AKD BATEACHIANS OP THE SOLOMON ISLANDS. 59 



ARCIFERA. 

 HYLTD^. 

 Htla, Laiir. 



8. Htla maceops. (Plate XI. fig. 3.) 

 Hyla macrops, Bouleng. Ann. & Mag. N. H. (5) xii. 1883, p. 164. 



The tongue is shortly oval, slightly nicked and slightly free behind. The vomerine 

 teeth form two short transverse oval groups situated exactly in the middle between the 

 choanae. The latter are large, lai-ger than the Eustachian tubes. 



The head is depressed, a little broader than long ; in the male its length is contained 

 exactly three times in the total length, in the female it is contained three times and 

 one third to three times and two fifths. The snout is broadly rounded, not projecting, 

 as long as the diameter of the orbit ; the canthus rostralis is distinct and curved, and 

 the loreal region very oblique and concave ; the nostril is nearer the tip of the snout 

 than the orbit. The eye is large, especially in the male, and the interorbital space 

 plane and as broad as the upper eyelid. The tympanum is very distinct, circular, and 

 measures half the diameter of the eye, or slightly more ; its distance from the orbit 

 equals two fifths its diameter. 



The fore limb, if stretched backwards, reaches as far as the vent in the female, a 

 little beyond in the male. The disks of the fingers are of moderate size, smaller than 

 the tympanum, and a little larger than those of the toes. The first finger is the 

 shortest, and apparently opposable ; the second and fourth are equal ; a short web 

 unites the fingers at the base ; the subarticular tubercles are small. There are no 

 distinct metacarpal tubercles, and no projecting rudiment of poUex. In the breeding 

 male the inner side of the first finger is covered with blackish rugosities. The hind 

 limb is long and slender, the tibio-tarsal articulation reaching the tip of the snout or 

 nearly so far. The toes are moderate, three fourths webbed, with small subarticular 

 tubercles. Two metatarsal tubercles, the outer very small, or quite indistinct, the 

 inner small and elliptic. No tarsal fold. The skin is smooth, largely granulate on the 

 belly and under the thighs. 



The upper surfaces are uniform green, and the lower white ; the hinder side of the 

 thighs brown. 



A large fronto-parietal fontanella is present, and, as in many South-American Hylce, 

 the bones are green. The male has an internal subgular vocal sac. 



VOL. XII. — PAET II. No. 4. — Apil, 1886. 



