. On the anatomy of vertebrates [electronic resource] . regates of cutane-ous follicles occur in mostBatrachia. In the land Sala-mander they form a poroustubercle behind each eye. Inmany Anoura the homologousglandular tubercles ( parotoidsof Giinther9) are conspicuousabove the tympanum (Alytidce, Bufonidm): they are enormous inBafo agua, and are situated on each side of the neck in Bafo calamita, besides the ordinary parotoids, there is a similarglandular tubercle on the upper side of the legs. The skin ofthe back in Kalophrynus is thick and glandular, like a Hylarana
. On the anatomy of vertebrates [electronic resource] . regates of cutane-ous follicles occur in mostBatrachia. In the land Sala-mander they form a poroustubercle behind each eye. Inmany Anoura the homologousglandular tubercles ( parotoidsof Giinther9) are conspicuousabove the tympanum (Alytidce, Bufonidm): they are enormous inBafo agua, and are situated on each side of the neck in Bafo calamita, besides the ordinary parotoids, there is a similarglandular tubercle on the upper side of the legs. The skin ofthe back in Kalophrynus is thick and glandular, like a Hylarana the skin has two glandular folds, one on each side ofthe back, usually of a white colour. Platymantis plicifera hasseveral pairs of such longitudinal folds or In Polypedates 1 xx. vol. iii. p. 277, prep. no. 2108. 2 cclxxix. tav. ii. fig. 7. 3 ccxcv. fig. 10. 4 Ib. fig. 7. 5 Ib. fig. 2. 6 Ib. fig. 3. » Ib. (6841), p. ccxcvi. p. 281. » Printed by mistake paratoid in his excellent Catalogue. 10 clxxv. p. 96, pi. viii. fig. TEGUMENTS OF REPTILES. 553 a glandular fold curves from above the tympanum to the axilla orshoulder. The skin takes an important share in respiration in theAnourous Batrachia,1 and there is a relation of e supply anddemand between the cutaneous follicles and the large allantoicbladder: the latter would seem to receive water directly by thecloaca, when the Frog may be in that element, and to serve as areservoir for the supply of cutaneous transpiration when thebatrachian is on dry The epiderm is periodically shed in Batrachia. It comes awayin shreds in the aquatic kinds. In the Toad the old epidermsplits along the middle line of both back and belly, and eachlateral half is wriggled off in folds towards the sides. It is then,by contortions of the trunk and limbs, loosened from the hind-limbs, and removed from them by the animal bringing first one andthen the other leg. forward under the arm, when, by withdrawingthe hind-leg,
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