126 



BULLETIN OF THE BUREAU OF FISHERIES 



Insects only, consisting chiefly of midge larvae were found in the eight stomachs examined. 

 This fish was taken in a borrow pit at Craigside, where it was common, and one specimen was 

 secured in a sluggish stream at Browning. 



28. Copelandellus fusiformis (Girard) 



Roleosoma fusiformis Girard, Proa, Bost. Soc. Nat. Hist., 1854, p. 41. 



This species does not appear to be very common locally, as only four specimens, ranging in 

 length from 28 to 40 millimeters (13^8 to inches), were taken. In this species the lateral line 

 is incomplete, ending under the base of the second dorsal or somewhat in advance of that point, 

 and it is notably curved upward, following the outline of the back. The premaxillaries are not 

 protractile. The head in the specimens in hand is contained 3.7 to 4 in the standard length; 

 depth 5.15 to 5.35; D. IX-9 to 11; A. I, 6 to 7; scales 50 to 55. 



Only fragments of insects were found in the three stomachs examined. The specimens were 

 taken in a borrow pit near Craigside and in a very sluggish stream at Browning. 



Genus POMOXIS Rafinesque; Crappies 



KEY TO THE SPECIES 



a. Eye of moderate size, 3.1 to 5.4 in head, equal to or shorter than snout; gill rakers of moderate 

 length, shorter than snout. 

 b. Body usually not very deep, the depth 2.4 to 2.7 in standard length; dorsal profile deeply 

 concave over eyes, more or less S-shaped in outline; mouth moderately oblique, a straight 

 line from posterior margin of maxillary and perpendicular with anterior margin of pre- 

 maxillary usually passing in front of base of dorsal; dorsal spines usually 6, rarely 5, 

 occasionally 7 (among 55 specimens, 1 had 5 spines, 44 had 6, and 10 had 7 spines) ; sides 

 often with indications of dark crossbars; anal often dusky, but without black spots 



annularis, p. 126 



bb. Body usually deeper, the depth 2.25 to 2.6 in standard length; dorsal profile less deeply 

 concave over eyes, the outline less strongly S-shaped; mouth rather strongly oblique, a 

 straight line from posterior margin of maxillary and perpendicular with anterior margin 

 of premaxillary, usually passing well behind origin of dorsal; dorsal spines usually 7, rarely 

 6, occasionally 8 (among 43 specimens, 4 had 6 spines, 30 had 7, and 9 had 8 spines) ; 

 sides usually more profusely spotted with dark, the markings not tending to form cross- 

 bars; anal fin usually with dark spots sparoides, p. 127 



aa. Eye very large, 2.6 to 2.9 in head, distinctly longer than snout; gill rakers long and slender, 

 equal to length of snout; body not very deep, the depth 2.55 to 2.85; dorsal profile scarcely 

 concave over eyes; mouth quite oblique, a straight line from posterior margin of maxillary 

 and perpendicular with anterior margin of premaxillary, passing somewhat posterior to 

 origin of dorsal; dorsal spines 7, occasionally 8 or 9; color plain, the vertical fins usually 

 more or less dusky, without definite dark spots barberi n. sp., p. 128 



29. Pomoxis annularis Rafinesque 



White crappie 



Pomoxis annularis Rafinesque, Amer. Month. Mag., 1818, p. 41. 



The diagnostic characters of this and the related species are shown in the key presented 

 herewith. In separating this species from sparoides, any one of the characters mentioned can not 

 always be relied upon, as all of them either overlap or are at times indistinct. A comparison of 

 three or more characters, therefore, often is necessary for positive identification. 



Of the two common species of crappie (white and black), this one appears to be the most 

 numerous locally, occurring in a ratio of about two to three. Forbes and Richardson (1908, 

 p. 240) indicate it as having a more southern range than the black crappie, P. sparoides. At 

 Greenwood the two species frequently were taken together in the same ponds. 



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