OCR Text |
Show 792 MR. G, A. BOULENGER O N T H E [June 20; apart on the sacral region; tympanum usually yellow. Some specimens, from Florida, whitish, handsomely marbled with dark brown (S. albus Garm.). Lower parts white, carneous under the thighs ; metatarsal tubercle and tips of inner toes black. Iris brassy yellow or golden, veined with black, or with a black transverse bar forming a cross wdth the vertical pupil. Male with an internal vocal sac, opening into the mouth by a slit on each side of the tongue. Inner side of the two or three inner fingers, during the breeding-season, with bands of h ack asperities. MEASUREMENTS (in millimetres). d • 9 • From snout to vent 67 73 Length of head 20 22 Width of head 28 29 Diameter of eye 8 Interorbital width 7 9 From eye to nostril 5*5 6 „ „ „ end of snout 10 12 Fore limb 33 36 Hind limb 72 78 Tibia 20 22 Metatarsal tubercle 5 6 Inner toe (from tubercle) 4 5 SKELETON. Skull strongly ossified, studded with granular asperities above and at the sides. Nasals large, in contact along their entire length, and joining the fronto-parietals, the ethmoid being entirely hidden above: fronto-parietals broad, expanded into obtusely angular wings at the posterior borders of the orbits ; squamosals with the zygomatic process enlarged, plate-like, and suturally united with an ascending process of the maxillary. Ethmoid produced forwards, confluent with the ossified nasal capsule, nearly reaching the praBmaxillaries ; vomers moderately large, narrowly separated from each other; palatines strong; parasphenoid JL-shaped, not reaching to between the palatines ; pterygoids extending forwards to the palatines, their inner branch joining the parasphenoid. A well-developed columella auris. Teeth with very obtuse, rounded crowns. Mandible with the mento-meckelian distinct on the inner side only. Hyoid apparatus not unlike that of Pelobates, with detached cornua and a fenestra on each side, but the anterior processes are not turned inwards, or, rather, they may be regarded as absent, the anterior fenestrated portion of the hyoid representing tbe anterior wthiynrgo h•*y.a lTpsoh raetr iepo oinsn t oec1rf ooSn -ettleah tcEe'ti ed craeaetwlro aottpdhor,eho ycbPaea.lss s Zec ..oi Ssr. n eu1l8 o9fn7ug,sa etpde. 5wa7in7td.h tthhee o lsasitfeireadl |