Vol. 62, pp. 17-24-_^: March 17, 1949
BIOLOdlCAL SOCIETY OF WASHINGTON
A NEW CRAYFISH OF THE GENUS 0RC0NECTE8
FROM THE NASHVILLE BASIN IN TENNESSEE,
WITH NOTES ON THE RANGE OF 0RC0NECTE8
COMPRESSUS (FAXON) (DECAPOD A, ASTACIDAE)
By HoRTON H. HoBBS, Jr.i
Apparently the first specimens of the new species described
below were collected by Mr. J. E. Benedict at Nashville, Ten-
nessee, in May, 1897. Faxon (1914:383) mistakenly identified
them as Orconectes validus. Fleming (1939), in his report on
*'The Larger Crustacea of the Nashville Region," was ap-
parently unaware of Faxon's record for Orconectes validus,
and he included no reference to a form which can be ascribed
to this species. It is possible that the range of this new species
is somewhat restricted in the Nashville area ; however. Dr. C.
S. Shoup of Vanderbilt University, and Dr. Mike Wright of
Tusculum College have collected it in several localities (see
below) south of Nashville.
The Virilis section of the genus Orconectes, of which this species is
a member, has a rather large range in the central part of the United
States ; however, only one member of this assemblage has been previously
reported from the Cumberland Eiver drainage. In "The Crayfishes of
Kentucky. . ." Rhoades (1944:133) recorded Orconectes compressus
(Faxon 1884:127) from the lower Cumberland drainage in Kentucky,
but it is not known to occur in tributaries above the mouth of Little
Eiver in Kentucky.
Since in my collection there are several new locality records for
Orconectes compressus, I am including them below with a brief summary
of the present knowledge of this species.
Genus Orconectes Cope 1872
Orconectes compressus (Faxon)
Camharus compressus Faxon, Proc. Amer. Acad. Arts and Sci. 20:127,
Faxon 1884: 124, 127-128, 146; Faxon 1885a: 85, 86, 102, 105-107,
161, 167, 174, 178, PL V, fig. 6, PL X, figs. 2, 2', 2a, 2a'; Faxon
1885b: 359; Faxon 1914: 419; Fleming 1939: 306; Goodnight
1940a: 222-223; Goodnight 1940b: 170; Harris 1903: 60, 83, 146,
151; Hay 1899: 960, 962; Ortm^ann 1902: 278; Ortmann 1905:
110, 112, 127; Ortmann 1931: 90, 94, 95.
Orconectes compressus Hobbs 1942 : 352 (by implication) ; Ehoadea
1944: 113, 133, 134.
^Miller School of Biology, University of Virginia.