SYSTEIMATIC 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 Banos not far from 

 Havana (Barbour). These are the only records of which we are aware, where 

 the locahty 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 httle. It seems to 

 be confined to a hmestone substratmn and is found by day hidden imder 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 Sphaerodadylus elegans Reinhardt & Lutken, 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, pi. 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 

 volinne on the Mollusques. 



REPTILIA: SAURIA. 



Key to the Genera. 



a' Four limbs. 



b' Head covered with scales or small plates, 

 c' Eyelids mideveloped, pupil vertical. 



d' Toes compressed, undilated Gonalodes, p. 114 



d- Toes dilated. 



e' Toes dilated at the tip only Sphaerodactylus, p. IIQ 



e^ Toes dilated at the base. 



f Terminal portion of each toe free, raised upward, all 



toes clawed Hemidadyhis, p. 117 



f^ Only third and fourth toes clawed Tarentola, p. 116 



c' Eyelids functional, pupils round. 

 di Toes dilated. 



e' A transverse gular fold Deiroptyx, p. 130 



e^ A longitudinal gular pouch. 



f ' Squamation heterogeneous, body with mixed scales of 



greatly varying size Chamaeleolis, p. 128 



