\ IN THE ALLEGHENY REGION OF SOUTH-WESTERN VIRGINIA. 215 



/9/9. Dorsal with 10 spines; scaled anterior to dorsal fin, and 

 on cheeks and operculum. 

 Dorsal outline elevated, depth one-fourth length ; head exceedingly 

 short and obtuse, orbit oblique ; dorsal spines ten. A dorsal and 

 lateral series of quadrate blaclc-green blotches ; dorso-lateral 

 region red-spotted; belly saffron, unspotted; pectoral fin unspot- 

 ted, second dorsal with membrane red, ..... simoteeuji. 



Hyostoma blennioperca Cope, sp. nov. 



This species bears considerable resemblance to the H. cyma t og r a mm u m 

 Abb., but constantly differs as given in the table, and grows to a considerably larger 

 size. Specimens of the latter from different localities have been under the eye of the 

 writer; among others, several from the Miami River. These differ from Abbott's 

 type in having 13 dorsal rays instead of 12, one more row of scales above the lateral 

 line, and the U-shaped marlvs much more distinct ; in all these points approaching 

 H. blennioperca. 



Common in the tributaries of the Kanawha and Holston. Adults reach 4-25 

 inches in length. 



"a"- 



Hyostoma simoterum Cope, sp. nov. 



This is a shorter and more elevated fish than the last, with a notably smaller head, 

 and very obtuse muzzle. Its physiognomy carries to an extreme the Blennius-like 

 expression of many of the North American allied species. 



Muzzle truncate in profile, mouth small inferior, maxillary bone not reaching orbit. 

 Orbit with its longest diameter directed downwards and forwards, equal (in straight 

 line) the muzzle; enters the head (without spine) 3-75 times, and is '66 more than 

 interorbital width. Head one-fifth length. Scales 10—52—12; pectoral region 

 smooth. Dorsal fin x. 11, well separated, the second much higher than the first; 

 anal opposite first ray of second ii. 7. P. elongate, 13. Caudal slightly lunate, 

 peduncle little contracted. The first dorsal is orange-red margined, spotted behind 

 the first and penultimate rays ; a row of oval red spots extends also across the middle 

 of the fin. The blood-red of the second dorsal is truncated below by a yellowish 

 area, which rises anteriorly. Spot on occiput and operculum, and line on side of 

 muzzle and below eye, black. Caudal fin brown-barred. 



No black scapular spot. Total length 3 in. ; to basis second dorsal 3 in. 6 lin. 

 Longest dorsal spine 4 1., longest articulate ray 5 1., width of parietal region 2-25 1. 



This handsome and peculiar species is one of the most abundant in the Holston 

 River and its tributaries. It occurs in the main river as well as subordinate streams. 

 Its movements are like its congener, and our Boleosoma olmstedi ; lying quiescent on 

 the bottom, or moving from place to place by sudden and forcible darts. 



55 



