Jordan and Evermann. Fishes of North America. 1031 



quadrate in form, the hues rather dull ; a small blackish spot at each end 

 of the lateral line. Length 6 inches. Ohio to Iowa, south to Kentucky 

 and Oklahoma; in sandy rivers; locally common, especially in Arkansas; 

 a well-marked species, notable for its very slender head. (0of6f , tapering ; 

 head.) 



)>}i<is<> '']iltahun, NELSON, Bull. Ills. Mus. Nat. Hist., i, 35, 1876, Illinois River and 

 its tributaries. (Coll. Nelson.) 



Alf<n -dinx jrfiojcocephalus, JORDAN & GILBERT, Synopsis, 501, 1883. 

 Percina phojcocepjiala, BOULENGER, Cat., i, 63. 



1419. HADROPTERUS MACROCEPHALUS (Cope). 



Head 3i to 4 ; depth 6 to 7 ; eye 4-J- in head, shorter than snout. D. XIII 

 to XVI-12 to 14 ; A. II, 9 to 11 ; scales 11-88 to 90-16, pores 74 to 83. 

 Body elongate ; head longer and more slender than in Hadropterm aspro ; 

 maxillary about reaching pupil, 3J in head ; nape scaly ; cheek naked, or 

 with a few rudimentary scales behind eye; opercle with very small 

 cycloid scales above, rarely quite naked ; breast naked ; scales on middle 

 line of belly enlarged and caducous. Gill membranes separate. Pectoral 

 1| in head ; anal spines subequal ; ventrals well separated. Color light 

 brown ; 9 black spots on side, confluent, squarish in form, sharply defined 

 and edged above by a continuous, undulating pale streak from eye to 

 base of caudal; fins, including ventrals, barred ; a small but very dis- 

 tinct spot at base of caudal ; a median dark shade across spinous dorsal. 

 West slope of the Alleghanies from Pennsylvania southward in mountain 

 streams ; rather scarce ; .known from Youghiogheny River, Foxburg, Penn- 

 sylvania; north fork of Holston River, Saltville, Virginia; middle fork 

 of Hoiston River, Glade Spring, Virginia ; Big Sandy, Green, and Cum- 

 berland rivers, Kentucky; and Clinch River, Tennessee. A large and 

 interesting darter ; found only in clear ri vers, not in brooks, (//c/cpof , 

 long; KeQa/ifj, head.) 



Etheostoma macrocephalum, COPE, Trans. Amer. Philos. Soc., 1866, 400, Youghiogheny River, 

 Pennsylvania; VAILLANT, Recherches, 64, 1873, with plate; JORDAN, Bull. U. S. Fish 

 Conim., via, 1888 (1890), 147. 



Alvordiusmacrocephalus, JORDAN & GILBERT, Synopsis, 501, 1883. 



Percina macrocephalus, BOULENGER, Cat., i, 62. 



1420. HADROPTERUS MACULATUS (Girard). 



This species has never been satisfactorily identified since its first descrip- 

 tion. It seems to be close to Hadropterux guntheri and to Hadropterm 

 aspro, but is apparently characterized by the naked head. The following 

 is the original description: "Amongst the fishes collected by Major B. 

 Alvord, at Fort Gratiot, Lake Huron, there is a species of Etheostomid, the 

 generic character of which reminds us somewhat of those given to the 

 genus Hadropterus. The opercle and cheeks, however, are scaleless, as 

 well as the throat, Avhich is minutely prickly. The first dorsal fin is longer 

 and lower than the second, which is equal to the anal. The caudal is 

 emarginated posteriorly. The species itself being yet undescribed, we 

 shall call it Alvordius maculatus. The specimen before us measures 2f 



