PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



issued pt^tvA, s]?Mi h '^« 



SMITHSONIAN INSTITUTION 



U. S. NATIONAL MUSEUM 



Vol. 91 Washington: 1941 No. 3129 



NOTES ON SOME CRAYFISHES FROM ALABAMA CAVES, 

 WITH THE DESCRIPTION OF A NEW SPECIES AND A 

 NEW SUBSPECIES 



Bv Rendell Rhoades 



From Dr. Alviii R. Cahn, formerly chief of the Biological Ke- 

 adjustment Division of the Tennessee Valley Authority, I received a 

 small collection of crayfishes that he had collected in Shelta Cavern 

 and Belgreen Cave, in northern Alabama. Those from Shelta Cavern 

 had been tentatively determined as Camharus pellucidus, but in order 

 to establish their status definitely it was necessary to secure more 

 material. Early the next year I obtained a male, form I, from tliis 

 same cavern and later additional material from Leslie Hubricht, of 

 the Missouri Botanical Garden. With his aid I have been enabled 

 to study a complete series of this particular crayfish, which is here 

 described as a new subspecies of Camharus pellucidus Tellkampf 

 (18'44). The crayfishes from Belgreen Cave are described as a new 

 species of Catnbarus. This particular species is interesting because 

 it shows aflSnities to both cave and surface forms. 



The types and allotypes of the new forms have been deposited in 

 the United States National Museum; paratypes are in the Alabama 

 Museum of Natural History, the Academy of Natural Sciences of 

 Philadelphia, the collection of Leslie Hubricht, and my own 

 collection. 



I am indebted to Dr. Cahn and Mr. Hubricht for the bulk of the 

 material reported on in this paper. Grateful acknowledgment is 

 also made to Dr. Walter B. Jones, director of the Alabama Depart- 



408589—41 141 



