62 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 74 



tip of tail (both upper and lower crests) clear of spots. Area of crest 

 next to musculature clear in upper and lower crests. Light area of 

 tail crests more or less suffused with light coral red or coral red, 

 suggestive of H. versicolor tadpoles. 



Iris, the outer part olivaceous black to dull greenish black, inner 

 circle and part of rest light vinaceous fawn, buff pink or light ochra- 

 ceous salmon. 



General appearance. — Tadpole small (36 mm.), full, and [deep 

 bodied. Tail medium to fairly long, tip acuminate and very pointed. 

 Tail with a prominent fiagellum, the dorsal and ventral crests of which 

 are usually colorless. Tail deep and dorsal and ventral crests well 

 developed. The dorsal crest may exceed the musculature in depth 

 and extends on to the body to the vertical of the spiracle or halfway 

 between spiracle and eye. Spiracle sinistral, directed more back- 

 ward than upward, far below the lateral axis and visible as an ellip- 

 tical opening. Eye on the lateral axis, in dorsal aspect on the lateral 

 outline and in consequence visible from the venter. Anus dextral, 

 very near the level of the edge of the lower crest. Muciferous crypts 

 indistinct. 



Mouth parts. — Teeth f . Upper labium fringed with a continuous 

 row of labial teeth; the papillae extend above and inward beyond 

 the end of the upper fringe for about four-elevenths to two-fifths 

 of the length of the upper fringe. The end of the seconci row us- 

 ually is even with the end of the upper fringe. The horny beak is 

 contained about 2.0 times in the upper fringe. The median space 

 between the lateral second upper labial very short, six to ten times 

 the length of either lateral row. The inner papillae extend under 

 the third row of lower labial teeth making at least two rows of 

 papillae across the lower labial border. In the lower labial corner 

 there is a heavy papillary series of four or five rows like H. versicolor 

 or H. squirella. The lower third labial is long and is usually about 

 1.10-1.2 in the first or second row, longer than in H. squirella and is 

 larger than the horny beak. The first and second rows are about equal 

 and 1.4-1.6 greater than the horny beak. This species, like Hyla 

 versicolor and Hyla squirella has a very angulate upper fringe at its 

 middle. 



Measurements. — Length of body (8.0-12.0 mm.) in tail (13.5-2.40 

 mm.) 1.3-2.8, average 1.75. Width (4.5-6.5 mm.) of body in its 

 own length 1.6-2.1, average 1.8. Depth (4.5-7.0 mm.) of body 

 usually slightly greater than body width (4.5-6.5 mm.). Depth of 

 body 1.33-2.2 in body length, average 1.68. Depth (4.5-10 mm.) 

 of tail in length of tail 1.6-2.75, average 2.25. Muscular part (2.5-4.5 

 mm.) 1.8-2.3 in depth of tail, average 2.1. Spiracle 1.1-1.4 nearer 

 base of hind legs or vent region (5.0-6.0 mm.) than the tip of the 

 snout (5.5-8.0 mm.), average 1.24. Spiracle 1.5-2.5 nearer eye (2.0- 



