1896.] 
Distribution of Batrachia and Reptilia. 
893 
arm in the Alleghanies, and these interdigitate with northward 
prolongations of the Sonoran” (Medicolumbian) “ province, 
which latter completely surrounds the southern islands of the 
Boreal” (Holarctic) “system.” 
The faunal relations of the Medicolumbian realm may be 
tabulated as follows: 
Agrees with Holarctic in 
Differs from 
Paleartic in 
Peculiar Forms 
Neotropical Forms 
bel hes Nadinedsed, E SE, Procyonidæ 
Tanant Antilocapra gad 
E Mephitis | Dicotyl 
Scalopide |Didelphys. 
Cathartide. 
| an ig 
š Icteri 
Birds, except ........0+..00+ |Clamatores in general. 
| Trochilide, 
| | Meleagridee..... ......ssceeeee. rere ree 
Alliga 
Tiid a ae Gerrhonotid liz- 
ards. 
Iguanid lizards. 
pe ri pna sed gege tiv qeeses Chelydride. ....... ......+++-.|Cinosternide. 
ciniti rotalinæ Elapid venomous snakes. 
aniform i bie teese è sorses Arcifera. 
Scaphiopid Plethod E gy 
] | Aeran p | 
i | Desmognathidæ. 
Dheanvetyive rsdsbusiskestecee | 
Cry ptobranchidæ.. bbdabs lodiei | 
| Trachystomata. 
ecturus. 
Amphiumidæ, 
Percid fishes. 
OOM 6s. i E A Percopside. 
orinn ukia Amblyopsidæ. 
N oor rag 
tulariidæ 
Opri d Pl O E t i 
|Catostomidæ. 
Gasterosteidæ 
Salmonidæ. 
Amiidæ. 
Lepidosteidæ. 
