436 



Lake Maxinkuckee, Physical and Biological Survey 



barred. It also has a distinct black line projecting from the eye 

 downward across the cheek, a feature sometimes hinted at by ob- 

 scure markings in the other species, but never as distinct and 

 broad. 



Head 3.75 ; depth 6 ; eye 4 ; snout 4.2 ; maxillary 3.25 ; mandible 

 2.75; interorbital 6; pectoral 1.25; ventral 1.3; D. XIV, 13; A. II, 

 8; scales 7-61-10. 



Body rather long, slender and subterete ; caudal peduncle some- 

 what compressed, its least width one-half its least depth ; head 

 rather long, snout pointed; mouth moderately l-arge, oblique, maxil- 

 lary reaching past anterior part of eye, lower jaw included; pre- 

 maxillaries not protractile ; eye rather large, slightly above axis of 

 body ; interorbital moderately wide, nearly flat ; gill-membranes 

 free from each other and from the isthmus ; opercle with a rather 

 long flap and stout spine ; fins rather large ; distance from origin 



Maxinkuckee Darter (Hadropterus maxinkuckietisis) 



of spinous dorsal to tip of snout slightly greater than base of 

 spinous dorsal or nearly twice base of soft dorsal ; longest dorsal 

 spine 2.25 in head ; soft dorsal higher than spinous portion, 2 in 

 head, the free edge gently curved; origin of anal under that of 

 soft dorsal, its base 2.1 in head; caudal rounded or slightly 

 emarginate. 



Scales firm and strongly ctenoid ; lateral line complete and 

 straight, beginning over opercular spine; top of head and an ob- 

 long area on nape naked, space in front of spinous dorsal with 

 small embedded scales ; opercle with about 7 rows of scales ; cheek 

 with a few small, embedded scales; breast naked, except 2 or 3 

 partially embedded scales on median line; one large scale between 

 ventrals ; belly naked anteriorly, but with about 10 enlarged, stel- 

 late scales posteriorly ; space between ventrals broad, equal to 

 width of base of ventral ; preopercle smooth. 



Color essentially the same as in H. scierus; mottled and ver- 



