A Revision of the Toads of the Bufo Debilis Complex |
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anteriorly Arizona Bufo debilis complex Bufo kelloggi Coahuila color pattern County cranial crests Culberson County dark lines dark-tipped warts Dawson County diameter of orbit distance between parotoids dorsal coloration dorsal pattern elongate eyelid females figs fourth toe ground color head width holotype insidior intergradation interorbital width larger than subarticular least distance length of foot length of fourth length of leg length of parotoid length of third limbs lineolate males margin Mazatlán membrane Mexico Nayarit nostril Occipital groove Oklahoma parotoid glands pointed warts population posterior posteriorly preorbital crest preorbital ridge region retiformis Sanders and Smith side of head Sierra Madre Oriental Sonora southern species specimens spinose spiny warts standard length subarticular tubercles suborbital crest subspecies supraorbital crests Supraorbital ridge surfaces Tamaulipas Taylor Texas thenar tubercle third finger tibia tip of snout toads tympanum upper eyelid ventral vocal pouch width of interorbital width of parotoid Zacatecas