FROGS OF THE GENUS MANTIDACT YLUS. 



259 



b. Tibio-tarsal articulation reaching eye or between eye and nostril ; toes 



f to f webbed ; tympanum f to once diameter of eye. 

 Loreal region oblique ; tympanum not more than 

 If times its distance from the eye ; tibia 2f to 

 3 times as long as broad ; inner metatarsal 

 tubercle \ to 3 length of inner toe; back with or 

 without small elongate warts ; belly perfectly 



smooth M. ambohimitombi, sp. n. 



Loreal region oblique ; tympanum 2 to 3 times its 

 distance from the eye; tibia 3 to 3f times as 

 long as broad ; inner metatarsal tubercle \ to J 

 length of inner toe; back with elongate warts 

 or glandular folds ; belly granulate on the sides 



and behind M. ulcerosus Boettg. 1880. 



Loreal region nearly vertical ; inner metatarsal 

 tuberele f length of inner toe; two glandular 



folds along the back M. bellyi Mocquard, 1895. 



c. Tibio-tarsal articulation reaching be- 



yond tip of snout ; toes f webbed ; 

 tympanum a little smaller than the 

 eye ; three glandular folds along the 



back ; belly smooth M. opiparis Peracca, 1893. 



3. Head a little longer than broad ; snout pointed, strongly projecting beyond 

 the mouth ; tibio-tarsal articulation reaching anterior border of eye or 

 nostril; toes not more than 5 webbed; belly smooth. 

 Tympanum larger than the eye; first finger 

 shorter than second; two glandular folds along 



the back M. <zrumnalis Peracca, 1893. 



Tympanum about \ diameter of eye; first finger as 



long as or slightly shorter than second ; back [Hew. 1913. 



with large glands '. M. glandulosus Meth. & 



C. Discs of fingers rather large, at least nearly twice as broad as the penultimate 

 joint, as large as or larger than those of the toes. 



1. Belly perfectly smooth ; tibio-tarsal articulation reaching e3 r e ; heels meet- 



ing ; tibia 3 times as long as broad, 2 to 2^ times in length from snout to 

 vent ; toes entirely or nearly entirely webbed ; first finger much shorter 

 than second ; loreal region nearly vertical. 

 Head longer than broad ; snout pointed, strongly 

 projecting beyond the mouth ; tympanum f 



diameter of eye M. majori Blgr. 1896. 



Head as long as broad ; snout rounded or obtusely 

 pointed, moderately projecting; tympanum | to 



I diameter of eye M. cowanii Blgr. 1882. 



2. Belly granulate behind and on the sides only ; heels overlapping ; tibia 



3f to 4 times as long as broad ; toes f to nearly entirely webbed ; inner 

 metatarsal tubercle \ to | length of inner toe ; first finger a little shorter 

 than second ; tympanum f to f diameter of eye ; loreal region nearly 

 vertical . 



Tibio-tarsal articulation reaching eye, nostril, or 

 tip of snout; tibia If to 2 times in length from 

 snout to vent ; tongue usually with a conical 



papilla in the middle of the anterior third M. lugubris A. Dum. 1853*. 



Tibio-tarsal articulation reaching tip of snout or 

 beyond ; tibia If times in length from snout to 



vent M.flavicrus Blgr. 1889. 



3. Belly granulate ; heels strongly overlapping. 



a. Tibio-tarsal articulation reaching eye or tip of snout ; tibia 3f to 

 4f times as long as broad, If to 2 times in length from snout to vent ; 

 tympanum i to § diameter of eye; loreal region nearly vertical. 

 Toes f webbed ; ipner metatarsal tubercle small, 

 feebly prominent, \ length of inner toe ; a narrow 



dorso-lateral glandular fold 31. granulatus Boettg. 1884. 



* Includes M. femoralis Blgr., 1882, and ambreensis Mocquard, 1895. 



