The Geographical Distribution of Animals, Volume 2 / With a study of the relations of living and extinct faunas as elucidating the past changes of the Earth's surface

by Alfred Russel Wallace

General Distribution.
Neotropical Sub-regions.	Nearctic Sub-regions.	Palæarctic Sub-regions.	Ethiopian Sub-regions.	Oriental Sub-regions.	Australian Sub-regions.
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The Xenorhinidæ may be characterised as Toads with perfect ears and tongue free in front. The only species of Xenorhina is a native of New Guinea.

Family 12.—ENGYSTOMIDÆ. (15 Genera, 31 Species.)

General Distribution.
Neotropical Sub-regions.	Nearctic Sub-regions.	Palæarctic Sub-regions.	Ethiopian Sub-regions.	Oriental Sub-regions.	Australian Sub-regions.
1. 2. 3 —	— — 3 —	— — — —	— 2. 3 —	1. 2. 3. 4	— 2 — —

The Engystomidæ are Toads without neck-glands and with the tongue tied in front. They are most abundant in the Oriental and Neotropical regions, especially in the latter, which contains about half the known species, with isolated species in Australia, Africa, and the Southern States of North America. They appear to be the remnant of a once extensive and universally distributed group, which has maintained itself in two remote regions, but is dying out everywhere else. The genera are:—

Engystoma (9 sp.), Carolina to La Plata, with one species in South China; Diplopelma (3 sp.), South India to China and Java; Cacopus (2 sp.), Central India; Glyphoglossus (1 sp.), Pegu; Callula (4 sp.), Sikhim, Ceylon, China, and Borneo; Brachymerus (1 sp.), South Africa; Adenomera (1 sp.), Brazil; Pachybatrachus (1 sp.), Australia; Breviceps (2 sp.), South and West Africa; Chelydobatrachus (1 sp.), West Australia; Hypopachus (1 sp.), Costa Rica; Rhinoderma (1 sp.), Chili; Atelopus (1 sp.), Cayenne and Peru; Copea (1 sp.), South America; Paludicola (1 sp.), New Granada.

Family 13.—BOMBINATORIDÆ. (8 Genera, 9 Species.)

General Distribution.
Neotropical Sub-regions.	Nearctic Sub-regions.	Palæarctic Sub-regions.	Ethiopian Sub-regions.	Oriental Sub-regions.	Australian Sub-regions.
1. 2 — —	— — — —	1. 2 — —	— — — —	— — — —	— — — 4

The Bombinatoridæ are a family of Frogs which have imperfect ears and no neck-glands, and they have a very peculiar and interesting distribution, being confined to Central and South Europe, the southern part of South America, and New Zealand. They consist of many isolated groups forming five separate sub-families. The genera are:—

Bombinator, Central Europe and Italy; Pelobates and Didocus, Central Europe and Spain; Telmatobius (2 sp.), Peru and Brazil; Alsodes, Chonos Archipelago; Cacotus, Chili; Liopelma, New Zealand; Nannophryne, Straits of Magellan.