. The Batrachia of North America. Amphibians. 4 -7 Fig. 64.—B«/o colwfribicnsis halophilus (from Baird, TJ. S. and Mexican Bound Survey); 1. The northern and southern varieties may be thus defined in extreme forms: Head times in length; web extending to tips of toes, but deeply euiargiuato; parotoid glaud more elongate; colors dark ; size large , columbiensis. Head 4 times in length ; webs more deeply notched, and leaving three phalanges of fourth toe free ; parotoid shorter; colors light; size smaller halophilus. There are, however, as many specimens which are intermediate between
. The Batrachia of North America. Amphibians. 4 -7 Fig. 64.—B«/o colwfribicnsis halophilus (from Baird, TJ. S. and Mexican Bound Survey); 1. The northern and southern varieties may be thus defined in extreme forms: Head times in length; web extending to tips of toes, but deeply euiargiuato; parotoid glaud more elongate; colors dark ; size large , columbiensis. Head 4 times in length ; webs more deeply notched, and leaving three phalanges of fourth toe free ; parotoid shorter; colors light; size smaller halophilus. There are, however, as many specimens which are intermediate between these extremes as there are specimens of the latter. These represent the Bi(fo microscaphus Cope. The specimens of the middle and south- ern Ivocky IMountain region are referable to it, as well as many from. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cope, E. D. (Edward Drinker), 1840-1897. Ashton, Maryland : Eric Lundberg
Size: 1102px × 2268px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcopeededwarddr, bookcentury1900, booksubjectamphibians
