78 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



from the shock he was seized. Xeither this species nor the black-bass 

 would take the hook, though ever so temptingly dangled in his very 

 face; but the rirle, used by the botanist of the party as above de- 

 scribed, supplied our table with "the best the streams had in stock." 



22. Ambloplites rupestris, Rafinesque. (845.) 



While this species occurred in the collections in only the West Fork 

 of Black River, Reynolds County, and in Spring Valley Creek and 

 Jack's Fork, Shannon County, it no doubt occurs in every stream in 

 the region traversed. 



23. Lepomis megalotis, Rafinesque. (864.) 

 Jack's Fork, Shannon County. 



24 Micropterus dolomieu, Lacepede. (877.) 



This species was very abundant in all the streams visited. In the 

 deeper portions of the clear, large streams, resting near the bottom, 

 and motionless, could sometimes be seen a score or more full-grown 

 specimens. Nothing could induce them to take the hook, nor were 

 they easily alarmed. At this season of the year they appeared to 

 move in schools, and when one was seen others were sure to be found 

 in the immediate neighborhood. This form makes nests by bringing 

 to a single point piles of pebbles and cobblestones, the river bottom, 

 in favorable localities, presenting many such piles. The small-mouthed 

 black-bass is sometimes called "trout" in Southern Missouri, but that 

 name was more often applied to the pickerel, while the name "perch," 

 for this form, appeared to be more commonly employed. 



25. Boleosoma olmstedi ozarcanum, Jordan and Gilbert. (885^.) 

 Jack's Fork, Shannon County, and Big Creek, Texas County. This 



very beautiful little darter occurred abundantly in Big Creek. It was 

 much more rare at the other locality. 



26. Diplesion blennioides, Rafinesque. (894.) 



Jack's Fork and Sinking Creek, Shannon County; West Fork of 

 Black River, Reynolds County. This species, usually abundant, oc- 

 curred but rarely in our collections. The range of coloration is 

 exceedingly variable, though green predominates. However, the Sink- 

 ing Creek specimens presented but a modicum of that color, the domi- 

 nating shade being yellow, with black or greenish-black sparsely- 

 distributed blotches. A single specimen from Jack's Fork is almost 

 entirely black, with hardly a suspicion of green. This specimen, too, 

 was the largest taken, measuring fully five and one-fourth inches. 



