HARRIS : CRAYFISHES GENUS CAMBARUS. 101 



nant pond near Lawrence, Kan., in August, 1901, the only time 

 he had ever taken an adult specimen in open water during the 

 summer. 



The males of this species must spend considerably more of 

 their time in the burrows than do the females, as has been shown 

 by the observation of Garman and Harris, who have seen only 

 three adult males, all first-form, the adult second-form male be- 

 ing as yet unknown. 



See, also, Hargitt ('90), under C. diogenes, and Holder ('86), 

 under C. diogenes. 



Cambarus hagenianus Fax.^^ 



39. South Carolina. 



1. Seaboard of Charleston [Charleeton county]. (F., '85.) 



Cambarus hamulatus Cope and Pack. 



41. Tennessee. 



1. [ county], Nickajack cave. (F., '85.) 



See Faxon ('85), under C. pellucidus. 



Cambarus harrisonii Fax. 



24. Missouri. 



1. [Trib. Meramec^R.], Irondale [Washington county]. (F., '85.) 



Cambarus hayi Fax. 



23. Mississippi. 



1. Noxubee river [or Oaknoxubee creek], Macoun [Noxubee county]. (F., '85.) 



2. [Trib. Tombigbee R,], Artesia [Lowndes county]. (F., '89.) 



Cambarus hylas Fax. 



24. Missouri. 



1. West fork of Black river, Reynolds county. (F., '90.) 



Cambarus immunis Hag. 



I. Alabama. 



1. [Trib. Tennessee R.], Huntsville [Madison county]. (F., '85.) 



II. Illinois. 



1. [Mississippi R.], Oquawka [Henderson county]. (F., '85.) 



2. [Trib. Mississippi R.], Bellville [St. Clair county]. (F. '85.) 



3. [Trib. Illinois R.], Lawn Ridge [Marshall county]. (F., '85.) 



4. [Trib. Illinois R.], Normal [McLean county]. (F., '85.) 



5. [ R.], Aux Plains [ county]. (F., '85.) 



16. The adoption of the name '^. Juigpnianw^ Fax., proposed by Faxon ('8.'i) for Hapen's ma- 

 terial, in case it should prove to be specifically distinct from Erichson's C. curolinus, has been 

 shown to be necessary by Hay ('02). 



