44 PEOCEE DINGS OF THE NATIONAL MUSEUM 



VOL 74 



racular opening just below lateral axis. Eye just above or barely 

 touches lateral axis. Anus dextral, on level with lower edge of ventral 

 crest. Muciferous crypts indistinct in our material (up to 42 mm.). 



Mouth parts. — Teeth -f. Edge of upper labium fringed with 

 teeth, the fringe usually about one and one-fourth, sometimes one and 

 one-half times greater than horny beak. In either corner beneath 

 this fringe is a very short lateral row of teeth one-eighth to one- 

 eleventh the upper fringe in length. Rarely this row is absent, or 

 present only on one side. The median space between these lateral 

 rows is six to eight or ten times the length of either lateral row. This 

 second row does not extend to the end of the upper fringe. From 

 end of upper fringe to end of first or second row is one or one and one- 

 half rows of inner papUlae, not well developed or with inner papillae 

 almost absent. No row of inner papillae below the third lower labial 

 row of teeth. The first and second lower labial row of teeth are 

 equal, slightly larger than horny beak. The first is divided in the 

 middle, sometimes so faintly or slightly that it appears as one. The 

 third lower labial row much shorter than the single papillary border 

 below it, slightly less than horny beak, and contained 1.5-1.8 in first 

 or second lower labial row. 



Measurements. — Length of body (10-15.2 mm.) in tail (17.2-27 mm.) 

 1.5-2.0, average 1.8. Width (6.2-9.0) of body in its own length 

 1.6-2.0, average 1.77. Depth of body (5.0-8.6) 1.04-1.26 in body 

 Vvidth, average 1.14. Depth of body 1.6-2.0 in body length, average 

 1.75. Depth of tail (6.0-9.0) in tail length 2.68-3.43, average 3.14. 

 Depth of tail in body depth 0.75-1.05, average 0.93. Muscular part 

 (3.0-5.2 mm.) of tail 1.5-2.0 in depth of tail, average 1.8. Spiracle 

 1.07-1.45 nearer base of hind legs or vent region (4.8-8.0 mm.) than 

 the tip of snout (7.0-10), average 1.3. Spiracle 1.1-1.75 nearer 

 eye (3.8-6.0) than base of hind legs or vent region, average 1.43. 

 Eye 1-1.2 near tip of snout (3-5.0) than spiracle (3.8-6.0), average 

 1.0+ . Nostril 1.1-1.9 near eye (1.18-3.0) than snout (2.2-3.8), 

 average 1.5. Mouth (2.4-3.6) 1.0-1.3 larger than internasal space 

 (2.0-3.2), average 1.12. Mouth contained 1.3-1.66 in interorbital 

 distance (3.4-6.0), average, 1.49. Internasal space (2.0-3.2) con- 

 tained 1.5-2.0 in interorbital space, average 1.66. The tadpole must 

 reach a larger size than our specimens. 



The dimensions of the largest tadpole are : 



Mm, 



Spiracle to vent 7. 4 



Spiracle to eye 6. 



Eye to snout 5. 



Mm. 



Total length— 42. 



Body length 15. 2 



Body depth 8.6 



Body width 9.0 



Tail length 27. 



TaU depth 9.0 



Musculature of tail 5. 2 



Spiracle to snout 10. 



Eye to nostril 3. 



Nostril to snout 3. 6 



Mouth 3.4 



Interorbital distance 3. 



Internasal distance 5. 



' 



