Hypopachus Cuneus 



193.) The distance from the tip of the muzzle to the shoulder is 

 proportionately greater than in Engystoma carolinense. The 

 canthus rostralis is more prominent. The colouration is dull 

 greenish or gray, instead of warm shades of brown. 



Engystoma texense was found during late June, 1905, in rela- 

 tively large numbers at Brownsville, Texas. It was breeding 

 in the same pools with Scaphiopus couchii and Hypopachus 



cuneus. 



HYPOPACHUS CUNEUS, COPE 

 Identification Characteristics 



Colour: Brown, of greenish, yellowish, or greyish tone. There 

 may be a broad band of brighter brown extending from the eye 

 backward. This oblique band is bordered above and below by 

 wavy lines of black. There is a black line below the angle of the 

 canthus rostralis. A white band bordered with black passes 

 obliquely downward from under the eye to a point in front of and 

 below the arm insertion. There is much bright dark red on the 

 femur, and some touches of it on the tibia, and on the body where 

 it lies against the femur. Many black spots at the posterior end 

 of the body and along the concealed part of the femur. Legs 

 banded with black. (There are usually two bands placed close 

 tc^ether.) An orange-yellow or white thread line along the 

 middle of the back from the muzzle to the posterior end of the 

 body. The lower sides are grey. The underparts are light, ob- 

 scurely mottled with dark. Throat closely speckled with black. 

 (For colouration, see Colour Plate II and Figs. 194 to 196.) 



Measurements: Size small, i. e. length of female i\ inches, 

 male smaller. Head small and short, its length (to fold) contained 

 about eight times in total length. Legs short; length to heel 

 equals length of body forward to the shoulder. 



Structure: Body large and squat. Fold across head behind 

 the eyes conspicuous, as is also the one from the eye to the 

 shoulder. There is a fold across the breast from arm to arm. Ear 

 not visible. Skin smooth, loose, and leathery on the back. The 

 toes and fingers are slender. Feet with very short webs. (Fig. 

 195.) Tubercles under joints of toes prominent. Inner and outer 

 sole tubercles large, each with a cutting edge. 



169 



