THE HERPETOLOGY OF HISPANIOLA 79 



U.S.N.M. No. 107607, measures 41 mm., while the reported maxi- 

 mum of auriculaioid.es is 33 mm. and of montanus 24 mm. This 

 specimen has an eye diameter exeeding the distance between eye and 

 nostril, and equal to the interorbital width. Its adpressed heel 

 reaches to between eye and nostril, it has a slight tarsal fold, and its 

 toes show a vestigial web, in all of which characters it differs from the 

 type of auriculatoides. The remainder of the specimens vary some- 

 what as to prominence of eye, length of leg, acuteness of snout, and 

 very much as to color pattern. A brown interorbital band seems to 

 be present in all specimens. Some of the Loma Rucilla frogs have 

 the concealed surfaces of tibia and femur immaculate orange-buff 

 to buff-yellow, a characteristic condition of montanus. In others the 

 leg is clouded with dark pigment in these areas. Some of the speci- 

 mens from each of the localities show a light ) (-shaped dorsal marking, 

 while others are uniformly dark above or show a W-shaped mark 

 between the shoulders. The ventral surface fails to show any definite 

 pattern, being suffused with dark in most examples. The vom- 

 erine teeth are quite constant as to position, but are unequally devel- 

 oped. The web between the toes is vestigial, but shows greater reduc- 

 tion in some cases than in others. Wider collecting in this region may 

 eventually cause auriculatoides to be combined with montanus. 



Specimens of intermediates between auriculatoides and montanus 

 examined.— M.C.Z. Nos. 23466-23468, 23475-23480, 23483-23488, 

 and U.S.N.M. Nos. 107600-107609, from Loma Rucilla, Dominican 

 Republic, June 1938, P. J. Darlington; M.C.Z. Nos. 23501-23509 and 

 U.S.N.M. Nos. 107610-107617, from Valle Nuevo in the Cordillera 

 Central, August 1938, P. J. Darlington; M.C.Z. Nos. 23510-23514 

 and U.S.N.M. Nos. 107618-107620, from Loma Vieja south of Con- 

 stanza, August 1938, P. J. Darlington. 



ELEUTHERODACTYLUS ARMSTRONGI Noble and Hassler 



Figure 26 



1933. Eleutherodactylus armstrongi Noble and Hassler, Amer. Mus. Nov., 

 No. 652, p. 2.— Barbour, Zoologica, vol. 19, No. 3, p. 92, 1935; Bull. Mus. 

 Comp. Zool., vol. 82, No. 2, p. 98, 1937. 



Original description. — "Diagnostic Characters. — Closely allied to 

 E. wetmorei Cochran and E. auriculatoides Noble but differing from 

 either in the narrower head, more extensive series of vomerine teeth, 

 and distinctive coloration. The vomerine series extend lateral to 

 the choanae. The dorsal surfaces are more or less spotted but the 

 posterior surfaces of the thighs, unlike those of E. wetmorei, are un- 

 colored or uniformly toned. Further, the spots are small and do not 

 run together to form blotches except bordering the pale dorsolateral 

 and interorbital stripes. 



