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CHAP. XIX.] KEPTILES. 377
Africa ; Helicops (2 sp.), North and South America ; Farancia
and Dimodes, with one species each, are from New Orleans ;
a few others imperfectly known from Tropical America.
Family 9.—PSAMMOPHID^. (5 Genera, 20 Species.)
Neotropical
sub-reoions.
Nearctic
Sub-regions.
General Distkibution.
Pal^abctic
Sub-regions.
Ethiopian
Sub-regions.
Oriental
Sub-regions.
— 2 1.2.3.4 1—3.4 —
and
Australian
Sub-regions.
The Psammophidse, or Desert Snakes, are a small group
characteristic of the Ethiopian and Oriental regions, but more
abundant in the former. The distribution of the genera is as
follows :
—
Psammopliis (16 sp.), ranges from West Africa to Persia and
Calcutta ; Ccelopeltis (1 sp.), North and West Africa ; Mimophis
(1 sp.), Madagascar ; Psammodynastes (2 sp.), Sikhim to Cochin
China, Borneo and the Philippine Islands ; and Dromophis (1
sp.), Tropical Africa.
Family 10.—EACHIODONTID^. (1 Genus, 2 Species.)
Neotropical
Sub-regions.
Nearctic
Sob-regions.
General Distribution.
Pal^arctic
Sub-regions.
Ethiopian
Sub-regions.
2.3
Oriental
Sdb-reoions.
Australian
Sub-regions.
The Eachiodontidae are a small and very isolated group of
snakes of doubtful affinities. The only genus, Dasypeltis (2 sp.),
is confined to West and South Africa.