1082 ME. E. G. BOULENGER ON A 



EXPLANATION OF THE PLATES. 

 Plate LXIf. 



Fig. 1. Side view of skull of MoscJiops capensis Broom, f nat. size. Atiff. Angular; 

 .4)-^. Articular ; J^h. Ji^gal; 0.0, Opisthotic ; Q^f. Quadrate ; Q.J. Quadr.ato- 

 jugal; S.^w^. Surangvilar : S'm.i\ Septomaxillary ; S*/. Squamosal. 



2. Front part of skull of Taognathus megalodon Broom. Nat. size. 



3. Under view of lower jaw of Tao</»a^7njs OTe(/a?ofto» Broom. Nat. size. The 



canine of the right side is seen in oblique section, 



4. Section across lower jaw of Taognathus megalodon Broom. Nat. size. 



5. Upper view of snout of Ictidognathiis parvidens Broom. Nat. size. 



PtATE LXIII. 



Fig.. 6. Side view of skull of Dicelurodon icliaitsi Broom. Nat. size. 



7. Section across lower jaw of DicBlurodon whaitsi Broom, at the crack 



indicated in figure 6. Nat. size. 



8. Upper view of mandible of JEliirosatirus whaitsi Broom. Nat. size. 



9. Side view of snout of ^'Eluromurvs tenuirostris Broom. | nat. size, 



10. Side view of snout of Oiidenodon bolorhinus Broom, j nat. size. 



11. Side view of snoi^t oi' Ictidognathus parvidens Broom. Nat. size. 



12. Side view of snout of JSriphostoma microdon Broom, f nat. size. 



52. On a new Tree-Frog fi'om Trinidad, living in the Society's 

 Gardens. By Edward G. Boulenger, Curator of 

 Reptiles to the Society *. 



[Received September 20, 1911 : Read October 24, 1911.] 



(Plate LXIY.t) 



In July last the Zoological Society received from Dr. Lewis 

 H. Gough an interesting collection of Batrachians and Reptiles 

 brought back by him from Trinidad, Among these I found 

 examples of three frogs which had not been previovisly recorded 

 from Trinidad, viz. : Hyla venulosa Daud., Hyla rubra Daud., and 

 one which is evidently undescribed, and for which I propose the 

 name of Hyla goughi, after its discoverer. This little Hyla, one 

 of the smallest of the genus, was fortunately represented by 

 numerous specimens, which have enabled me to observe the wide 

 and rapid changes of colour which this species undergoes, and of 

 which an idea can be gained from the annexed coloured plate 

 made by Mr. J. Green at the Gardens under my direction, 



Hyla goughi, sp, n, (PL LXIY.) 



Tongvie cii'cular, slightly nicked and slightly free behind, 

 "Vomerine teeth in two rounded groups between the choanae. 

 Head slightly broader than long ; siiout rounded, a little shorter 

 than the eye, which is large and very prominent. Canthus 

 rostraiis feebly marked. Loreal region very slightly concave. 



Communicated by the Secretary. 



For explanation of the Plate see p. 1083. 



