100 PROCEEDINGS OF THE ACADEMY OF 



larger size, darker color of the upper parts, and the extension of the flesh color 

 of the abdomen over to the third lateral row of scales ; in C. amcena this color 

 extends only to the second row. 

 Missouri, Dr. P. R. Hoy 



Celuta Helena Kennicott. 



Sj). ch. Snout shorter and narrower than in C. amcena. A single pair of 

 frontal plates. Color above lustrous chestnut brown ; beneath pale yellowish, 

 (flesh color in life) color of the abdomen extending to second lateral row of 

 dorsal scales. 



Readily distinguishable by the suppression of the anterior frontals. 



Monticello, Miss., Miss Helen Teunison ; Southern niinois (abundant in the 

 woods), Dr. H. McVean, Robt. Gow, C. Thomas, L. W. Ashley. 



ICHTHYOLOGICAL NOTICES. 

 BY CHARLES GIRARD, M. D. 



XXVIII. The genus Hadropterus is represented in the waters of the Potomac 

 River by a species, the average size of which is three inches in total length. Its 

 body is subfusiform, compressed, thickest anteriorly and tapering gradually to- 

 wards the peduncle of the tail, which is slightly contracted. The head enters four 

 times and a half in the total length. The posterior extremity of the maxillar bone 

 corresponds to a vertical line intersecting the anterior rim of the orbit. The eye 

 is subcircular and well developed ; its diameter entering about four times in the 

 length of the side of the head; once in advance of its anterior rim. The first 

 dorsal fin is lower and much longer than the second, to which it is contiguous. 

 The posterior margin of the caudal fin is subcrescentic. The anal fin is situated 

 exactly opposite the second dorsal and corresponds to it in extent, but differs 

 from it by its external margin, which is more convex, giving the entire fin a 

 more ovate outline. The ventrals and the pectorals are moderate sized, the 

 former being sublanceolar, the latter subelliptical in their outline. The rays 

 are : D xiv ; 14 ; A 11, 10 ; C 6, 1, 8, 8, 1, 5; V I, 5 ; P 14. The scales are 

 small, longer than deep and very finely pectinated upon their posterior margin. 

 The lateral line constitutes the eighth row of scales, counted from the first dor- 

 sal fin. The ground color is yellowish brown ; the dorsal region being macula- 

 ted with chestnut brown ; whilst a series of rather large, rounded, blackish 

 blotches occupy the middle of the flanks ; a black vertical streak intersects the 

 orbit. The second dorsal and the caudal fins are transversely barred with 

 blackish. The other fins are unicolor, except the first dorsal, which exhibits 

 small black spots close to the rays, below the middle of their height, more con- 

 spicuous anteriorly than posteriorly. 



The species here referred to we will record under the name of H. maculatus ; 

 the specimens examined were caught in an eastern tributary of the Potomac 

 River, in Anne Arundel Co. Md. 



XXIX. Another species of Hadroptervs was collected in the Arkansas River, 

 near Fort Smith, by Dr. George G. Shumard. We propose to call it //. shumardi. 

 It will always be easy to distinguish it from its congeners by the great devel- 

 opement of the anal fin, which is much larger than the secoud dorsal and pro- 

 jects much further back. The body is elongated, rather slender, although taper- 

 ing but little backwards ; its entire length is about two inches and a quarter, in 

 which the head enters four times and a half. The first dorsal fin is longer than 

 the second and nearly as high. I) xi ; 13 ; A n, 11 ; C 6, 1, 8, 7, 1, 5 ; V i, 5 ; 

 p 12. The scales are rather small. The color is somewhat altered by the 

 preserving fluid : an olivaceous tint appears to have existed over the dorsal re- 

 gion with darker spots or dots, whilst the abdominal region is rather whitish. 

 The caudal fin exhibits transverse dark lines, and the first dorsal a black spot 

 at its posterior portion; a dark vertical streak intersects also the orbit. 



[March, 



