Scaphiopus holhrookii 99 



eyes close together, nearer the mid-dorsal axis than the lateral outline, in fact 

 nearer together than in Bufo. Anus median at the end of the edge of the 

 ventral cre^. Muciferous crypts in preserved s'pecimens at least indistinct. 



Mouth parts: Teeth 6/6, 6/5, 5/6, 5/5. Whole labium (upper and lower) 

 with continuous row of papillae except on the upper labium where a pro- 

 nounced median interval is toothed. This median row is about equal to the 

 first lower labial row of either side. From upper labial interval of teeth down- 

 ward either side and across the lower labial border there is at least one row of 

 inner papillae. Opposite the ends of the horny beaks are several rows of 

 them filling in the space between upper and lower labia. The next series of 

 teeth (the second) below the upper toothed interval is usually not continu- 

 ous, rarely continuous. Usually one median end slightly overlaps the end of 

 its counter part of the other side. The third series has a short medium in- 

 terval one half the distance of the upper toothed interval or first series or 

 slightly more than a similar interval in the third lower labial series. Either 

 half of the upper third series is shghtly less in depth than the horny beak and 

 about equal to either half of the lower third series. 



Measurements. Length of body (ia-12.2 mm.) in tail (12. 8-17. 6 mm.) 

 1.1-1.7, average 1.34. Width (6.0-7.4 mm.) of body in its own length 1.4-1.8, 

 average 1.64. Depth (4.8-6.8 mm.) of body i. 03-1. 50 in body width, aver- 

 age 1.23. Depth of body 1.73-2.5 in body length, average 2.04. Depth 

 (3.4-5.4 mm.) of tail in length of tail 2.5-4.0, average 3.14. Muscular part 

 (2.8-3.0 mm.) 1.45-2.4 in depth of tail, average 1.98. Spiracle i. 24-1. 66 

 nearer base of hind legs or vent region (4.4-6.0 mm.) than the tip of the snout 

 (7.0-8.0 mm.), average 1.41. Spiracle equidistant between eye 1.44-5.8 mm. 

 and base of hind legs or vent, 1.44-6.0 mm., average i.o. Eye 1.4-1.8 nearer 

 to tip of snout (3.0-3.6 mm.) than to spiracle (4.4-5.8 mm.), average 1.52. 

 Nostril 1.5-2.26 nearer eye (i. 0-1.8 mm.) than snout (2.0-3.0 mm.), average 

 1.9. Mouth (3.0-4.0 mm.) usually 1.56-2.5 larger than internasal space 

 (1.2-2.0 mm.), average 2.08. Mouth usually contained i. 0-1.66 larger 

 (average 1.3) than in interobital distance (2.0-3.2 mm.). Internasal space 

 contained in interorbital space i. 28-1. 83, average 1.56. 



The dimensions of the largest tadpole are: 



General remarks. After Nichols, Abbott is next to remark about the 

 tadpoles. He notes that "The tadpoles gathered July 9th, which were then 

 seven days old, were curious creatures. At this time the hind legs were well 



