SYSTEMATIC ACCOUNT OF THE SPECIES. 113 
near Alto Cedro, also in Oriente. Much more startling, however, was the 
capture in 1915 of a single adult at San Antonio de los Bafios not far from 
Havana (Barbour). These are the only records of which we are aware, where 
the locality is exactly known. There is a specimen in the British Museum 
(P. Z. S., 1890, p. 324) which Dr. Boulenger writes was purchased from the 
natural history institute ‘“Linnaea”’ with merely Cuba for data. 
As to the habits of P. limbatus we can contribute but little. It seems to 
be confined to a limestone substratum and is found by day hidden under stones 
or damp leaves in moist situations. It is astonishingly active and when once 
spied out it is by no means easy to catch. One needs forceps and must work 
carefully lest the tiny creature be badly injured. It is noteworthy that the 
smallest bird, Calypte helenae (Gundlach), is peculiar to Cuba, and that on the 
same island occurs Sphaerodactylus elegans Reinhardt & Liitken, the smallest 
reptile, and Phyllobates limbatus Cope, which is certainly one of the smallest 
if not the very smallest amphibian known. However, almost equally minute 
species of Arthroleptis and Nectophryne occur in the Seychelles Islands. 
Phyllobates bicolor Bibron which was ascribed to Cuba in la Sagra’s History 
(Rept. 1840, pl. 29, bis), and which appears also in Gundlach’s Erpetologia 
Cubana (1880, p. 88) is beyond doubt some non-Cuban form. It probably 
got mixed in with the Cuban collections which were forwarded to Paris for 
study for publication in the la Sagra series. It is perhaps Mexican, for a num- 
ber of species of shells now known to be from that country occur in d’Orbigny’s 
volume on the Mollusques. 
REPTILIA: SAURIA. 
Key to the Genera. 
at Four limbs. 
b! Head covered with seales or small plates. 
c! Eyelids undeveloped, pupil vertical“ ; = 
d' Toes compressed, undilated . . . . . . . . . . . Gonatodes, p. 114 
d? Toes dilated. 
e! Toes dilated at the tiponly . . . . . . . . ... Sphaerodactylus, p. 119 
e? Toes dilated at the base. 
f! Terminal portion of each toe free, raised upward, all 
toesclawed. .. . . ... ... =... . . Hemidactylus, p. 117 
f Only third and fourth toes clawed . . . . . . Tarentola, p. 116 
ec? Eyelids functional, pupils round. 
d' Toes dilated. 
e' Atransverse gularfold. . ...... =... . Deiroptyz, p. 130 
e? A longitudinal gular pouch. 
f! Squamation heterogeneous, body with mixed scales of 
greatly varyingsize.. ..... =.=. =... . Chamaeleolis, p. 128 
