558 U.S. NATIONAL MUSEUM BULLETIN 2 88 



1899. Examen descriptive del grupo de los Heiniphractus. Anales Soc. 

 Espanol., ser. 2, vol. 7, pp. 379-410. 

 Johnson, Murray L. 



1952. Herpetological notes from north-eastern Brazil. Copeia, 1952, no. 4, 

 pp. 283-284. 

 Kappler, August 



1885. Die Tierwelt in hollandischen Guyana. Das Ausland, Nr. 27-47, 

 pp. 858. 

 Keferstein, Wilhelm 



1867. Ueber einige neue Oder seltene Batrachier aus Australien und dem 



tropischen Amerika. Nachr. Ges. Wiss. Univ. Gottingen, no. 18, 

 pp. 341-361. 



1868. Ueber einige Batrachier aus Coastarica. Arch. Naturg., vol. 341, 



pp. 291-300, pis. 8, 9. 

 Kellogg, A. Remington 



1932. Mexican tailless amphibians in the United States National Museum. 



U.S. Nat. Mus. Bull. 160, 224 pp., 1 pi., 24 figs. 

 Kreig, H., and Forster, H. 



1937. Grundrege in der Riickenzeichnung bei den Anuren. Zool. Anz., 

 vol. 119, pts. 11, 12, pp. 288-293, 7 pis. 

 Langebartel, D. A., and Smith, Philip W. 



1959. Noteworthy records of amphibians and reptiles from eastern Mexico. 

 Herpetologica, vol. 15, pp. 27-29. 

 Latreille, Pierre Andre 



1825. Families naturelles du Regne Animal, exposees succinctement et 

 dans un ordre analytique, avec l'indication de leurs genres. 570 pp. 

 Paris. 

 Laurent, Raymond 



1942. Note sur les procoeliens firmisternes (Batrachia Anura). Bull. Mus. 

 Hist. Nat. Belgique, vol. 28, 20 pp., 30 figs. 

 Laurenti, Joseph Nicolas 



1768. Specimen medicum, exhibens synopsin Reptilium emendatum cum 

 experimentis circa venena et antidota Reptilium Austriacorum. 

 214 pp., 5 pis. 

 Leavitt, Benjamin B. 



1933. On the three races of Bufo typhonius. Copeia, 1933, no. 1, pp. 7, 8, 



LlCHTENSTEIN, MARTIN HlNRICH CaRL 



1856. Nomenclature reptilium et amphibiorum Musei Zoologici Bero- 

 linensis. 48 pp. Berlin. 

 Lidth, Theodor Willem van 



1904. Reptiles and batrachians from Surinam. Notes Leyden Mus., vol. 

 25, pp. 83-94, pi. 7. 

 Linnaeus, Carolus 



1758. Systema naturae. Ed. 10, vol. 1. 

 Liu, Ch'eng Chao 



1935. Types of vocal sac in the Salientia. Proc. Boston Soc. Nat. Hist., 

 vol. 43, no. 3, pp. 19-40, pis. 4-8. 



LoNNBERG, ElNAR 



1896. Linnean type-specimens of birds, reptiles, batrachians and fishes in 

 the Zoological Museum of the R. University of Upsala. Bihang 

 Till K. Svenska Vet.-Akad. Handl. vol. 22, pp. 1-45. 



