[25] REVIEW OF THE SCL^NID^E. 367 



On the Carolina coast it has received the very inappropriate name of 

 "Sea Trout." 



Specimens of the typical regalis are in the museum at Cambridge from 

 various localities on the Atlantic coast, aud from Mobile and " Florida 

 Keys," on the Gulf coast. Its occurrence in the Gulf must be infrequent, 

 as no specimens have been obtained by Dr. Jordan at Galveston, New- 

 Orleans, Pensacola, Cedar Keys, or Key West. 



The form called OtoUthus tlialassinus by Hoi brook has not been rec- 

 ognized by later collectors, and it has usually been considered identical 

 with (J. regalis. 



A specimen lately sent to us by Mr. Silas Stearns from Pensacola 

 seems to answer to Holbrook's description, and we have found two simi- 

 lar specimens in the museum at Cambridge, one (No. 438, M.C. Z.) 

 from Pass Christian, Mississippi, the other from Hampton Roads, Vir- 

 ginia. The only differential characters which we have noted are given 

 in the analysis of species. As C. regalis is subject to considerable vari- 

 ation, we have regarded C. tlialassinus as an extreme form or variety 

 rather than as a distinct species. It may, perhaps, be found to inhabit 

 a different depth of water than that which the common Weak-fish fre- 

 quents. 



The following is a description of oiir specimen from Pensacola: Depth, 

 4| in length ; head, 3J ; D. X — I, 24 ; A. II, 11 ; lateral line, 50 ; length, 

 12 inches. 



Body compressed ; not especially elevated ; of abou t the same depth 

 everywhere betwen the ventrals and the vent ; caudal peduncle rather 

 long and stout. 



Head poiuted, subcorneal ; profile straight, scarcely descending; eye 

 rather large, If in snout, 5& in head ; mouth large, oblique ; premaxil- 

 lary anteriorly on a level with the upper margin of the pupil ; maxillary 

 extending beyond the pupil; lower jaw strongly projecting, its tip en- 

 tering the profile. 



Teeth of the lower jaw in two series, anteriorly in a single series; those 

 in front small and subequal ; the inner ones recurved ; those of the side 

 much larger. Teeth of the upper jaw in two series ; those of the outer 

 series scarcely decreasing in size towards the angle ; those of the inner 

 series becoming minute on the sides ; canines moderate, & the diameter 

 of the eye. 



Preopercle with a striated and dentated dermal margin; gill- rakers 

 slender ; those near the angle half the length of the eye. 



Lower pharyngeals weak and long, grooved below; teeth at the angle 

 several times as large as the rest, all more or less recurved ; the ante- 

 rior ones specially so; teeth of the upper pharyngeals unequal. 



First dorsal spine inserted above the end of the first fourth of the 

 ventrals; the spines slender; the third highest, reaching to the ninth 

 spine, 2| in head; second anal spine about twice as large as tbe first, 

 2§ in length of eye; anal rays 2| in head ; pectorals broken; ventrals 



