THE AMPHIBIA OF OKLAHOMA 



upper labium, and whose denominator is the number of rows 

 on the lower labium of tadpoles. 



Labial Papillae. Small protuberances on the labia of tadpoles, the arrange- 

 ments of which are used as criteria in distinguishing species. 



Labial Teeth. Small horny tubercles on the lips of tadpoles, not homologous 

 to "true" teeth of the jaws of vertebrates. 



Labium. Lip. 



Lateral. Referring to the side (right or left). 



Mandible. Lower horny jaw of a tadpole (or, as used in one quotation in 

 the key, either jaw). 



Mesquite Savannah. Ecological community characterized by mesquite trees 

 growing far enough apart for short grasses to form a sod among 

 them. Common in southwestern Oklahoma. 



Parotoid Gland. A wart-like, integumentary gland on toads (Bufo), rarely 

 on members of other genera, situated just posterior to the eyes 

 on the dorsal surface. 



Particolored With two prominent colors in the coloration. Smaller amounts 

 of other colors (spots, streaks, etc.) may also occur. 



Savannah. Ecological community in which trees are widely enough spaced 

 so that grasses can form a sod among them. 



Short-grass Plain. Ecological community in which the dominant vegetation 

 under natural conditions is buffalo grass or other grasses of 

 short stature. Typical of the Panhandle and some other regions 

 of the west. 



Tail. Portion of body posterior to the anal or cloacal opening. 



Tail Crest. Dorsal portion of the tail fin. 



Tail Fin. The thin portion of the tail of a tadpole extending dorsally, 

 posteriorly, and ventrally from the thicker, muscular portion 

 along the median axis. 



Venter. The ventral (belly) surface. 



Viscera. Organs in the abdominal and thoracic cavities considered as 



a unit. 



Wart. A skin gland of a toad situated dorsally or laterally and mark- 



edly smaller than the parotoid gland. 



Web. A thin membrane extending between adjacent toes of am- 



phibians. 



Woodland. Ecological community in which trees are so closely spaced that 

 grasses cannot form a sod among them. 



Literature Cited 



Bragg, Arthur N. 1936. Notes on the Breeding Habits, F.ggs, and Embryos of Bit jo cogiuittis 

 with a Description of the Tadpole. Copeia, No. 1, pp. 14-20. 



. 1937. Observations on Bujo cognattis with Special Reference to Breeding Habits 



and Eggs. Amer. Midland Nat., 18, pp. 273-284. 



. 1940. Observations on the Ecology and Natural History of Anura. I Habits, Habi- 

 tat, and Breeding of Bufo cognci/iis Say. Amer. Nat., 74, pp. 322-349 and 424-435. 



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