1024 MR. G. A. BOULENGER OX 



yellow ; iris grey, bordered with orange-yellow ; lower eyelid 

 transparent, edged with turquoise-blue. 



11. Agalychnis spurrelli, sp. n. (PI. CIII.) 



Tongue oval, feebly emarginate behind. Vomerine teeth in 

 two strong, transverse or slightly oblique series on a level with 

 the front edge of the rather large choanfe. Head moderately 

 depressed, as long as broad or slightly broader than long ; snout 

 rounded, not projecting beyond the lower jaw ; canthus rostralis 

 feeble ; loreal region concave and very oblique ; interorbital space 

 broader than the upper eyelid ; tympanuixi close to the eye and 

 two-thirds to three-fourths its diameter. Fingers much flattened 

 and nearly entirely webbed, the disks nearly as large as the eye 

 or about two-thirds its size : toes rather short, much flattened, 

 entirely webbed (three-fourths webbed in the young), the disks a 

 little smaller than those of the fingers ; subarticular tubercles 

 very prominent. The tibio-tarsal articulation reaches between 

 the eye and the tip of the snout. Skin smooth, granular on the 

 belly and on the basal half of the lower surface of the thigh ; a 

 regular series of granules extends along the whole length of the 

 lower surface of the thigh ; a narrow dermal fold along the outer 

 edge of the forearm, the inner edge of the tarsus, and across the 

 heel ; a few scattered (white) flat warts on the back. Green above, 

 the dorsal warts, two to nine in number and irregularly disposed, 

 white, edged with violet-black ; belly yellowish white ; iris ruby- 

 red ; lower eyelid with an open mesh work of golden lines. Male 

 without vocal sac, with a patch of black nuptial asperities on the 

 upper surface of the inner finger. 



From snout to vent 95 mm. 



Yery closely allied to the Central American A, viorelsti 

 A. Dum., this handsome frog differs in the more extensively 

 webbed digits, the presence of white warts on the back, and the 

 absence of vocal sac in the male. 



Four specimens are in the collection. The fii^st was reported 

 \<o Dr. Spurrell to have been found at the top of a high tree that 

 ha,d been felled, on March 30th. On April 2nd Dr. Spurrell took 

 a pair in embrace on a leaf overhanging a pool of water two feet 

 below ; from the sketch accompanying his notes, the amplexus is 

 similar to that of Hyla arhorea. The pair were in the act of 

 breeding, and the eggs, as they were extruded, were being fixed 

 to the upper surface of the terminal thii"d of the leaf, in double 

 rows following more or less regularly the venation, the very 

 prominent ribs affording a support for their attachment. On the 

 leaf sent with the specimens, the breeding operations of Avhich 

 were suddenly interrupted, 59 eggs are attached, and 7 more 

 adhere to the right foot of the female, showing that she uses her 

 feet for the purpose of fixing the eggs. 



According to a sketch by Dr. Spurrell, which is here re- 

 produced (text-fig. 177), another leaf on the same stalk was 

 alreadj^ entirely beset with eggs (laid by the same female ?) 



