60 BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM 



"Color (in alcohol). — Above brownish gray, with a line between 

 orbits and a much darker X-shaped mark between the shoulders; a 

 pale line from tip of snout, extending over canthus rostralis, outer edge 

 of supraocular and along the glandular dorso-lateral line to the groin ; 

 a broad, dark brown band from tip of snout over loreal region to eye; 

 an oblique dark line on supra-tympanal gland, expanding into a wide 

 band on flanks; a very narrow, sharply defined light vertebral line 

 from level of nostrils to vent, intersected above latter by a similar line 

 on posterior aspect of femur, tibia and on sole of foot; lips brown with 

 small pale dots; a pale line from tympanum to humerus extending 

 over post-tympanal glands; limbs brownish gray, marbled and indis- 

 tinctly cross-barred with paler color; underside whitish." 



Variations. — I now have seen nearly 40 specimens in addition to 

 the type. The largest example (No. 65683) is 21 mm. in length, while 

 the smallest (No. 74678) is but 10 mm. The number of individuals 

 with the light middorsal line is 17; without the line, 19. One frog 

 from Bolboche (No. 74981) has a wide, light, straight-edged middorsal 

 stripe with an irregular brown border on each side. Many of the 

 specimens show a dark patch in front of the eyes, another between the 

 eyes and extending over the eyelids, an X-shaped mark above the 

 shoulders, and a chevron-shaped mark just before the sacral region. 

 The limbs are also heavily marked with wide bars of dark and narrow 

 bars of light. The black bar on the canthus and behind the tym- 

 panum is constantly present in all the specimens. On one individual 

 (No. 74982) a dark dorsolateral stripe is present, very clear-cut and 

 sharp above, but fading out below into the mottled tone of the lateral 

 region. In most cases the lateral stripe is indicated only in a slightly 

 darker area just behind the arms. The males have a decided pow- 

 dering of gray dots on the throat. 



The species seems to retain its stability outside of the type locality, 

 as two specimens from the Citadel of King Christophe in northern 

 Haiti show no differentiations. A poorly preserved individual from 

 Fonds-des-Negres, Haiti, has been provisionally referred to this 

 species; also another from Petionville. Large series from both these 

 localities are necessary before determining them positively. 



Relationships. — The short legs, the lack of webbing between toes 

 and fingers, the small adult size, the weak patches of vomerine teeth, 

 and the presence of a dark X-mark on the back link this species closely 

 to E. audanti. The short and scarcely projecting snout of the latter 

 and its generally stouter build distinguish it from the species under 

 discussion. 



Specimens examined. — As listed in table 12. 



