70 KANSAS UNIVERSITY SCIENCB BULLETIN. 



in company with C. hlandingii, and that, "According to Mr. P. R. 

 Uhler, C. affinis is the common form in the warmer parts of the 

 rivers and creeks of Maryland, underneath the stones. In his 

 collection are specimens from Montgomery county labeled as 

 found in stagnant pools, and specimens from Alleghany county, 

 four miles below Cumberland, were taken from 'holes in the 

 bottom and sides of a canal.' " 



See, also, parasitism and Faxon ('85), under C. iiellucidus. 



Oambarus alabamensis Fax. 



1. Alabama. 



1. Second creek, Waterloo, Lauderdale county. (F.,'85) 



Oambarus alleni Fax. 



8. Florida. 



1. St. Johns river, Hawkinsville, Orange county. (F., '85.) 



2. [Gulf drainage], Hernando county. (F.,'85.) 



3. Caloosahatchee river [Lee or Desoto county]. (F., '90.) 



4. A little creek, Hillsborough" county. (Lonnberg, '94.) 



5. Small lakes around Apopka and several other places. Orange county. 



(Lonnberg, '94.) 



6. Ditches and small ponds, Arcadia, Desoto county. (Lonnberg, '94.) 



Lonnberg ('94) expresses the opinion that this is a form 

 widely distributed in south Florida, and that C. alleni and C. 

 fallax, having never been found outside of the state, have prob- 

 ably become differentiated as species there, and that their ex- 

 istence as such can, then, not extend farther back than to the 

 Pliocene. 



From the catalogue it will be seen that the distribution is 

 quite extensive, and that they are found in the territory 

 drained bv both the Gulf of Mexico and the Atlantic. 



Lonnberg ('95) says of C. alleni and C. fallax in Florida: 

 "They lived in creeks, small lakes, and ponds, very often hid- 

 ing in the rich vegetation there, or under logs, boards, and so 

 on. Sometimes I found them digging holes on the shore, at 

 low water, and these holes often went down to such a depth 

 that the water came up into them." 



C. alleni he took in October in a small creek in Hillsborough 

 county, all the males being second-form. In Orange county, he 

 found this species in small lakes around Apopka "and several 

 other places." At Acadia, Desoto county, he took it in ditches 

 and small ponds. 



