CROCODILIANS, LIZARDS, AND SNAKES. 



969 



This snake has considerable resemblance in color to the moccasin, 

 Ancistrodo7ipiscivorus, which iiibabits the same localities, so that it is 

 commonly mistaken for it by nncritical observers. Its more slender 

 form should, however, distinguish it, even on the most casual obser- 

 vation. 



NATRIX FASCIATA PICTIVENTRIS Cope. 

 ^^atrix fasciata jiicfiveniris Copk, American Naturalist, XXIX, 1895, p. 677. 



Brown transverse bands numerous, separated by short intervals, and 

 extending- to the belly throughout the length. Gastrosteges narrowly 

 margined at the base with brown, the margins turning at or before 

 reaching the ends of the gastrosteges and uniting so as to inclose trans- 

 verse yellow spots, which are wider than those seen in N. compressi- 

 candus. Sides of head light brown, generally with a black postocular 

 band; top of head black. Scales in 25 rows; in one specimen (Cat. 

 No. 19798) in 27 rows. 



Cat. Nos. Upper labials. Gastrosteges. Tlrosteges. Sea 



5473 (injured at end). 

 19999.. 



125. 

 124. 



45. 



86. 



In some specimens (Cat. Xo. 13779) the transverse bands are very dis- 

 tinct, as in young individuals; in Cat. Nos. 19798 and 11444, they are 

 connected by the same color along the median vertebral line. 



This subspecies is restricted to Florida. It approaches the X. com- 

 pressicauda in the coloration of the belly. 



Natrix faseiata pictiventris Cope. 



NATRIX FASCIATA SIPEDON Linnaeus. 



Coluher sipedon LlNN.^us, Syst. Nat., 12tli od., 1766, I, p. 379. — G.melix, Linn. 



Syst. Nat., 13th ed., I, Pt. 3, 1788, p. 1098.— Shaw, Gen. Zool., Ill, Pt. 2, 1802, 



p. 496. — Mekkkm, Tentamen, 1820, p. 124. — Harlan, Journ. Acad. Nat. Sci. 



Phila., 1827, p. 351.— SxoRER, Eeport Mass., 1839, p. 228.— Thompson, Hist. 



Vermont, 1842, p. 118. 

 Tropidonotus sipedon HoLBROOK, N. Amer. Herp., Ill, 1842, ]>. 29, pi. vi. — Dumi^ril 



and BiBRON, Erp. G6xx., VII, 1854, p. 568. 

 Tropidonotus sipedon sipedon Cope, Check-list N. Amei'. Batr. Kept., 1875, p. 42. 

 Tropidonotus faseiatns \&T. B. GCnther, Cat. Col. Snakes Brit. Mus., 1858, p. 75. 

 Tropidonotus fasciatus var. si2)edon Boulexger, Cat. Snakes Brit. Mus., I, 1893, 



p. 244. 

 Coluier poecilogaater Wied, Raise Inn. Nord Amerika, I, 1839, p. 106 



