1388 Bulletin ^7, United States National Museum. 



anal somewhat blackish ; edge of opercle slightly darker. Here described 

 from Key West specimens. West Indies, ranging from Cape Cod to the 

 West Indies, crossing the ocean to the Canary Islands; accidental in the 

 Mediterranean, once taken at Palermo by Professor Pietro Doderlein. Not 

 rare off our Atlantic coasts, becoming rather common southward, espe- 

 cially at Key West. It has long been noted for its habit of following 

 vessels, supposably for the waste food thrown from them, hence called 

 Rudder-fish. A fish of considerable game qualities. Length 18 inches, 

 (feminine of sectator, one who follows.) 



Perca marina sectatrix (the Rudder-fish), CATESBY, Nat. Hist. Car. 1738, Carolina. 

 Perca saltarix, LINNAEUS, Syst. Nat., Ed. x, 293, 1758 (misprint, incorrectly copied from 



CATESBY, who called it sectitrix), Carolina. 

 Chcetodon cyprinaceus (Broussonet), GMELIN, Syst. Nat., i, 1269, 1788, name only; on a 



specimen from the tropical Atlantic. (Coll. Parkinson, in Voyage Capt. Cook: 



described by CUVIER & VALENCIENNES, I.e., vm, 263.) 

 Pimelepterus bosquii, LACEPEDE, Hist. Nat. Poiss., iv, 429, 1803, South Carolina. (Coll. 



Bosc.) 

 Pimelepterus oblongior, CUVIER & VALENCIENNES, Hist. Nat. Poiss., vn, 264, 1831, locality 



unknown ; depth 3 in total length ; 14 longitudinal streaks. 



Pimelepterus bosci var. sicula, DODERLEIN, Nat. Sicil., Ann. 11, fasc. 2, 1883, Palermo. 

 Pimelepterus bosci, CUVIER & VALENCIENNES, Hist. Nat. Pois., vn, 258, pi. 187, 1831 ; JORDAN 



& GILBERT, Synopsis, 561, 1883. 



Perca sectatrix, LINNJEUS, Syst. Nat., Ed. xn, 486, 1766. 

 Cyphosus bosqui, JORDAN, Proc. U. S. Nat. Mus. 1884, 128. 

 Kyphosus sectatrix, JORDAN & FESLER, I. c., 525, 1893. 



1767. KYPHOSUS LUTESCENS (Jordan & Gilbert). 



Head 3f ; depth 2. D. XI, 11 ; A. Ill, 11 ; scales 12-67-22. Body oblong- 

 elliptical, robust ; the dorsal and ventral outlines moderately and nearly 

 equally arched; head bluntish; the profile evenly curved, without depres- 

 sion in front of the eye; the preorbital region less gibbous than in K. secta- 

 trix; mouth terminal, the lower jaw slightly the shorter, the broad maxillary 

 reaching to opposite the front of the eye, its width about equal to that of 

 the preorbital; teeth in both jaws broad, rounded or subtrnncate, in 

 single rows, the horizontal roots longer than the crown, but not twice as 

 long; about 36 teeth in each jaw; behind the large teeth in each jaw is a 

 band of rasp-like asperities; gill rakers short, about 6 -{-16; preopercle 

 with its angle rounded and membrauaceous, the vertical limb straight and 

 minutely serrulate; cheeks with 10 or 11 rows of scales, including smaller 

 ones; preorbital, jaws, snout, rim of eye, and rounded part of preopercle 

 naked, the head otherwise closely scaly ; scales on body rather small, firm, 

 smoothish, those on breast smaller; fins, as usual, with the soft parts 

 covered with small scales; dorsal spines rather high and strong, the 

 middle ones highest, higher than the soft rays, nearly twice the height of 

 the last spine, and 2 in head, 3f in greatest depth of body; soft dorsal 

 rather high, not at all falcate, the first rays | the length of the head ; anal 

 fin similar, shorter and higher, the spines graduated, the longest rays 

 ( more than | length of head; caudal wide, moderately forked, the lobes 

 equal, the longer as long or a little longer than head, the depth of the 



