415 



Description. — Little can be added to the diagnosis of this beau- 

 tiful species, the colours of which are exceedingly well preserved. 

 The upper part of the head is entirely covered with keeled scales, 

 those on the canthus rostralis being rather larger. The eyebrow is 

 covered with an elliptical shield, separated from the orbital margin 

 by a series of rough scales, as in Trigonocephalies schlegelii. The 

 scales of the trunk and tail are strongly keeled. One hundred and 

 fifty-four abdominal, one entire anal, and sixty-five undivided caudal 

 plates. The yellow median line on the belly disappears on the tail, 

 where the lateral streak also is interrupted by the red spots. 



. 1. Cyclorhamphus marmoratus, Dum. and Bibr. p. 455. 



2. Bufo agua, Latr. 



3. Bufo intermedius, Gthr. 



4. Bufo ceruleostictus, n. sp. 



Diagnosis. — Crown of the head without bony enlargement, broad, 

 flat. Parotids narrow, oblong, parallel to the vertebral line ; tym- 

 panum not visible externally. Toes half-webbed ; the third finger 

 longer than the fourth. Tarsus with a cutaneous fold. Uniform 

 brownish- black ; the posterior part of the sides and the extremities 

 with small, smooth, bluish tubercles. 



Description. — The skin of this species is comparatively smooth, 

 there being small and smooth tubercles on the sides of the body only 

 and on the extremities, a few also on the upper eyelids. The head 

 is large and broad, with the sides nearly vertical, with the canthus 

 rostralis angular, and with the upper surface quite flat. The snout 

 is rather short and truncated. The tympanum is not visible ; the 

 interior nostrils and the eustachian tubes are small. The tongue is 

 ovate, with the posterior half free. The parotid is narrow, elongate, 

 nearly as long as the head, and situated in a line parallel to the ver- 

 tebral column. The extremities are more slender than usually in 

 this genus ; the total length of the anterior extremity equals the 

 distance between the vent and the ear. The first (interior) finger 

 is the thickest, longer than the second, but rather shorter than the 

 fourth ; the third and fourth are united at the base, the third being 

 the longest ; the metacarpus with two tubercles, the interior of which 

 at the root of the thumb is elongate, the exterior broad, rounded. 

 The length of the posterior extremity, from the hip to the carpal 

 joint, equals the length of the animal from the snout to the vent ; 



inches, lines. 



Length of the head . 



— of the trunk 



of the tail 



Total length 



0 9 



13 0 



3 0 



16 9 



BATRACHIA. 



