i 



10 Lars G-abriel Andersson. 



39. Phrynobatrachus perpalmatus Boul. One specimen. El 

 G-erassi; about 50 miles south of Khartoum. Length from snout 

 to vent 15 mm. Femur (distance from vent to knee) 7,8 mm; 

 tibia 8 mm; tarsus with the 4 th toe 10 mm; length of the 

 whole fore limb 9 mm; from nose to eye 2,2 mm; the diameter 

 of the eye 1,8 mm; the breadth of the head at the corner of 

 the mouth 5,3 mm. 



The specimen corresponds very well to Boulenger's de 

 scription of the type-specimen in Proc. Zool. Soc. of Londo 

 1898 p. 479 with the exception of a little variation in coulour; 

 "the dark light-edged streak" on the sides he mentions are not 

 to be seen here, the sides and the back being of uniform greyish 

 olive colour with dark markings. Two dark crossbands are to 

 be found on the thighs and three on the tibia. Also "the wavy 

 blackish band on hinder side of thighs" is indistinct, but as the 

 specimen has, in other respects, all the characters of Phryno 

 batrachus perpalmatus, I do not hesitate to refer it to that spe 

 cies, which consequently has a wide geographical range, Boulen 

 ger's specimens being found about Lake Mweru and this one 

 much further north, 50 miles south of Khartoum. 



40. Phrynobatrachus natalensis Smith. Forma gracilis. 

 Nova forma. 



Four small Phrynobatrachus species collected at the termina 

 Station G-hrab el Aish South of Kaka on the White Nile can 

 not be identified with any species hitherto described. In my 

 opinion most corresponding to the old form Phrynobatrachus 

 natalensis as well as to Phrynobatrachus ranoides Boul. which 

 both species show a remarkable likeness to each other, I refei 

 it to the former from which it principally differs in having th< 

 hind limbs somewhat longer and a more slender body. On a future 

 revision of the genus Phrynobatrachus, it will perhaps be clear 

 that these differences are only individual variations of too smal 

 a value as specific distinctions, and likewise some forms of latei 

 date would probably be referred to any species formerly described. 

 Tongue with a small free papilla. Habit slender, snout 

 short, as long as the diameter of the eye. Interorbital spac( 

 as broad as the upper eyelid; tympanum distinct only at the 



