4G PROCEEDINGS OF THE ACADEMY OP 



Dimensions of a female. From end of muzzle to posterior border of casque 

 2" 4'"; least width of frontal region 1"5'"; greatest width of casque poste- 

 riorly 2"; from casque to vent 5 // 8 /// ; anterior extremity 4" 6"'; posterior 

 extremity 10" 8"'. Length of head and body of a ^ 5" 6""'. 



In spirits, brown ; a blackish band or spot behind tympanum, one across 

 casque behind interorbital space, one on anterior dorsal, and some transverse 

 blackish lines on scapular region. Extremital bands with pale borders ; sides 

 brown-spotted ; a large brown, pale-bordered anal spot. 



Habitat. Jamaica, Prof. C. B. Adams. Mus. Smithsonian, (62G8.) Academy 

 Nat. Sciences. 



T. lichenatus Gosse. 



Head short, broadly rounded in outline ; length from end of muzzle to most 

 distant point of posterior margin of casque much less than breadth of mouth at 

 middle of orbits; about equal to distance from one supratympanic ridge to the 

 other. Frontal region very concave ; profile of muzzle nearly vertical. Can- 

 thus rostralis short, very concave, forming a sharp elevated ridge posteriorly, 

 with a short descending branch nearer the orbit; almost obsolete near the ex- 

 ternal nares ; shorter than interorbital breadth. Casque with an elevated, 

 crenulate, doubly-convex posterior margin ; rugose, especially upon the super- 

 ciliary region. Eyes very large and prominent, three times the extent of the 

 tympanum ; the latter is obliquely elliptic, contracted antero-superiorly, and 

 bounded above by a crenulate arched ridge. Tongue broad, not emarginate. 

 Vomerine teeth in two short, curved, well-separated series, between the poste- 

 rior parts of the very large internal nares. Ostia pharyngea relatively small. 

 Exterior anterior digits one-third palmate; palettes as large as tympanum. 

 Heel reaching anterior border of orbit. Skin of upper surfaces roughly, medi- 

 ally sparsely, tuberculous ; some prominent elevations near vent, two on the 

 heel, and several on the tarsus and antebrachium. 



Dimensions of (-J 1 . Length from end of muzzle to posterior border of casque 

 o" ; from latter point to vent 7" 4'"; breadth of interorbital space 1" 7"'; 

 length of anterior extremity C" 2"'; of posterior, 14" 4"'. 



Color in spirits yellowish brown, with deep brown variations, most distinctly 

 on the occipital, interscapular and the superior lateral regions ; sides and gular 

 region coarsely brown-spotted. Extremities, including tarsus and foot, cross- 

 banded. Under surfaces yellowish. 



Habitat. Jamaica, Gosse, Adams. Mus. Smithsonian ; Amherst, Mass. 



Mr. Gosse has given an interesting account of this very singular tree-frog in 

 his " Naturalist's Sojourn in Jamaica," a work which is ever recurred to with 

 pleasure. He has also described the colors as they appear during life, which 

 are brilliant : they scarcely assist the student in separating the species when 

 rendered unnatural by preservation in alcohol. 



T. anochlorus Gosse. 



Head elongate, maxillary outlines more accuminate than in the preceding 

 species. Length from end of muzzle to most distant point of posterior margin 

 of casque equal to or greater than distance from alveolar ridge to ridge at middle of 

 orbits, greater than distance from one supratympanic ridge to the other. Fron- 

 tal region very concave ; profile of muzzle vertical. Canthus rostralis as long 

 as interorbital breadth ; it forms an acute elevated ridge, which has its median 

 portion nearly transverse, and making nearly right angles with the anterior and 

 posterior portions. Posterior outline of casque much elevated, cordiform, 

 with radiating ridges. A supratympanic serrate ridge. Eyes less prominent, 

 twice the extent of the oval tympanum. Internal nares very large ; vomerine 

 teeth in short convex series between them. Tongue a little broader than long, 

 entire. External anterior digits nearly half-webbed. Heel extending to an- 

 terior margin of orbit. Skin of upper surfaces sparsely tuberculous, promi- 



[Mar. 



