Crayfishes of Georgia Overview List of Georgia Species Species Lists by Drainage Crayfish Identification Keys by Drainage Ecology and Life History Links and Other Useful Information Glossary
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Dichotomous Key to the Crayfishes of the Ochlockonee River System

1a. Two cervical spines (Fig. 1A).......................Procambarus spiculifer
1b. One or zero cervical spines (Fig. 1B).................................go to 2

cervical spines

Figure 1. Lateral view of crayfish indicating number and position of cervical spines. Modified from Hobbs (1981).

2a. Rostrum long and pointed with marginal spines and acumen present (Fig. 2A).......................................Procambarus paeninsulanus
2b. Rostrum short and rounded with no marginal spines and no acumen...............................................................Procambarus talpoides

spiculifer talpoides small

Figure 2. Rostrum shape of A) Procambarus paeninsulanus and B) P. talpoides.  Modified from Hobbs (1981).






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