Vol. XVI, pp. 123-124 September 30, 1903 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW HOGNOSE SNAKE FROM FLORIDA. 

 BY LEOXHARD STEJNEGER. 



[By permission of the Secretary of the Smithsonian Institution.] 



Mr. E. J. Brown collected in 1901, near Lemon City, two 

 hognose snakes lacking the azygos shield between the inter- 

 nasals. Fearing that they might be freaks only, I waited until 

 the receipt of a young specimen in all essential features like the 

 others. I propose to name this new form after its discoverer: 



Heterodon browni, new species. 



Diagnosis. — Maxillary teeth, S -f- 2; no azygos shield between inter- 

 nasals or prefrontals: rostral narrower than distance between eyes; scale 

 rows, 25; ventrals, 114-127; anal divided; subcaudals, 47-53 pairs. 



Habitat. — Southern Florida. 



Type. — Immature female, No. 32,089 United States National Museum; 

 Lemon City, Florida; E. J. Brown, collector. 



Description. — Adult male: U. S. Nat. Mus. No. 31,92G; Lemon City. 

 Florida; E. J. Brown, collector. Rostral slightly recurved, the under- 

 side much wider than high, the upper portion about equalling its distance 

 from frontal, the posterior projection less than half the suture between 

 the internasals; rostral keel sharp; internasals broadly in contact, with 

 no azygos shield between them, their mutual suture longer than that be- 

 tween the prefrontals; prefrontals undivided, large, in contact with each 

 other, with frontal, supraoculars, upper preorbital, loreal and posterior 

 nasals; frontal one and one-half times as long as broad, as long as pari- 

 etals; nostril in suture between two nasals, opening backwards, the pos- 

 33—Proc. Biol. Soc. Wash. Vol. XVI, 1903. (123) 



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