532 TYPES OF FISHES IN PARIS MUSEUM. 



Different from T. cayennensis, having the more elongate form of T. 

 rhodopufi. Fins low, but higlier than in T. cai/enneiisis, the dorsal lobe 

 black, its length about half head. Snout low, bluntish at tip. Depth 

 2^ in length. D. 28, A. 27. A valid species, apparently distinguished 

 by the large number of fin-rays. It may stand as Trachinotus pa 



ITENSIS. 



22. Seriola rivoliana. (Cuv. & Val., ix,207, 1833). 



In fair condition, .25 '" long; from the Greek Archipelago. 



Form elliptical, compressed, the nape not very sharp; caudal keel 

 weak. Snout blunt, compressed, not conical. Head a little longer than 

 deep, 34 in length; depth, S^V. Maxillary reaching to near middle of 

 pupil, 2| in head; snout 3 in head. Dorsal lobe, 4| in length of body, 

 If in depth, If in length of head, 2| in base of tin. D. 1, 29, A. 1, 20. 

 A dark baud from eye to soft dorsal; the body otherwise plain. 



This agrees almost perfectly with a specimen about a foot in length 

 from Pensacola. There is no doubt, I think, of the identity of Seriola ■ 

 falcata^ bonaricnsis, and rivoliana. Unless, as is probable, Seriola fas- ' 

 data (Bloch) is the young of the same species, it may stand as Seriola 



lllVOLIANA. 



23. Serranus undulosus. (Cuv. «fcVal., ii, 295, 1823). 

 Small specimens (.08 '^'),m poor condition. 

 Brazil: Delalande. 



These have many gill-rakers, large scales, the preopercle with salient 

 angle, and the caudal subtruncate. They belong to the species called 

 by us Mycteroperca scirenga. 



24. Serranus niveatus. 



A specimen a foot long (not type), collected at Rio Janeiro by Jobert. 



This agrees with the description of Jordan & Swain (Proc. U. S. Nat. 

 Mus., 1884, 386) except iu color. There is no blotch on back of tail. 

 The soft parts of the vertical fins are largely dusky with narrow pale, 

 edge. Moustache on maxillary very distinct; body with irregularly 

 scattered pearly spots; breast plain. This specimen probably repre- 

 sents the transition from the young {niveatus) to the adult {Jlavolimhatus). 



25. Centropristes atrobranchus. (Cuv. & Val., iii, 45, 1829.) 

 Brazil: Delalande. 



Allied to Serranus phwbe, but well separated by the color. A large 

 inky black blotch on inside of opercle, just behind the pseudobranchiae 

 and parallel with them, extending also on membranes of shoulder-girdle; 

 about six dark vertical bands on sides, the second extending as a jet- 

 bliick blotch on the spinous dorsal from the fourth to the ninth spine. 

 Base of soft dorsal dark; upper part pale, as is also the anal and caudal. 



Preorbital and maxillary narrow, the maxillary 2| in head. Teeth : 

 small; eye large, 3 in head, longer tlian the short snout, which is 4J iu ] 

 head.. Head, 3 in length; depth, 3. Dorsal spines rather high, not 

 filamentous; solt dorsal not scaly; a notch between spinous and soft 



