A LIST OF REPTILES, BATRACHIANS, AND FISHES 



COLLECTED BY CAV. GUIDO BOGGIANI IN THE NORTHERN CHACO 



BY G. A. BOULENGER, F. R. S. 



The series of cold-blooded Vertebrates collected by Cav. fluido 

 Boggiani at Puerto 14 de Mayo, on the Upper Paraguay, in the 

 Department Bahia Negra, have been submitted to me for study 

 by the Director of the Genoa Museum, and form the subject of 

 the present list. A few of the fishes received from the same 

 collector had already been worked out by my lamented colleague 

 Albert Perugia ( 1 ). The names of them are included. 



REPTILIA. 

 Laeertilia. 



1. Polychrus acutirostrisj Spix. 



2. Tropidurus spinulosus, Cope. 



3. Tupinambis teguixin, L. 



4. Cenlropyx viridistriga, Blgr. 



The statement in the original description that the ventrals 

 are in ,,10" longitudinal series is due to a slip or misprint 

 for u 12 ". The first pair of chin-shields may be in contact with 

 each other anteriorly, and the anal scales may be keeled. Fe- 

 male with 8 femoral pores. 



5. Ameiva surinamensis, Laur. 



Opliidia. 



6. Helicops leopardinus, Schleg. 



7. Leplophis liocercus, Wied. 



8. Cyclagras gigas, D. & B. 



(■) Cfr. " Annali " (2) XVIII, 1897, p. 147. 



