118 BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM 



Of the five Sanchez specimens (F.M.N.H No. 5963), three are 

 adults and two are young. All have a conspicuous, white, dark- 

 bordered patch on the posterior femur and adjoining part of body. 

 One of the young has two light, dark-bordered dorsal ocelli above the 

 base of the tail. Otherwise their coloration is spotted as in the de- 

 scribed specimen. They do not appear to be males, as there is no 

 ventral "escutcheon ' of scales. The two young measure 22 and 21 mm. 

 in head and body length, respectively; their tails are partly missing. 



The snout scales are well keeled in one adult, less so in one and 

 not at all in the third. 



The dorsal scales are very unequal so that those in the standard 

 distance may be from 1 1 to 14 on the first adult listed, depending on 

 where they are counted. The second adult is more equal in scales, 

 but they seem slightly smaller, yet 12 to 14 may be counted anywhere 

 on back or side. The third adult has smaller scales and 15 may often 

 be counted. 



The 22-mm. young has 14 to 15 scales in the standard distance, 

 rather more than in the adults seemingly, while the 21-mm. young 

 has finer scales than any, with 15 to 16 in the standard distance. 



The chest scales are entirely smooth in all five specimens. 



Table 21. — Specimens of Sphaerodactylus difficilis examined 



Museum No. 



Locality 



Date 



Collector 



U.S.N.M. 

 9850, 9852-9855, 9857- 

 59179 .... 



"San Domingo" 



Port-au-Prince, Haiti. 



59185 



65781 



69124 



74942, 74943. 

 74974-74977.. 

 75001, 75002. 

 76718-76723.. 



M.C.Z. 



7834 (type of S. difficilis) ... . 



7835 (paratype of S. difficilis) 

 5444 (2 specimens, paratypcs 



of jS. difficilis). 



5451 ---- 



8750... - --. 



9365,9366.. 



13458 



43664-43666, 44400..- 



43706-43709 



Petionville, Haiti.. 



Samana and Laguna, D. R... 



Mon Repos, Haiti 



Rio San Juan, D. R 



Boca del Infierno, D. R 



Samana, D. R 



Muertos Island, Sept Freres. 



Santiago de la Vega, D. R. 



do.. 



Puerto Plata, D. R 



Apr. 24, 1917 



Apr. 1, 1917 



March 1923.. 



Mar. 5, 1925 



March 1928 



Feb. 28, 1928 



Feb. 22,1928. 



Jan. 28-Feb. 5,1929. 



1910 



1910 



1885 



44379-44380- 

 44395-44390. 



Samana, D. R 



Grand Riviere 



do.. 



Ferronai 



Sosua, D. R 



Santa Barbara do Samana, 



D. R. 

 Mount Diego de O Campo, 



D. R. 

 Sanchez, D. R 



1885 



1913 



1913 



1919. 



August 1937. 



F.M.N.H. 



6963 (3) . 



.do. 



July 1938. 

 July 1938. 



1924 



W. M. Gabb. 

 J. B. Henderson and 

 P. Bartsch. 



Do. 

 W. L. Abbott. 

 Q. S. Miller, Jr. 



Do. 



Do. 



Do. 

 A. J. Poole and W. 

 Perrygo. 



A. H. Verrill. 



Do. 

 M. A. Frazar. 



Do. 

 W. M. Mann. 



Do. 

 G. M. Allen. 

 W. J. Clench. 



Do. 



P. J. Darlington. 

 Do. 



E. Kaempfer. 



