NTCTIBATBACHUS. 467 



a small inner metatarsal tubercle. The tibio-tarsal articulation 

 marks the posterior border or the centre of the eye. Skin smooth 

 above and beneath ; a narrow glandular lateral fold, commencing 

 some distance from the eye ; a fold from the eye to the shoulder. 

 Brown above, with rather indistinct darker markings, the most 

 constant being a broad chevron between the eyes ; sides of head 

 blackish brown ; limbs cross-barred ; hinder side of thighs blackish 

 brown ; groin and front of thighs frequently rose-coloured ; brown 

 beneath, throat and chest dotted, belly and lower surface of hind 

 limbs marbled with whitish. Male with two internal vocal sacs. 



From snout to vent I'l inches. 



Hab. Malabar, in forests. 



Genus NYCTIBATRACHUS, 

 Boulenger, Cat. Batr. Sal. p. 113, 1882. 



Pupil vertical. Tongue free and deeply notched behind. Vo- 

 inerine teeth. Tympanum hidden. Fingers free, toes webbed, 

 the tips dilated into small disks. Outer metatarsals separated by 

 web. Omosternum and sternum with a bony style. Phalanges 

 normal, distal bifurcate. 



Distribution. Southern India. 



Synopsis of the Species. 

 Toes almost entirely webbed N. major, p. 



Toes half webbed N. pygmceus, p. 467. 



49. Nyctibatrachus pygmaus. 



Rana pyginsea, Gilnth. P. Z. S. 1875, p. 568. 



Xvctibatrachus pygmseus, Bouleny. Cat. Batr. Sal. p. 113, pi. xii, 

 *fig. 1. 



Vomerine teeth in two small oblique series behind the level of 

 the choauae. Habit stout. Snout very short, without canthus 

 rostralis ; eyes very prominent, obliquely directed forwards and 

 upwards ; upper eyelid very narrow ; interorbital space much 

 broader than the upper eyelid. Fingers moderate, first shorter 

 than second; toes moderate, half webbed, the tips swollen into 

 very small disks ; subarticular tubercles not much developed ; a 

 small, blunt, oval, inner metatarsal tubercle. The tarso-metatarsal 

 articulation reaches the eye or slightly beyond. Skin smooth, 

 with some glandular folds on the head and the front part of the 

 back ; a very distinct, oblique fold beneath the eye, and a vertical 

 one on the tip of the snout. Dark brown above, with rather 

 indistinct blackish markings ; light brown beneath. Male without 

 vocal sacs. 



From snout to vent 1 inch. 



Hab. Anaimalai Hills. 



