KEY TO THE SPECIES OF THE SUBGENUS VETICAMBARUS
1. Chela studded with setae and mesial margin of palm longer than maximum width of chela
(Fig. 114a); areola less than 2.5 times longer that broad (Fig. 114c); fist pleopod with
prominent caudal knob (Fig. 115a):..................................................... Cambarus (V.) pristinus Hobbs, 1965.
(Lotic habitats
in the Caney Fork River drainage in Cumberland County, Tennessee.
Literature: Hobbs, 1965, 1969b).
- Chela not markedly setose and mesial margin of
palm shorter than maximum width of chela
(Fig. 114b); areola more than 2.5 times longer than broad (Fig. 114d); first pleopod with caudal
knob vestigial or absent (Fig. 115b, c):................................................................................................................. 2
 |
| Fig. 114. a-b, Dorsal view of chelae; c-d, Dorsal view of carapaces. a, Cambarus pristinus; b, C. bouchardi; c, C. pristinus; d, C. obeyensis. |
2(1). First pleopod with central
projection directed at angle less than 30 degrees to axis of main shaft of
appendage; mesial process reaching as far, or almost as far,
distally (along principal axis of
appendage) as does central projection
(Fig. 115b; see also Fig.
114b):...................................................
................................................................................................................
Cambarus
(V.) bouchardi Hobbs, 1970.
(Lotic habitats
in the Big South Fork of the Cumberland River in Scott County,
Tennessee.
Literature: Hobbs, 1970b).
- First pleopod with central projection directed at
angle greater than 60 degrees to axis of main
shaft appendage; mesial process not reaching nearly so far distally (along principal axis of
appendage) as does central projection (Fig. 115c; see also Fig. 114d):..................................................
................................................................................................ Cambarus (V.) obeyensis Hobbs and Shoup, 1947.
(Lotic habitats
in the headwaters of the Obey River in Tennessee.
Literature:
Hobbs and Shoup, 1947; Hobbs, 1969b).
 |
| Fig. 115. Lateral view of pleopods. a, Cambarus pristinus; b, C. bouchardi; c, C. obeyensis. (ck, caudal knob). |
END OF SUBGENUS VETICAMBARUS
Last Updated: 10 September 2004