south Brazil and to Paraguay ; eight of the species also occur 

 in Rio Grande do Sul including Enyalius catenatus with its varieties, 

 and Anisolepis grilli with its southern representative A. undulatus. 

 The genera Enyalius, Anisolepis, Urostrophus and Pantodactylus 

 represented in Rio Grande do Sul as well as in Sao Paulo, are not 

 known at this time from Paraguay. It seems to be the same with 



