356 Lake Maxinkuckee, Physical and Biological Survey 



inch in diameter, and another contained 745 eggs which ran 30 

 to the inch. 



As a bait minnow the Silver-fin is not without value. It is 

 very active when on the hook ; and this, with its bright silvery color- 

 ation, should make it attractive to black bass. It is hardy and 

 lives well in the live-box, minnow bucket, and on the hook. The 

 smaller ones are good bait for perch and rock bass, the largest ones 

 for walleyed pike. 



Head 4-i in body; depth 4 in adult males; females and young 

 more slender, 4| to 5; eye small, 4^ to 4| in head; snout 3 to 3; 

 maxillary 3 to 3f ; mandible 3^ to 4 ; D. 8 ; A. 8 or 9 ; scales 5-38 

 to 40-3; teeth 1, 4-4, 1, the edges more or less distinctly serrate. 

 Body moderately elongate, somewhat compressed, the dorsal and 

 ventral outlines regularly and gently arched; head rather long, 



Silver-fin (Notropis whipplii) 



triangular, the snout pointed; mouth rather small, quite oblique, 

 the lower jaw received within the upper when the mouth is closed; 

 maxillary not reaching orbit; eye small, in axis of body; caudal 

 peduncle rather long and compressed. Fins moderate, origin of 

 dorsal midway between tip of snout and base of caudal and over 

 base of ventrals ; origin of anal posterior to base of last dorsal ray ; 

 free edge of dorsal straight, the longest rays 1.2 in head ; free edge 

 of anal somewhat concave in the depressed fin, more nearly straight 

 when the fin is expanded, the longest ray 1.25 in head; pectoral 

 slender, slightly falcate, 1.3 in head; ventrals short, barely reach- 

 ing anal, 1.4 in head; caudal broadly forked, the notch rounded, the 

 lobes equal, 1 in head ; scales firm, closely imbricated, much deeper 

 than long, not crowded anteriorly ; top of head of male in breeding 

 season covered with prominent tubercles. 



Color of male leaden silvery, brightest and with bluish luster 

 on middle of side ; back darker, inclining to olivaceous ; underparts 



