1. Mesial
surface of palm of chela bearded (Fig. 38a); areola with 3
or 4 punctations across
narrowest part (Fig.
38d; see
also Fig. 39e):....................................................................................
...........................................................................................
Procambarus (G.) tulanei
Penn, 1953.
(Lentic and
lotic habitats and burrows between the Red and Ouachita river
systems in
Louisiana and
Arkansas. Literature: Penn, 1956b, 1959).
Mesial surface of palm of chela never
bearded (Fig. 38b, c); areola linear or with only
1 or 2 punctations across narrowest part (Fig.
38e):........................................................................
2
Fig. 38.
a-c, Dorsal view of chelae; d,e, Dorsal
view of carapaces. a, Procambarus
tulanei; b, P. s. simulans;
c, P. gracilis; d, P. tulanei;
e, P. gracilis.
2(1). Areola with room
for more than 1 punctation across narrowest part; chela
with length of
inner margin of palm subequal to or greater than width of palm (Fig.
38b):...................................
3
Areola linear, never with room for
more than 1 punctation across narrowest part (Fig.
38e);
chela with length of inner margin of palm less that
width of palm (Fig. 38c):..................................
4
Fig. 39.
Lateral view of left first pleopods. a, Procambarus
s. simulans; b, P. s. regiomontanus;
c. P. gracilis; d, P. hagenianus;
e, P. tulanei. (cp,
cephalic process; e, central
projection).
3(2). Central projection (e)
and cephalic process (cp) of first pleopod tilted
cephalodistally;
caudal
margin of main body of appendage evenly contoured (Fig.
39a; see
also Fig. 38b):.........
................................................................
Procambarus (G.) simulans simulans
(Faxon, 1884).
(Lentic and lotic habitats from New Mexiaco to Colorado, Kansas,
Arkansas, and
Louisiana. A species complex that has been investigated by
Rollin D. Reimer.
Publication of his revision of the species is anticipated in the
near future.
Literature: Williams, 1954a).
EDITOR'S NOTE: The
R.D. Reimer reference referred to above is:
Reimer, R.D., 1975. Procambarus (Girardiella)
curdi, a new crawfish from Arkansas,
Oklahoma, and Texas (Decapoda: Astacidae). Tulane Studies in
Zoology and
Botany, 19(1,2): 22-25, figures 1-9.
Central projection and cephalic
process of first pleopod directed distally (Fig.
39b);
caudal margin of main body of appendage sometimes with
angular notch near base
of distal 1/3:......................... Procambarus
(G.) simulans regiomontanus
Villalobos, 1954.
(Known only from the type-locality, 5 km. north of Monterrey,
Nuevo León, México.
Literature: Villalobos, 1955).
Fig. 40.
Dorsal view of terminal portion of
abdomens. a, Procambarus gracilis;
b, P. hagenianus. (Arrow indicating
median spine on inner ramus of uropod).
4(2). Cephalic process (cp)
of first pleopod well developed (Fig. 39c); inner ramus of
uropod
with median spine not projecting distally beyond margin of ramus
(Fig. 40a; see also Fig. 38c,
e):...............................................................
Procambarus (G.) gracilis
(Bundy, 1876).
(Burrows in Texas, Oklahoma, Kansas, Arkansas, Missouri, Iowa,
Illinois, and
Wisconsin. A species complex that has been investigated by
Rollin D. Reimer.
Publication of his revision of the species is anticipated in the
near future.
Literature: Williams, 1954a).
EDITOR'S NOTE: The
R.D. Reimer reference referred to above is:
Reimer, R.D., 1975. Procambarus (Girardiella)
curdi, a new crawfish from Arkansas,
Oklahoma, and Texas (Decapoda: Astacidae). Tulane Studies in
Zoology and
Botany, 19(1,2): 22-25, figures 1-9.
Cephalic process of first pleopod
absent (Fig. 39d); inner ramus of uropod with median
spine projecting distally much beyond margin of ramus (Fig.
40b; see also Fig.
21a):.............
..........................................................................
Procambarus (G.) hagerianus
(Faxon, 1884).
(Burrows in central and eastern Mississippi and western
Alabama. A species complex
that is being revised by Joseph F. Fitzpatrick.
Literature: Faxon, 1885, 1914).
