110 KANSAS UNIVERSITY SCIENCE BULLETIN. 



4. James river, Springfield [Greene county]. (F., '98.) 



5. [Trib. Neosho or Grand R.], Day Brook, Jasper county. (F., '98.) 



6. [Hickory creek], Neosho, Newton county. (F., '98.) 



42. Texas. 



1. Red river, Arthur [Lamar county]. (F., '98.) 



Harris ('02) made some observations on the habits of this 

 species near Springfield, Greene county, Missouri, during the 

 early part of June, 1901. (24, 1, 2, and 3.) In the James 

 river, near Galloway, about eight miles southeast of Spring- 

 field, this was the only species observed, although probably 

 not the only one occurring in the river. At this place the 

 James river is a rather swiftly flowing stream, with rocky bed, 

 quite shallow in the swiftly running places, and with rather 

 high wooded hills along the sides. ^* Crayfish were quite 

 abundant, being found under loose stones and resting in the 

 strands of rich vegetation,^** which stood almost horizontally in 

 the swiftly running water. Around Boiling Springs, where 

 one of the cool, subterranean rivers of the region breaks through 

 the rocky bed of the stream, they were very plentiful. 



In a clear, rocky stream, about four miles northwest of Spring- 

 field (24, 1) crayfish were found in abundance, the smaller and 

 more numerous species being C neglectus, and were very active, 

 darting from stone to stone when disturbed, but usually re- 

 maining under cover but a short time. In the stream flowing 

 from Galloway cave (24, 2) C. neglectus and C. rusticus were 

 taken, the former being the more abundant, if not the only 

 species found at the mouth of the cave, where it occurred in 

 great abundance under the small, loose stones. Here the 

 water has practically the same temperature as that within the 

 cave, which is said to remain at 57 deg. F. winter and summer. 

 The animals were very inactive, the cold water, apparently, 

 numbing them to such an extent that it was not at all difficult 

 to take them with the hand.-^ A little distance down the 



stream, where the water was warm, the animals were noticed 

 to be as active as usual. A striking efl'ect of the low tempera- 

 ture seems to be seen in the hatching of the eggs. Many of the 



19. Broadhead ('74) says of the streams of southwestern Missouri : " Those flowing through 

 the Lower Carboniferous rocks of the southwest are clear, full, and rapid, and afford a mighty 

 water-power. Among them are Spring river. Centre creek. Shoal creek, James's Fork of White 

 river, Wilson's creek, Finley creek, and the head streams flowing into the Sac river." 



20. Probably Fontinalis. 



21. The water here, he states, is probably not more than fi^fteen degrees above that in which 

 Harris ('02) found C, virilis so numb as to be almost incapable of movement. 



