THE HERPETOLOGY OF HISPANIOLA 



57 



about three-fourths as wide as mouth opening, not emarginate behind; 

 vomerine teeth in two heavy, shghtly obHque groups, their anterior 

 borders in contact with the posterior rim of the choanae, their inner 

 borders narrowly separated, their outer borders extending beyond 

 the choanae; head without ridges, relatively narrow; snout pointed; 

 nostril much nearer tip of snout than eye, separated from eye by an 

 interval equal to three-fourths the eye diameter; upper eyelid a little 

 less than interorbital width ; tympanum about three-fifths the eye diam- 

 eter, separated from eye by slightly more than one-half its own 

 diameter; disks of fingers small, that of third finger covering about 

 one-half the area of the tympanum; first finger shorter than second; 



Figure 18.— EUuikerodactyius schmidti rucillensis: a. Dorsum; b, venter; c, profile of head; 

 d, inside of mouth. U.S.N. M. No. 107565, paratype, from Loma Rucilla and mountains 

 north, Dominican Republic. Seven-eighths natural size. 



toes webbed at the base, their disks small, scarcely larger than those 

 of fingers; first toe reaching base of penultunate phalanx of second; 

 fifth toe equal to third in length; distinct dermal fringes along the 

 toes, less developed on fingers; subarticular tubercles well developed; 

 two metatarsal tubercles, the outer small, rounded, tubercular, the 

 inner elongate and more prominent, a slight tarsal ridge leading from 

 the base of inner metatarsal tubercle and becommg imperceptible 

 before it reaches the heel; the bent limbs being adpressed, knee reaches 

 to axilla, and heel extends considerably beyond tip of snout; when 

 hindlimibs are placed at right angles to body, heels slightly overlap. 

 Skin of upper parts finely pustular anteriorly, more coarsely so on 



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