IMPOUNDING WATER TO CONTROL BREEDING OF MOSQUITOES. 11 



Table 5. — List of fishes taken in 38 collections from, seasonal am,d permanent 

 toaters {exclusive of Mississippi River) in the vicinity of Mound, La., 1916- 

 1917, by F. M. Barnes, United States Bureau of Fisheries. 



Conunon name. 



Number 

 of collec- 

 tions. 



Number 

 of speci- 

 mens. 



Gambusia affinis 



Lepomis cyanellus 



Lepomis hnmilis 



Lepomis megalotis 



Lepomis paUidus 



Lepomis symmetricus 



Lepomis ischyrus •. 



Lepomis euryorus , 



Dorosoma cepedianum , 



Notemigonus crysoleucas 



Ameiurus nebulosus 



Ameiurus melas 



Pom oxis annularis , 



Pomoxis sparoides 



Chaenobryttus gulosus 



Signalosa atchafalayae 



Aphredoderus sayanus 



Roccus chrysops 



Hybopsis hyostomus (sp. ?). 



Micropterus salmoides 



Micropterus dolomieu 



Hiodon alosoides 



Hiodon tergisus 



Aplodinotus grunniens 



Centrarchus macropterus 



Ictiobus cyprinella 



Ictiobus bubalus 



Perctna caprodes 



Amia calva 



Lepisosteus tristoechus 



Labidesthes sicculus 



Stizostedion vitreum 



Elassoma zonatum 



Fundulus chrysotus 



Ictalurus furcatus 



Carpiodes thompsoni 



Carpiodes veLifer 



Eupomotis (sp. ?) 



Serranidae(gen.?, sp. ?) 



Top minnow 



Green sunfish 



Sunflsh 



Sunfish 



Blue-gill sunflsh 



Sunfish 



Sunfish 



Sunfish 



Hickory shad 



Roach, shiner 



Common bullhead 



Black bullhead 



Crappie 



Cahco bass 



Warmouth bass, "goggle-eye" 



Shad 



Pirate perck 



White bass 



Large-m.outh black bass, "trout' 



simd!!!;!!!!!;;!;!!!!!!!!!!!!!!! 



Fresh water drum, "gaspergou' 



Round sunfish 



Common buffalo 



Small-mouth buffalo 



Log perch 



Bowfin, "grinnel" 



Alligator-gar 



Skipjack 



Pigmy simfish. 



KiUifish 



Blue cat 



2,410 

 151 

 126 

 6 

 9 

 4 

 1 



13 

 483 

 582 

 198 

 1 

 836 

 104 

 35 

 313 

 20 

 4 



20 



5 



4 



21 



22 



6 



60 



14 



» 1 

 2 

 4 

 6 

 5 

 5 



75 

 8 

 4 

 2 



73 

 1 

 1 



A comparison between the numbers of Gambusia in the natural 

 bayou and in all other classes of water shows an average of 25 speci- 

 mens for each collection in the bayou and an average of 63 per 

 collection for all other places. These figures indicate that these little 

 fish are very abundant and very generally distributed in the region. 

 The larger average per collection for all classes of water, as compared 

 with the natural bayou, is explained by the fact that certain collec- 

 tions were made at the season of low stages of water which found 

 these fish highly concentrated in some locations. 



CLEARING THE BAYOU. 



The clearing of the bayou was done during August, 1915. It was 

 accomplished then for the reasons that the water in the stream was 

 at its lowest level and that the plantation had finished its cultivation 

 of the crops but had not as yet begun to harvest. This plan gave 

 minimum water conditions and a supply of labor for the work with- 

 out interference with the plantation operations. The smaller under- 



