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Show 488 DR. A. G U N T H E R O N N E W B A T R A C H I A N S . [June 25, a little more than the distance between the vent and heel. The third and fifth toes equal in length ; metatarsus with two small tubercles, tarsus without fold. Greyish olive, a black band runs from the nostril through the eye to behind the tympanum ; an indistinct blackish band between the eyes ; anal region blackish, sometimes a black spot in the centre of the back. W e possess two specimens, of nearly the same size-one received from Mexico through M . Salle, and'the other from Mr. Salvin's Vera-Paz collection. Length of body 28 millims., of hind limb 46 millims., of fourth toe (from metatarsus) 13 millims. HYLA DASYNOTUS. (Plate XXXVIII. fig. 2.) Habit slender; snout very short, depressed, obtuse in front, without canthus rostralis ; loreal region concave. Vomerine teeth in two small groups between the inner nostrils, which are small. Tongue slightly notched behind, with a median groove. Eye large, prominent. Tympanum very small, indistinct. Disks moderately developed ; fingers half webbed ; toes nearly entirely webbed. A narrow white fringe along the forearm, and along the tarsus. The skin from the occiput along the spine to the sacral vertebra is immoveable and covered with warty excrescences; otherwise the head and body are smooth. The length of the body is rather more than the distance of the vent from the metatarsus. Brownish above, the warty parts of a darker colour; sides of the abdomen marbled with black and white. A black streak along the canthus rostralis and above the tympanum, a black spot anteriorly below the eye ; a dark cross band between the eyes. Femur deep black, with white ovate spots or cross bars ; fore limbs and lower legs with brown cross bands. Lower parts whitish, throat and especially gular sacs brown. One male specimen, with a pair of large gular sacs, from Brazil ; it is 32 millims. long, the hind limb being 44 millims. HYLA RHODOPORUS. (Plate XXXVII. fig. 4.) This species belongs to that group in which the vomerine teeth are placed in two curved series, forming together an arch with the convexity towards the front; however, the series are less distinctly curved than in the other species, this species being less developed in size than its natural allies. It is very closely allied to H. albo-marginata or H. infulata. The snout is much depressed, with the canthus rostralis very obtuse, and the loreal region concave. Eye of moderate size, shorter than the snout. Choanae wide. Tongue scarcely notched behind ; tympanum two-thirds the size of the eye. Fingers very slightly webbed ; toes two-thirds webbed. The length of the body equals the distance between vent and heel, and is thrice the length of the foot. Skin smooth, with numerous minute pores on the upper parts. Light olive-coloured, each pore with a minute rose-coloured dot; the dots confluent into spots on the eyelids; no band along the canthus rostralis or on the legs, the exposed parts of which are coloured like the hack. Uniform whitish below. |