115. STlLOSOMi. 325 



Carphophiops vermis, Cope, Check-List N. Am. Rept. p. 34 (1876), 

 and Proc. U.S. Nat. Mus. xiv, ]892, p. 597. 



helense, Cope, I. c. 



Oarphophis helenEe, Garm. I. c. p. 100; S. Qarm. I. c: p. 308. 



Snout rounded, somewhat projecting. Eostral as deep as broad, 

 the portion visible from above one half to two thirds as long as its 

 distance from the frontal ; nasal entire ; internasals distinct, or 

 fused with the praefrontals ; supraocular very small ; frontal as long 

 as broad or a little longer, longer than its distance from the end of 

 the snout, shorter than the parietals ; loreal about twice as long as 

 deep ; an elongate temporal ; five upper labials, third and fourth 

 entering the eye, fifth largest ; four lower labials in contact with 

 the anterior chin-shields, which are longer than the posterior. 

 Scales in 13 rows. Ventrals 112-138 ; anal divided ; subcaudala 

 24-37. Brown above, yellowish (red in life) beneath. 



Total length 300 millim. ; tail 50. 



Mississippi Valley and eastwards as far north as Massachusetts. 



A. Internasals distinct. 



a. 5 (V. 131 ; 0. 28). Delaware. E. Doubleday, E34. 



[P.]. 



b. c? (V. 123 ; C. 37). Pennsylvania. Christiania Museum. 



c. S (V. 121 ; 0. 28). Pennsylvania. 



d. e. 2 (V. 138, 131 ; N. America. Lord Ampthill [P.]. 

 0. 27, 27). 



B. No internasals. 



/. d (V. 126 : 0. 36). Illinois. 



ff. 2 (V. 131 ; 0.25). Illinois. Smithsonian Institution. 



h-k. 2 rV. 120, 125, Bloomington, Indiana. C. Bollman, Esq. [0.1. 

 127 ; C. 24, 25, 28). 



115. STILOSOMA.* *; ' " 



Stilosoma, A. E. Brown, Proc. Ac. Philad. 1890, p. 199 ; Cope, Proc. 

 U.S. Nat. Mus. xiv. 1892, p. 595. 



Head not distinct from neck ; eye moderately small ; one nasal ; 

 internasals distinct, or fused with the praefrontals ; no loreal ; prse- 

 ocular present or absent ; parietals in contact with the labials. 

 Body very slender, cylindrical and rigid ; scales smooth, without 

 pits, in 19 rows ; ventrals rounded. Tail short ; subcaudals in two 

 rows. 



Florida. 



1. Stilosoma extenuatum. 



Stilosoma extenuata, A. E. Brown, L c. 

 Snout rounded. Eostral prominent but not recurved ; supra- 



* Mr. A. Erwin Brown informs me (12 Aug., 1893) that,, since describing 

 this remarkable new genus, he has received three more specimens from Lake Kerr, 

 Florida, no two of which agree in the lepidosisof the head. I have therefore modi- 

 fied the diagnosis according to the notes he has kindly communicated to me. 



