NOMENCLATURE AND MORPHOLOGY. 89 



streams ; vulgar names, Black Bass, Brown Bass, Black Perch, 

 etc.; tins olivaceous, dorsal with 23 rays, whereof 9 are spiny 

 and rather shorter ; anal with 12 rays, whereof 2 are spiny ; 

 pectorals ti-apezoidal, 16 rays; branchial rays uncovered; iris 

 brown. This fish might jierhaps form another subgenus, by the 

 large mouth, head without upper sutures, spine hardly decur- 

 rent, nearly equal jaws, gill covers, lateral line, etc. Its tail 

 and preopercule ai'e somewhat like Calliurus. It might be called 

 Nemocampsis, meaning flexuose line. Diameter one-fourth of the 

 length."— (Rafixesque, Icli. Ohi. 31, 1820.) 



Lepomis salmonea Rafinesque, 1820. — "Olivaceous brown 

 above, sides pale with some round yellowish spots, beneath 

 white ; preopercule simple, head without sutures, lower jaw 

 hardly longer, spines flat, short, acute, and decurrent above and 

 beneath, opercule acute beneath the spines; tail lunulate, tip 

 blackish ; vent posterior. 



" Length from 6 to 24 inches. Vulgar names White Trout, 

 Brown Trout, Trout Pearch, Trout Bass, Brown Bass, Black 

 Bass, Black Pearch, etc. Common in the Kentucky, Ohio, 

 Green and Licking rivers, etc. It offers a delicate white flesh, 

 similar to the Perca salmonea. It is a voracious fish, with many 

 rows of sharp teeth on the jaws and in the throat. It bites 

 easily at the hook, and eats suckers, minnows and chubs. 

 Diameter one-fifth of the length. Fins olivaceous brown ; dorsal 

 with 25 rays, whereof 10 are spiny, slightly depressed between 

 them; anal rounded small, 3 and 11 rays. Pectoral acute trap- 

 ezoidal 18 rays. Thoracic 1 and 5, spiny ray half the length. 

 Tail with 2-4 rays. Iris silvery." — (Rafinesque, Ich. Ohi. 32, 

 1820.) 



Lepomis notata Rafinesque, 1820. — "This species differs 

 merely from the foregoing \_Lepomis salmonea'] by having a black 

 spot on the margin of the opercule, two diagonal brown stripes 

 on each side of the head below the eyes, and all the fins yellow, 

 except the tail, which is black at the end, with a narroAv white 



