﻿PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



issued H^^lVvl \)?M1 ^y '^« 



SMITHSONIAN INSTITUTION 

 U. S. NATIONAL MUSEUM 



Vol. 102 Washington: 1952 No. 3297 



A NEW CRAYFISH FROM ALABAMA, WITH NOTES 

 ON PROCAMBARUS LECONTEI (HAGEN) 



By HoRTON H. HoBBs, Jr. 



The combined ranges of the members of the Blandingii section of 

 the genus Procamharus, excluding mountainous areas, extend from 

 Mexico to Massachusetts, and from Florida to Ohio and Minnesota. 

 The new species described herein is found in a region in which the 

 members of this section have shown the greatest degree of speciation 

 (i. e., in the southeastern part of the United States). Since the 

 species is represented in my collection by only six specimens, taken 

 from the type locality, little is known of its habits and variation, 

 and its range can be postulated only in terms of the known distribu- 

 tion of its close relatives, which presumably have similar habitat 

 preferences. On the basis of the latter it seems probable that it is 

 confined to the Tallapoosa River and its tributaries. 



Procamharus lecontei (Hagen, 1870, p. 47) has never been ade- 

 quately diagnosed, and the published figures (first pleopods, antennal 

 scale, and epistome by Hagen, 1870, and dorsal aspect by Faxon, 

 1885a) are inadequate and not entirely accurate. Furthermore, since 

 its original description there has been considerable confusion as 

 to its range. In addition to presenting a revised diagnosis of 

 P. lecontei and illustrating the diagnostic features, I am including 

 a bibliography of the species and summarizing its known range. 



I wish to express my gratitude to Dr. E. C. Raney, R. D. Suttkus, 

 and J. Kezer, of Cornell University, for the gift of the specimens 

 on which the new species is based, as well as to others, mentioned in 

 connection with collection data, who have assisted in collecting 

 specimens of P. lecontei. 



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