HERPETOLOGY OF PORTO RICO. 567 



Two species we have found occupying all the zones from an average 

 altitude of, say, 500 feet to the highest mountain tops, namely: 



Alio! is </u>i<II<i<'/h. 



Anolis evermanni. 



One batrachian which also reaches the highest elevations but which 

 scarcely descends below SOO feet is EU utherodactylus richmondi. 



Finally a single species, thus far only known from one specimen, 

 appears to be confined to the tops of the mountains, about 3,000 feet 

 altitude, viz: Eleutherodactyl/us unicolor. 



BIBLIOGRAPHY. 



1810. Ledrc, Andre-Pierre. Voyage | aux lies | de Teneriffe, | la Trinite, Saint- 

 Thomas, | Sainte-Croix et Porto-Ricco, | execute par ordre du Gouverne- 

 ment Franeais, | Depuis le 30 Septembre 1796, jusqu'au 7 Juln 1798, sous 

 la | Direction du Capitaine Baudin, pour faire des Recherches | et des 

 Collections relatives ;i l'Histoire Naturelle; | contenant | Des Observations 

 sur le Climat, le Sol, la Population, | 1' Agriculture, les Productions de ces 

 lies, | le Caractere, les | Mceurs et le Commerce de leurs Habitants. | Par 

 Andre-Pierre Ledru, | L'un des Naturalistes de 1' Expedition . . . | Ouvrage 

 Accompagne de Notes et d' Additions, | Par M. Sonnini. | .... A 

 Paris, | chez Arthus Bertrand . . . | 1810. 2 vols., 8vo, pp. (2), xlvii, 

 317, (I); (2), 325, (II). Map. 



Reptiles of Porto Rico, vol. II, pp. 210-214. 



1811-12. Ledru. Reise nach den Inseln Teneriffa, Trinidad, St. Thomas, St. Cruz, 

 und Porto-Rico, 1796-98, unter der Leitung des Captain Baudin. Aus 

 dem Franzoesischen, mit Bemerkungen ueber Colonialwaren von 

 E. A. W. Zimmermann. Leipzig. 1811-1812. 2 vols., 8vo. (Not seen). 



1812. Ledru, Andre Pierre. Reise | nach den | Inseln Teneriffa, Trinidad, St. 

 Thomas, | St. Cruz und Porto-Rico. | AufBefehl | derfranzoesischen Regie- 

 rung, | vom | 30 sten September 1796 bis zum 7 ten Junius 1798; | urn unter 

 der Leitung des Kapitaen's Baudin naturhistorische | Untersuchungen 

 und Sammlungen zu machen. | Beschrieben von | Andre Pierre Ledru, | 

 einem der Naturforscher dieser Unternehmung. | Aus dem Franzoesischen 

 uebersetzt. | — Mit einer Charte der Insel Porto-Rico — | Weimar, | imVer- 

 lage des H. S. privil. Landes-Industrie-Comptoirs. | 1812. One vol., 8vo. 

 pp. xx, 324. Folding map. 



Reptiles of Porto Rico, pp. 290-292. 



With regard to the year of the publication of this edition it is to be 

 noted that while it is given as 1812 on the title page the folding inap at 

 the end of the book is dated 1814. It is consequently probable that the 

 book was not issued until the latter year. 



1836. Moritz, C. Notizen zur Fauna der Insel Puertorico. Wiegmann's Archiv 

 fi'ir Naturgeschichte, 1836, ii, pp. 373-392. 



1863. Ledru, Andres Pedro. Viage | a la | isla de Puerto-Rico | en el afio 1797, | 

 ejecutado pur una comision | de sabios Franceses, | de orden de su 

 gobiernn | y bajo la direccion del capitan j N. Baudin, | con objeto de 

 hacer | indigaciones y colleccioncs | relativas a la | Historia Natural; | 

 conteniendo observaciones sobre el clima, suelo, | poblacion, agricultura, 

 comercio, caracter y | costumbres de sua habitantes: | por Andres Pedro 

 Ledru, | uno de los naturalistas de la expedicion, miembro de la Socie- 



