4 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119 



unlikely, although not impossible, that it actually occurs in Ecuador. 

 The same statement applies to Anolis pulchellus Dumeril and Bibron, 

 which Cornalia (1849, p. 308), recorded from Guayaquil, based with 

 little question upon a misidentification. A discussion on the occurrence 

 of Polychrus liogaster Boulenger has been published earlier Q. Peters, 1959). 



Acknowledgments 



Again I must record my debt to friends, colleagues, and institutions whose 

 assistance facilitates my efforts. It becomes increasingly obvious to me 

 that completion of a work of this type is totally subject to the continued 

 good will and cooperation of many people, and I am pleased that I continue 

 to work without incurring their disfavor. 



Dr. Gustavo Orces-Villagomez, of the Escuela Polytecnica Nacional, 

 in Quito, continues to provide facilities, materials, specimens, knowledge, 

 and friendship. His constant tolerance of my faults, both while I shared 

 his laboratory during my visits to Ecuador and while I bombard him with 

 impossible requests during my stays at home, has never ceased to amaze 

 me. The late Robert Copping, of the British Embassy staff in Quito, was 

 more than congenial as a fellow collector, host, and intermediary in prob- 

 lems, political and otherwise. Robert Mullen and Peter Spoecker, students 

 at Valley State College, and Manuel Olalla, an Ecuadorian citizen, spent 

 the summer of 1962 in the field with me, enduring mule kicks, fungus in- 

 fections, cold mountain passes, and occasional beer shortages, all in my 

 behalf. Spoecker and Stephen Austin have spent many hours checking 

 the key against Ecuadorian specimens. 



M. Boesman, Doris Cochran, J. A. Cochrane, J. Eiselt, Norman Hartweg, 

 Werner Ladiges, Edmond V. Malnate, George Myers, Thomas Uzzell, 

 Charles Walker, and Ernest E. Williams have loaned specimens, provided 

 information, or made work space available at their respective institutions. 



I have now made three trips to Ecuador for collecting purposes; the 

 first, in 1954, supported by the Penrose Fund of the American Philosophical 

 Society, the second, in 1958-59, under tenureship of a Fulbright Professor- 

 ship, and the third, in 1962, under the sponsorship of the National Science 

 Foundation, Grant No. G-21010, To the authorities in charge of each, 

 my sincere thanks. 



Key to Genera of Lizards Known or Expected in Ecuador 



(Asterisk indicates genus or species has not yet been collected in Ecuador) 



1 . Feet (at least the forefeet) present; eye definite 2 



Without feet; eye reduced to an indefinite p>oint covered by the skin. 



Amphisbaena 



