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BATRCHIA ANURA: 
Leptodactylus melanonotus 
Hallow. 
Hypopachus variolosusCope. 
SAURIA: 
Sceloporus siniferus Cope. 
Sceloporus horridus Wiegm. 
Sceloporus rubriventris 
Gthr. 
Sceloporus pyrrhocephalus 
Cope. 
Sceloporus omiltemanus 
Gthr. 
Sceloporus dugesii Boc. 
Sceloporus bullerii Boul. 
Sceloporus heterolepis Boul. 
Cnemidophorus deppei linea- 
tissimus Cope. 
The American Naturalist. 
[December, 
Eumeces callicephalus Boe. 
SERPENTES : 
Pseudoficimia frontalis Cope. 
Sympholis lippiens Cope. 
Atractus omiltemanus Gthr. 
_ Adelophis copei Dugés. 
Rhadinæa laureata Gthr. 
Eutænia godmanii Gthr. 
Chionactis michoacanensis 
Dugés. 
Coniophanes lateritius Cope. 
Conophis vittatus Pet. 
Himantodes gemmistratus 
latistratus Cope. 
Sibon personatum Cope. 
Manolepis nasutus Cope. 
Of the above species there are found in the Tierra Caliente : 
Sceloporus siniferus Cope. 
Sceloporus horridus Wiegm. 
Sceloporus pyrrhocephalus 
~ Cope. 
Conophis vittatus Pet. 
Sibon personatum Cope. 
Manolepis nasutus Cope. 
And in the region south to Costa Rica : 
‘Hypopachus variolosus Cope. 
Himantodes geminata 
Cope. 
The sinensis: district shares with the Austrocentral 
the following: 
BATRACHIA ANURA: SAURIA: 
Bufo compactilis Wiegm. 
Hyla eximia Bd. po Wiegm. ie noi 
Rana OM bea austricola - Uta bicarinata Dum. | 
Cope. . ià - Barissia imbricata, Wiegm. 
Phyllodactylus - tuberculosus 
