griffin: ophidia from south America in carnegte museum 



181 



24. Helicops modesta Glinther. 



Helicops modestus Guenther, Ann. & Mag. Nat. Hist. (3), VII, 1861, p. 425. 

 Helicops modestus Boulenger, Cat. Snakes, I, 1893, p. 277. 



The specimens at hand are listed as follows : 



No. 335, cf , collected by J. D. Haseman at Jacarehy, Sao Paulo, Brazil, July 15, 



1908. 

 No. 336, d', collected by J. D. Haseman at Jacarehy, Sao Paulo, Brazil, July 15, 



1908. 

 No. 348, 9 , collected by J. D. Haseman at Mogy das Cruzes, Sao Paulo, July 20, 



1908. 

 No. 349, (f , collected by J. D. Haseman at Mogy das Cruzes, Sao Paulo, July 20, 



1908. 



Nos. 348 and 349 are uniform black above, with no traces of stripes. The 

 scales of the anterior half of the body scarcely show traces of keels, which are poorly 

 developed in the posterior half. These two specimens were captured with a 

 seine in the Rio Tiete. Nos. 335 and 336 are reddish brown above, with three 

 darker stripes. They were taken in a pond near the Rio Parahyba. 



No. 348 has no traces of hypapophyses on the posterior trunk vertebrae; the 

 hypapophyses of these vertebrae of No. 349 are only low keels. 



Counts and Measubbments. 



Anal 



Scale-rows. , . . 

 Gastrosteges . 

 Urosteges . . . . 

 Upper labials . 

 Preoculars. . . . 



Postoculars. 

 Temporals. . 



Total length in mm. . 

 Length of tail in mm . 



(No. 335.) 



1/1 



19 



121 



70/70 



8(3.4) 



1 



2 



2,2 

 2,3 

 381 

 111 



(No. 336.) 



1/1 



19 



125 



54/54 



8(4) 



1 



2 

 2,2 



285 

 65 



(No. 348.) 



1/1 



19 

 120 



59/59 



8(4) 



1 



2 

 2,2 



316 

 73 



(No. 349.) 



1/1 

 19 



125 



55/55 



8(4) 



[l 



2 

 12,3 



(2,2 

 587 

 121 



25. Helicops polylepis Giinther. 



Helicops polylepis Guenther, Ann. Mag. N. H. (3), VII, 1861, p. 426. 

 Helicops polylepis Boulenger, Cat. Snakes, I, 1893, p. 280. 

 No. 319, d", Santarem, Brazil, J. D. Haseman coll., December 12, 1909. 

 No. 328, cf , Sao Luiz de Caceres, J. D. Haseman coll., May 25, 1909. 

 No. 360, cf , Santarem, Brazil, J. D. Haseman coll., December 9, 1909. 

 No. 2038, cf , Sao Antonio de Guapore, J. D. Haseman coll., July 30, 1909. 



