38 



scends perpendicularly from inferior orbit of eye to a line with 

 angle of jaws ; another, but smaller one, at anterior angle of 

 eye ; while a third, much more distinctly marked, of irregular 

 breadth, runs from posterior orbit to angle of operculum. Be- 

 hind this, upon shoulder, is a circular black spot, appearing at 

 first sight much like the arrangement in Pomotis appendix. 

 First dorsal colorless, with the exception of the delicately tinted 

 margin of the connecting membrane. Second dorsal, pectorals, 

 ventrals, anal, and caudal, thickly spotted with black, which, in 

 the caudal especially, gives rise to well-defined transverse bars. 



Form slender ; the dorsal line depressed at occiput ; slightly 

 convex, posteriorly. Ventral line nearly straight. Head flat- 

 tened above, convex on cheeks ; its length about one seventh of 

 the entire length of fish. Opercular spine well marked. Jaws 

 nearly equal ; the lower, if any thing, the longer ; armed, as 

 also the vomer, with small, yet distinctly visible, and sharp 

 teeth. Beneath jaws, around eyes, and upcm cheeks, several 

 rows of mucous pores. Eyes large, projecting ; distance between 

 them little over half their diameter. Nostrils double ; the ante- 

 rior and inferior the larger. Lateral line describes a double 

 curve, slightly convex over pectorals, equally concave beneath 

 second dorsal. Anus at about median line. 



First dorsal entirely spinous, low and subquadrangular. 



Second dorsal a little longer and nearly four limes higher 

 than the preceding, like which it is proportionately smaller in 

 adult than in younger specimens. 



Pectorals large. Anal as high as second dorsal. Caudal fan- 

 shaped and rounded. 



D. 7, 1, 12. P. 12. V. 6. A. 2, 10. C. 16. 



In one of the several specimens examined, the number of rays 

 in the first dorsal was 8 ; in all the others 7, as above. 



Length, 2^ inches. 



Taken by the late Rev. J. H. Linsley, of Stratford, Ct., in 

 whose memory I have named it, in streams at Walcott, Wayne 

 Co. N. Y. near Lake Ontario. 



This species di tiers greatly from the Olmsiedi of my father, 

 the only one with which it might be confounded. From all 

 others it is distinguished by the less number of rays in the first 



