. L'histoire naturelle. Zoologie. f fif. 8.-Notoirema^( Grenouille bouffant.) porarily au wateT--ils passent tout leur temps dans les arbres ou arbustes, et sont activés pour absorber l'humidité des feuilles à l'aide de glandes spéciales sur la peau de la surface inférieure du corps. Certaines des espèces qui habitent les plus chaudes du Brésil construire des nids en forme de bassin de boue dans les étangs pour la protection de l'oeufs, cette tâche relevant tout à la part de la femelle. Comme exemple d'un non-espèces arboricoles, la sauterelle de l'Amérique du Nord-{frog Acris gryllus) peuvent être mentionnées. Cette espèce, qui est l'unique memb

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. Natural history. Zoology. f iff. 8.—Pouched Frog (^Notoirema.) porarily to the wateT-—they pass their whole time in trees or shrubs, and are enabled to absorb the moisture from leaves by means of special glands on the skin of the under surface of the body. Some of the species inhabiting the hottest parts of Brazil construct basin- shaped nests of mud in ponds for the protection of the eggs, this task falling en- tirely to the share of the female. As an example of a non-arboreal species, the North American grasshopper-frog {Acris gryllus) may be mentioned. This species, which is the sole member of its genus, and is very closely allied to Hyla, spends its time among herbage in moist situations. More remarkable are the pouched frogs (Nototrema), with several species from Central and Western Tropical America, and one from Pernambuco. These frogs are also closely allied to Hyla, but the females have a large pouch in the skin of the back, with its aperture near the liinder end of the body. In this pouch the eggs—to the number of about fifteen^are deposited by the male, and there they develop into tad- poles. The gills of the tadpoles are protected by a special bell-like organ : and the young do not leave the chamber until they have assumed the adult form. A small number of genera constitute a family distinguished from the Hylidce by the much greater expansion of the extremities of the horizontal transverse processes of the sacral verte- Family bra, and also by the Pdobatidm. simple terminations of the end joint of the toes. The genera have a small geographical range, but the family occurs in North America, Europe, the Oriental coun- tries and Papua. In the country first named it is represented by several species of Scaphiopus, nearly allied to which are the two Central and South European species of Pelobates. The members of both these groups are burrowing frosts, with the hind-toes largely webbed, and in their move- ments they are somewhat inter- mediate between t

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