HIATICAMBARUS

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AVITICAMBARUS
CAMBARUS
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HIATICAMBARUS
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KEY TO THE SPECIES OF THE SUBGENUS HIATICAMBARUS


1.   Rostrum with marginal spines or tubercles (Fig. 104a;  see also Fig. 89c):...................................
      .......................................................................................................................  Cambarus (H.) girardianus  Faxon, 1884.

       (Lotic habitats in the Tennessee River drainage system in Alabama, Mississippi, Tennessee, and
        Georgia.  This species may prove to be conspecific with C. (H.) longirostris.

  • Rostrum without marginal spines or tubercles (Fig. 104b):......................................................................  2
Fig. 104.  a-b, Dorsal view of carapaces.  c-d, Dorsal view of chelae.  a, Cambarus girardianus;  b, C. longirostris;  c, C. chasmodactylus;  d, C. longulus.

2(1).   Suborbital angle acute (Fig. 105a;  see also Fig. 104b):.............  Cambarus (H.) longirostris  Faxon, 1885.

       (Lotic habitats in the Tennessee River system from Lawrence County, Tennessee, to southwestern
        Virginia, and in the Coosa River system in northeastern Alabama and northwestern  Georgia.
        Literature:  James, 1966;  Hobbs, 1969b).

  • Suborbital angle obtuse or obsolete (Fig. 105b):.....................................................................................  3
Fig. 105.  Lateral view of the cephalic region.  a, Cambarus longirostris;  b, C. chasmodactylus.  (sa, suborbital angle).

3(2).   Dactyl of chela more than twice as long as mesial margin of palm (Fig. 104c;  see also Fig. 105b):....
           ...................................................................................................  Cambarus (H.) chasmodactylus  James, 1966.

       (Lotic habitats in the New (Kanawha) River system in North Carolina, Virginia, and southeastern
        West Virginia.  Literature:   James, 1966;  Hobbs, 1969b).

  • Dactyl of chela less than twice as long as mesial margin of palm (Fig. 104d):..........................................
    .................................................................................................................  Cambarus (H.) longulus  Girard, 1852.

       (Lotic habitats from the James River drainage in Virginia, to the Yadkin River drainage in
         North Carolina, in the mountains and piedmont.  Literature: James, 1966;  Hobbs, 1969b).


END OF SUBGENUS HIATICAMBARUS

Last Updated:  10 September 2004