CYPKINID^. 63 



of eye straight to upper half of caudal, passing around the nose 5 below 

 this sharply dusky ; the opercles, lower half of eye, and lips in the dark 

 band. 



Teeth 1, 4-4, 1, hooked and sharp-edged. 



Types, No. 9296, United States National Museum, from Georgia. 

 Collector, Hugh M. Neisler ; exact locality not specified. Numerous 

 specimens in poor condition, showing no trace of tubercles. 



Length 2^ inches. 



This small, handsome species is related to P. pyrrJiomelas and P, 

 xcenurus, but needs no special comparison with either. The small size, 

 the coloration, and immense development of the dorsal and anal fins 

 distinguish it completely. 



45. SEMOTILUS THOREAUIANUS, sp. nov. 



Body short and rather stout, rather abruptly narrowed behind dorsal ; 

 depth 3| to 4J in length. Head short and thick, 3f in length, almost 

 round in the larger specimen. Mouth large, oblique, the jaws about 

 equal. Barbel lateral, better developed than in S, corporalis. Eye 

 small, 4J to 5 in head, 1^ in snout, about 2 in interorbital space, cheeks 

 swollen ; snout in a small male specimen 3 inches long, with a bilobed 

 tubercle on each side. 



Fin-rays : — Dorsal 1, 8 ; anal I, 7. Dorsal entirely behind ventrals, its 

 last ray over the first of anal; caudal peduncle slender; fins all short; 

 pectorals not reaching nearly to ventrals, the latter not to vent. 



Scales larger than in S. corporalis, not much crowded forward, 5-48-9 ; 

 lateral line much decurved. 



Coloration of S. corporalis, the black dorsal spot distinct. 



Types, No. 9296, United States National Museum, from "Georgia". 

 Collector, Hugh M. Neisler. Two specimens, the longest 3| inches 

 long. 



This species differs from Semotilus corporalis in its large scales, more 

 backward dorsal, short head, and small size. The number of scales in 

 the lateral line will probably always distinguish it. 



This species is named in honor of the late Henry David Thoreau, of 

 Concord, Mass., an excellent ichthyologist, one of the first to say a good 

 word for the study of Cyprinidse.* 



* I am the wiser in respect to all knowledge, and the better qualified for all fortunes, 

 for knowing that there is a minnow in the brook. Methinks I have need even of his 

 sympathy and to be his fellow in a degree. * * 



I would know even the number of their fin-pays, and how many scales compose the 

 lateral line.— (Thoreau, Essay on Nat. Hist. Mass. 1842. <Excur8ion8, ed. 1863, p. 56.) 



