iRT. 11 NORTH AMERICAN TADPOLES — WRIGHT 57 



Over the belly in younger specimens is a full block of ochraceous sal- 

 mon or vinaceous tawny or vinaccous cinnamon. In older specimens 

 green-yellow or citron yellow or sometimes sea-foam yellow across the 

 belly or on the gill region. 



Tail. — Starting from the base of the tail there is a longitudinal 

 irregular blackish band along the musculature of the tail to its top 

 one-half of an inch or more from the tip of the tail. This band is 

 more or less interrupted, not a clearl}^ defined band as in Hylafemora- 

 lis or is Pseudacris ocularis or other Pseudacris species. Below the 

 bank is a clear area of warm buff or cream color or cartridge buff or 

 sea-foam yellow. In some specimens there is a similarly colored area 

 one-eighth to one-fourth inch long above the dark band. The very 

 lower edge of the musculature is with a fine purplish line. Just above 

 this edge are a few scattered collections of black dots. Upper and 

 lower crests heavily clouded with blackish dots, which in places assem- 

 ble in clusters. In younger tadpoles quite a prominent irregular 

 margin of blackish on the crests and the musculature band of black 

 more regular and not so interrupted. 



Ej^e ^\ith pupil rim prominent ochraceous salmon or vinaceous 

 tawny or vinaceous cinnamon. Rest of iris spotted with this color 

 and black. All in all it is a prominently colored eye. 



General appearance. — Tadpole small (35 mm.), full, and deep-bodied. 

 Tail medium to fairly long, tail tip acuminate or sharply acute. The 

 dorsal and ventral crests about equal. The dorsal crest is less than 

 the depth of the musculature and extends on to the body to the verti- 

 cal midway between hind legs and the spiracle. Spiracle sinistral 

 directed upward and backward, far below lateral axis, the spiracular 

 opening plainly visible and elliptical or round. Eye just touches or is 

 below the lateral axis, is in dorsal aspect on the lateral outline and in 

 consequence visible from the venter. Anus dextral, opening at or 

 only slightly above the lower edge of the ventral crest. Muciferous 

 crypts not distinct. 



Mouth parts. — Teeth |-. Upper labium fringed mth a continu- 

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

 beyond the end of the upper fringe for about two-sevenths to one- 

 fourth of the length of the upper fringe. The end of the second upper 

 labial row may be even or beyond the end of the fringe. The horny 

 beak is contained in upper fringe 1.5-1.7 times. Median space 

 between the lateral second upper labial row 1.25-2 in the length 

 of either lateral row. The lateral row is contained about two and 

 one-half times in the upper fringe. The inner papillae extend beneath 

 the third lower labial row of teeth, giving a two-rowed appearance of 

 papillae below it, like Eyla cinerea. The third row of labial teeth is 

 short (in one specimen subdivided) and is two-ninths to one-third 

 times (usually two-fifths, rarely as small as one-fifth) in the length of 



