1896.] Distribution of Batrachia and Reptilia. 1007 
within its borders may be discerned—the Ocmulgian, the Louis- 
ianian and the Texan. The Texan is especially characterized 
by the combination of the Austroriparian fauna with a con- 
siderable number of the species of the Sonoran subregion. The 
characteristic Austroriparian species are the following: 
TRACHYSTOMATA : 
> 
Siren lacertina L. 
URODELA : 
Amphiuma means Gard. 
Amblystoma talpoideum 
Holbr. 
Manculus quadridigitatus 
Holbr. 
SALIENTIA : 
Bufo lentiginosus lentigino- 
sus Shaw. 
‘Chorophilus occidentalis B. 
& G. 
Hyla carolinensis Penn. 
Engystoma carolinense. 
LORICATA : 
Alligator mississi ippiensis 
Daud. 
SAURIA: 
Ophisaurus ventralis Daud. 
Anolis carolinensis. 
SERPENTES : 
Heterodon simus Linn. 
Cyclophis æstivus Linn. 
Zamenis flagelliformis Cat- 
esb 
Coluber spiloides D. & B. 
Compsosoma corais couperii 
Holbr. 
Osceola doliata syspila Cope. 
Osceola doliata coccinea 
Schl. 
Ophibolus getulus sayi Hobr. 
Cemophora coccinea Blum. 
Natrix clarkii B. & G. 
Natrix fasciata fasciata L. 
Natrix fasciata erythrogaster 
Shaw. 
Natrix cyelopium D. & B. 
Virginia valeriæ B. & G. 
Haldea striatula L. 
Tantilla coronata B. & G. 
Elaps fulvius L. 
Ancistrodon piscivorus La- 
cep. 
Systrurus miliarius L. 
Crotalus adamanteus ada- 
‘manteus Beauv. 
Thirty-one species and subspecies. 
The Austroriparian shares with the Floridan subregion all 
of the above species except Coluber spiloides, Natrix clarkii, Vir- 
ginia valerie and Haldea striatula, so far as yet known. It 
shares with the Eastern subregion the following thirty-four 
species. 
