118 EANID^. 



above, or light with symmetrical dark markings, with or without a 

 light vertebral line and another along the hind part of the thighs ; 

 limbs cross-barred. 

 W. Africa. 



5. Arthroleptis boettgeri. (Plate XI. fig. 6.) 



Head moderate ; tympanum hidden. Third finger scarcely more 

 than once and a half the length of second ; tips of fingers and toes 

 not dilated ; two metatarsal tubercles. The hind limb being carried 

 forwards along the body, the tibio-tarsal articulation marks the 

 shoulder. Skin perfectly smooth ; a curved fold from the eye to the 

 shoulder. Olive above ; a light line from below the eye to the 

 shoulder ; in some specimens, a light vertebral line and a broad 

 light stripe from the scapular region to the groin ; transversely 

 dilated dark spots on the legs ; belly generally with round black 

 spots, inferior surface of limbs with dark vermiculations. Male 

 with a large external subgular vocal sac. From snout to vent 

 19 millim. 



Kaffraria. n A> 



a-d. S. ^V4ek, Kaffraria. '-^ XM. Weals, Esq. [P.]. 



This species is named in honour of Dr. 0. Bocttger, of Frankfurt 

 a. M. 



6. Arthroleptis calcaratus. 



Hemimantis calcaratus, Peters, Man. Bed. Ac. 186.3, p. 452. 

 Ai'tliroleplis calcaratus, Peters, Mon. Berl. Ac. 1875, p. 210. 



Head moderate ; tympanum hidden, one third the width of the 

 ej-e. Third finger once and a half tlie length of second; fingers 

 and toes with distinct disks ; three metatarsal tubercles. The hind 

 limb being carried forwards along the body, the tibio-tarsal articu- 

 lation reaches nearly the tip of the snout. Upper surface of body 

 with a few flat warts ; a spine-line dermal appendage on the liind 

 part of each eyelid ; lower surlaces quite smooth. Brown above, 

 black-spotted ; sometimes a broad yellow vertebral line. 



Boutry, coast of Guinea. 



1. Arthroleptis horridus. 

 Hemimantis liorrida, Boe.tlijer, Zool. Anz. 18tO, p. 282. 



Head large, distinctly broader than the body ; tympanum slightly 

 distinct, one fourth the size of the orbit. Fingers and toes with 

 distinct disks, those of the latter smaller ; a single metatarsal 

 tubercle. Skin tubercular. Grey above ; three transverse black 

 stripes on the back ; limbs cross-barred ; sides of belly black, with 

 a few large white spots. 



Nossi Be, Madagascar. 



