ART. 11 NORTH AMERICAN TADPOLES — WRIGHT 51 



Mouth parts. — Teeth -|. Upper labium fringed with a continuous 

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

 the end of the upper fringe for one-fourth to one-fifth of the length 

 of the upper fringe. The horny beak is contained 1.5-1.75 times 

 in the upper fringe. The median space between the second lateral 

 upper labial rows of teeth very short, contained 2.5 or 3.7 times in 

 the length of either row. Upper fringe somewhat angulate in the 

 middle. Inner papillae quite numerous, two or three rows on either 

 end of two lower labial rows, and inside the lower labial border, 

 even beneath the third labial row. Third lower labial row about 

 one-third of the second or first lower labial row. The lower first 

 and second row about 1,25-1.6 times the horny beak. 



Measurements. — Length of body (9.2-11.0 mm.) in tail (15.8-22.4 

 mm.) 1.55-2.25, average 1.8. Width (5.6-7.4 mm.) of body in its 

 own length 1.43-1.75, average 1.69. Depth (4.8-6.6 mm.) of body 

 1.03-1.32 in body width, average 1.14. Depth of body 1.6—2.1 in 

 body length, average 1.8. Depth (4.6-6.6 mm.) of tail in length of 

 tail 2.9-4.0, average 3.4. Muscular part (2.8-4.4 mm.) 1.2-2.1 in 

 depth of tail, average 1.64. Spiracle 1.15-1.95 nearer base of hind 

 legs or vent region (3.6-6.0 mm.) than the tip of the snout (5.8-8.0 

 mm.), average 1.5. Spiracle 1.0-1.66 nearer eye (3.0-4.6 mm.) than 

 base of hind legs or vent, average 1.33. Eye to tip of snout (3.0- 

 4.4 mm.) about equal to eye to spiracle (3.0-4.6 mm.), occasionally 

 larger or smaller. Nostril 1.25-1.875 nearer eye (1.4-2.2 mm.) than 

 snout (2.0-3.2 mm.), average 1.5. Mouth (2.0-3.0 mm.) usually 

 equal to or slightly larger 1.25 than internasal space (2.2-3.0 mm.). 

 Mouth contained 1.33-2.2 (average 1.71) in interorbital distance 

 (3.2-5.0 mm.). Internasal space contained in interorbital space 1.3- 

 2.2, average 1.78. 



The dimensions of the largest tadpole are : 



Mm. 



Total length 33. 



Body length 10. 6 



Body depth 6. 6 



Body width 7. 4 



Tail length 22. 4 



Tail depth 6. 6 



Musculature of tail 4. 4 



Spira«le to snout 7.5 



Mm. 



Spiracle to vent 5. 



Spiracle to eye 3. 8 



Eye to snout 4. 4 



Eye to nostril 2. 



Nostril to snout 3. 



Mouth 2.8 



Interorbital distance 4. 8 



Internasal distance 2. 8 



PSEUDACRIS OCULARIS (Holbrook) 



Plate 6, figure 16 



Color description from life {June 80, July 8, 1922). — Dorsal color 

 citrine drab or deep olive. Over the dorsum of the body are definitely 

 scattered distinct UlacTc spots. Lower belly a block of orient pink 

 or orange pink. Sometimes this is broken into a mottled arrange- 



