108 STEJNEGER AND BARBOUR, 1923 



Natrix sipedon sipedon^ (Linne) 

 WATER-SNAKE 



Coluber sipedon Linne 



Syst. Nat., Ed. 10, Vol. 1, 1758, p. 219. 

 Natrix sipedon Kirsch 



Bull. U. S. Fish Coram., Vol. 14, 1895, p. 333. 

 Natrix fasciata sipedon Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 969, fig. 251. 



TYPE locality: North America. 



RANGE : Northern and northeastern United States. 



Natrix sipedon fasciata ^ (Linne) 



Coluber fasciatus Linne 



Syst. Nat., Ed. 12, Vol. 1, 1766, p. 378. 

 Natrix sipedon fasciata Stejneger and Barbour 



Check List N. Amer. Amph. Rept., Ed. 1, 1917, p. 96. 

 Natrix fasciata fasciata Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 966, fig. 250. 



TYPE locality: Carolina. 



range: Virginia to Florida, westward to Louisiana and north- 

 ward up the Mississippi through all the central states to Ne- 

 braska and Indiana. 



Natrix sipedon pictiventris (Cope) 



Natrix fasciata pictiventris Cope 



Amer. Nat., Vol. 29, 1895, p. 677. 

 Natrix sipedon pictiventris Stejneger and Barbour 



Check List N. Amer. Amph. Rept., Ed. 1, 1917, p. 96. 

 Natrix fasciata pictiventris Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 969. 



TYPE locality: Palatka, Florida. 

 RANGE : Peninsula of Florida. 



' Blanchard, evidently planning a considerable revision of the sipedon-fasciata group of Natrix, has 

 proposed a new subspecies which we recognize as proposed without as yet making the nomenclatural 

 changes predicated: 



Natrix fasciata confluens Blanchard. 



Occ. Papers Mus. Zool. Univ. Michigan, No. 140, July 9, 1923, p. 1. 

 TYPE locality: Butler County, Michigan. 

 range: Eastern Louisiana north through southern and eastern Arkansas to southeastern Missouri and 



west in Texas to about the 9Sth Meridian. 



2 Apparent forms which are more or less uniformly rufescent are found in the ranges of both the 

 subspecies fasciata and sipedon. To these the names of Natrix sipedon erythrogaster (Forster in Bossu, 

 Travels through North America, Vol. 1, 1771, p. 364, footnote) and Natrix sipedon fulviventer 

 (Rafinesque, Ann. Nat., 1820, No. 1, p. 6) have been given. 



