Lake Maxinkuckee, Physical and Biological Survey 437 



miculated with light and dark brown or blackish, the middle line 

 of back with about 9 large roundish dark confluent areas each sur- 

 rounded by a wavy whitish line ; middle of side with about 7 large, 

 confluent dark spots, the anterior 2 largest and longest, the third 

 small, the fourth large and the remaining 3 progressively smaller ; 

 under parts yellowish white; top of head dark; a narrow whitish 

 line around upper, posterior part of orbit ; a broad black line down- 

 ward from eye, much more distinct than in related species; upper 

 part of preopercle and nearly whole opercle dark, each dusted on 

 lower part; cheek dusted with fine dark specks; an irregular pale 

 area at anterior end of lateral line; spinous dorsal ashy, the first 

 3 spines black on the middle portion, the other spines dark but 

 not so distinctly so, tips of last few spines dark; soft dorsal light 

 brownish or grayish, crossed near the base by a series of dark spots 

 and above by 2 series of whitish spots; caudal spotted or mottled 

 with white and brown, not barred as in related species ; anal white, 

 dusted with brownish; ventrals whitish, with fine dark dustings; 

 pectoral whitish, yellowish at base, followed by 2 alternating series 

 of dusty and whitish spots. 



This species is related to H. scierus, from which it differs 

 chiefly in having the dorsal fins united, in having the maxillary 

 reaching beyond front of orbit, in the larger scales, the free gill- 

 membranes, and in the smooth preopercle. 



Of this species we have but 2 specimens, the type, a specimen 

 3.5 inches long, taken in Aubeenaubee Creek about one-half mile 

 from the lake, August 4, 1899, and another, the locality label for 

 which has been lost, but probably from the same stream. 



59. JOHNNY DARTER 



BOLEOSOMA NIGRUM (Rafinesque) 



(Plate 34) 



This little fish is abundant almost everywhere in the eastern 

 United States, and is especially common in small streams among 

 gravel and weeds. At Lake Maxinkuckee it is not very abundant ; 

 occasional examples are seen lying on the bottom near shore or are 

 raked up with weeds. During the seining operations 127 examples 

 were obtained. One or more specimens were procured in each of 

 45 of the 612 hauls ; the greatest number gotten in one haul being 

 12. Occasionally people seining along shore for minnows catch a 

 few examples of this species. 



Looked at from above while lying on the bottom, the Johnny 

 Darter, with his slender body and spread fins, ready to go at a 



