FISHES OF CEARA, BRAZIL JORDAN AND BRANNFR 21 



Of this Species, well described and figured by Woodward, we have 

 one head (No. 25, Rocha Collection), more or less crushed and split 

 through the middle, but showing the long jaws armed with long, 

 sharp, slender, even teeth, each ^ to ^ the diameter of the eye. 

 Maxillary more than half head, extending far behind eye ; subopercle 

 about half size of opercle and nearly f its depth ; the suture hori- 

 zontal, the lower bone with radiating ridges ; orbital bones obscurely 

 shown. 



This head corresponds fairly well to Woodward's figure of the 

 head of Notclops brama, but the postorbital bones are wanting and 

 no scales are preserved. Whether this is the same as the Rhacolepis 

 brama of Agassiz we are not certain. 



The name brama should apparently stand for this species, the name 

 olfcrsi being rather a synonym of buccalis. 



Genus RHACOLEPIS Agassiz 



Phacolcpis Agassiz, Edinburgh Phil. Journ., xxx, p. 83, 1841 ; type, 



Phacolepis buccalis; misprint for Rhacolepis. 

 Rhacolepis Agassiz, Comptes Rendus, xviii, 1844, p. loii (buccalis). 



This genus is very close to Notelops, the only difference evident in 

 our specimens being the subcylindrical form of the body, the more 

 pointed head, and the crenate edges of the scales. According to 

 Woodward, the genus dififers in having the parietals separated by 

 the intervention of the supraoccipital. The lateral line is obsolete, 

 though a few traces of tubes can be seen on the anterior region. 



7. RHACOLEPIS BUCCALIS (Agassiz) 



PivATE VI, Fig. 2 



Spix and Martins, Reise Brasilien, pi. xxii, fig. 5 ; Ceara. 

 Rhacolepis buccalis Agassiz, Edinburgh Phil. Journ., xxx, p. 83; Cre- 

 taceous of Ceara. 

 Rhacolepis buccalis Agassiz, Comptes Rendus, xviii, p. loii, 1844; Agassiz, 

 Poiss. Fossiles, iv, p. 293, 1844; Ceara. 

 Woodward, Proc. Z06I. Soc. London, 1887, p. 539, pi. xlvi, figs. 2-7; 



pi. XLVii, figs. I to 3; Ceara. 

 Woodward, Cat. Fossil Fishes, iv, 1901, p. 30; Ceara. 

 ? Amblypterus olfersi Agassiz, Poissons Fossiles, 11, pt. i, p. 40, 1833; 



Ceara; a fragment said to be unidentifiable. 

 Rhacolepis olfersi Agassiz, Comptes Rendus, xviii, p. 1012, 1844; based 

 expressly on the figure of Spix and Martins. 



Body subcylindrical, a little compressed, more slender than in 

 C alamo pleurus. Scales small, with crenate edges, about 12 above 

 and 12 below lateral line. Lateral line inconspicuous or obsolete, 



