220 MEMOIRS OF THE CARNEGIE MUSEUM 



Counts and Measurements. 



(No. 208.) (No. 209.) 



Anal 1/1 1/1 



Scale-rows 15 15 



Gastrosteges 252 249 



Urosteges 27/27 24/24 



Upper labials 7(3.4) 7(3.4) 



Preoculars 1 1 



Postoculars 2 1 



2 



Temporals 1,1 1 



Total length in mm 301 477 



Length of tail in mm 26 32 



80. Elaps narduccii Jan. 

 Elaps narduccii Jan, Arch. Zool. Anat. Phys., II, 1863, p. 222. 

 Elaps narduccii Boulenger, Cat. Snakes, III, 1896, p. 433. 



C. M. No. 8, 9 , Provincia del Sera, Bolivia, 350 M., Steinbach coll., Jan., 1912. 

 C. M. No. 114, cf, Santa Cniz de la Sierra, Bolivia, Steinbach coll. 



Some variability in the proportions of the head shields of this species may be 

 deduced from the published descriptions. In our specimen No. 8 the width of the 

 frontal is equal to that of the supraocular, and the posterior chin -shields are longer 

 than the anterior. In No. 114 the frontal is much wider than the supraocular, 

 and the anterior chin -shields are the longer. 



Counts and Measurements. 



(No. 8.) (No. 114.) 



Anal 1/1 . 1/1 



Scale-rows 15 15 



Gastrosteges 316 279 



Urosteges 18/18 26/26 



Upper labials 7(3.4) 7(3.4) 



Preoculars 1 1 



Postoculars 2 2 



Temporals 1,1 2,1 



1,1 



Total length in mm 541 467 



Length of tail in mm 21 30 



81. Elaps princeps Boulenger. 

 Elaps princeps Boulenger, Ann. Mag. Nat. Hist. (7), Vol. XV, 1905, p. 456. 

 C. M. No. 126, cf, Santa Cruz de la Sierra, Bolivia, Steinbach coll. 



This snake was collected at the same place and bj' the same person as the 



