Horváth Géza (szerk.): A Magyar Természettudományi Múzeum évkönyve 2. (Budapest 1904)
Méhely, L.: Investigations on Paraguayan Batrachians
208 TV JU L I U S V. MADARÁSZ. Outer metatarsals united. Maxillaries separated by the praemaxillaries.* Precoracoids ossified, in the middle united with a rhomboidal cartilaginous plate (pl. XIII. fig. 1) ; no omosternum ; sternum an anchor-shaped cartilaginous plate. Diapophyses of sacral vertebra strongly dilated. The end of terminal phalanges on its lower surface with a shovel-shaped dilatation (pl. XIII. fig. °2). Differing from Stereocyclops COPE by the erect pupil, the absence of the ossified annulus round the cornea and the less dilated sternum ; from Hypopachus KEFERST. by the absence of the dermal ridge between the choanae. the entirely free fingers* and toes, the strong precoracoids** and the much dilated diapophyses of sacral vertebra. 1. Dermatonotus Mülleri BTTGR. (Pl. XIII, tig. t —3.) Engystoma Mülleri BOETTGER, Zeitschr. f. Naturw., LVIII, 1885, p. 241 ; BOULENGER, Ann. & Mag. Nat. Hist., (6) XIII, 1894, p. 347. Hi/popachus Mülleri PERACCA, Boll. Mus. Torino, X, 1895, p. 23. Habit stout. Snout short, subacuminate. moderately prominent, once and a half the diameter of the eye. Nostril close to the tip of the snout, its distance from the anterior corner of the orbit equal the two thirds diameter of the latter. Eye rather small, little prominent. Frenal region deeply sunk. Interorbital space twice to twice and a half broad than the upper eyelid. Fore limb longer than its distance from the tip of the snout. Fingers moderately elongate ; first much shorter than second, the latter nearly equal with the fourth. Hind limb stout ; the tibio-tarsal articulation does not reach the shoulder. Toes without web, the tips blunt; subarticular tubercles distinct; inner metatarsal tubercle oval, very prominent, the outer absent. Fifth toe shorter than third. Skin smooth, on the back strongly thickened, leatherlike, porous. A strong fold across the head, behind the eyes, continued on the sides down to the axilla. Coloration. Olive-grey above, on the adult immaculate, on the young with dark vermiculations ; sides, hinder side of thighs, fore and hind limbs * Belongs to my group Eleutherognathinae (Természetrajzi Füzetek, XXIV, 1901, p. 237). ** Already for this reason it is not possible to unite this genus with Hypopachus, for, as Mr. BOULENGER writes «precoracoids are very weak» (Cat. Batr. Sal., 1882, p 150) and Dr. GÜNTHER also remarks «Differing from Engystoma by the presence of very small precoracoids» (Biologia Centrali-Americana, 1902, p. 211).
