LECONTICAMBARUS

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AUSTROCAMBARUS
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VILLALOBOSUS
 

 

 

KEY TO THE SPECIES OF THE SUBGENUS LECONTICAMBARUS


 

1.   Albinistic; eyes with reduced pigment (See also Fig. 11f):.................................................................
      ...........................................................................................  Procambarus (L.) milleri  Hobbs, 1971.

      (Subterranean waters in Dade County, Florida.  Literature:  Hobbs, 1971c)

  • Pigmented; eyes normally pigmented:..............................................................................................    2

 


 

2(1).  Hooks on ischia of third pereiopods only (Fig. 4a):.........................................................................     3

  • Hooks on ischia of third and fourth pereiopods (Fig. 4c):...............................................................    6

 


3(2).  Mesial process (m) of first pleopod massive and subspatulate (Fig. 43f):...................................
          ....................................................................................................  Procambarus (L.) kilbyi (Hobbs, 1940).

          (Burrows and lentic habitats in Calhoun and Gulf counties east and south to Levy
            County, Florida.  Literature:  Hobbs, 1942a).

  • Mesial process of first pleopod slender and tapering to acute or subacute apex
    (Figs. 43a-e, g, h, 44a-d):...................................................................................................................    4
Fig. 43.  Lateral view of left first pleopods.  a, Procambarus hubbelli;  b, P. rathbunae;  c, P. capillatus;  d, P. shermani;  e, P. alleni;  f, P. kilbyi;  g, P. latipleurum;  h, P. barbatus.  (c, caudal process;  m, mesial process).

4(3).   First pleopod with mesial process extending no further distally than cephalic process;
           subapical setae in apical cluster (Fig. 43a):...................  Procambarus (L.) hubbelli  (Hobbs, 1940).

          (Burrows and lentic habitats in the Choctawhatchee River basin in Alabama and Florida.
            Literature:  Hobbs, 1942b).

  • First pleopod with mesial process extending much farther distally than cephalic process;
    subapical setae arranged in linear series on cephalodistal margin of appendage
    (Fig. 43b, c):..................................................................................................................................................    5

 


5(4).   First pleopod with caudal process (c) directed cephalodistally, not reaching level of tips of cephalic
           process and central projection (Fig. 43b; see also Fig. 28b).................................................................
           ..............................................................................................  Procambarus (L.) rathbunae  (Hobbs, 1940).

       (Burrows and lentic habitats in Okaloosa and Holmes counties, Florida.  Literature:  Hobbs, 1942).

  • First pleopod with caudal process (c) directed distally and extending at least to level of tips of cephalic process and central projection (Fig. 43c):............................  Procambarus (L.) capillatus  Hobbs 1971.

       (Burrows and lentic habitats in the Escambia River basin in Alabama and Florida.
        Literature:  Hobbs, 1971b).


6(2).   First pleopod with mesial process (m) reaching no farther distally than tip of cephalic process
           (Fig. 43d):................................................................................  Procambarus (L.) shermani  Hobbs, 1942.

       (Streams and sloughs in Perl River County, Mississippi, St. Tammany Parish, Louisiana
        and in the Escambia River drainage, Florida.  Literature:  Hobbs, 1942b).

  • First pleopod with mesial process (m) reaching much farther distally than tip of cephalic process
    (Fig. 43e-h, 44a-d):.......................................................................................................................................  7

7(6).  First pleopod with mesial process sinuous (Fig. 43e):.................................................................................
          ........................................................................................................  Procambarus (L.) alleni  (Faxon, 1884).

       (Lentic and lotic habitats east of the St. John's River and all of peninsular Florida south
         of Levy and Marion counties.  Literature:  Hobbs, 1942b).

  • First pleopod with mesial process straight or curved but never sinuous (Figs. 43f-h, 44a-d):...............
    ...........................................................................................................................................................................  8

8(7).   First pleopod with mesial process massive, subspatulate, and its apex directed almost
           caudally (Fig. 43f):.....................................................................  Procambarus (L.) kilbyi  (Hobbs, 1940).

       (see couplet 3 for range and literature).

  • First pleopod with mesial process acute to subspiculiform, and its apex directed caudo- or
    cephalodistally  (Figs. 43g, h, 44a-d):........................................................................................................  9

9(8).   First pleopod with mesial process directed distally or cephalodistally (Figs. 43g, h, 44a):...............
           .......................................................................................................................................................................  10

  •  First pleopod with mesial process directed caudodistally (Fig. 44b-d):................................................  12

10(9).   Palm of chela of male not bearded (Fig. 44e; see also Fig. 43g):......................................................
             ...........................................................................................  Procambarus (L.) latipleurum  Hobbs, 1942.

       (Burrows and lentic habitats in Gulf County, Florida.  Literature:  Hobbs, 1942b).

  • Palm of chela of male bearded (Fig. 44f):...............................................................................................  11
Fig. 44.  a-d, Lateral view of left first pleopods;  e,f, Dorsal view of chelae.  a, Procambarus pubischelae;  b, P. escambiensis;  c, P. econfinae;  d, P. apalachicolae;  e, P. latipleurum;  f, P. barbatus.  (cp, cephalic process).

11(10).  First pleopod with cephalodistal margin sloping steeply from base of cephalic process
               (Fig. 43h; see also Figs. 25b, 44f):............................  Procambarus (L.) barbatus  (Faxon, 1890).

       (Burrows and lentic habitats in the coastal plain between the Edisto River in South
        Carolina and the Altamaha River in Georgia.  Literature:  Faxon, 1890; Hobbs, 1942b).

  • First pleopod with cephalodistal margin forming round hump (Fig. 44a):.................................................
    ..........................................................................................  Procambarus (L.) pubischelae  Hobbs, 1942.

     ( Burrows and lentic habitats from the Altamaha River, Georgia, southward to Alachua
        County, Florida.  Literature:  Hobbs, 1942b).


12(9).   Palm of chela of male bearded (Like Fig. 44f; also see Fig. 44b):..................................................
             ....................................................................................  Procambarus (L.) escambiensis  Hobbs, 1942.

       (Burrows and lentic habitats in the lower Perdido and Escambia river basins in
        Alabama and Florida.  Literature:  Hobbs, 1942b).

  • Palm of chela of male not bearded (Like Fig. 44e):..................................................................................  13

13(12).  First pleopod with cephalic process (c) curved, its apex directed cephalodistally (Fig. 44c):.........
              ...............................................................................................  Procambarus (L.) econfinae  Hobbs, 1942.

       (Burrows and lentic habitats in Bay County, Florida.  Literature:  Hobbs, 1942b).

  • First pleopod with cephalic process (c) straight and directed caudodistally (Fig. 44d):.........
    ............................................................................................  Procambarus (L.) apalachicolae  Hobbs, 1942.

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END OF LECONTICAMBARUS

Last Updated:  10 September 2004