BRANNER-AGASSIZ EXPEDITION TO BRAZIL 167 



The lower suborbital bone is a third wider than the one above it, a 

 deep re-entering angle between the two. Such a concavity in the 

 posterior margin of the suborbitals is supposed to characterize a dis- 

 tinct species or subspecies ( O. palomeia) from Lake Maracaibo. It 

 is not probable that this character is of value. In our specimen, none 

 of the suborbitals reach the preopercle. 



The dorsal spines are but four in number and the anterior rays of 

 the soft dorsal and anal are more elevated than in O. saurus^ 

 making the anterior profile of the fins decidedly falcate. The dorsal 

 seems to have been yellow in life with a large black blotch on the 

 anterior rays. The caudal was yellow, and traces of light yellow still 

 persist on the anal fin. 



The depth of the body is 3! in the length (34 in O. saurus of 

 equal length). 



33. Caranx bartholomaei Cuvier & Valenciennes. 

 Maceio. 



34. Caranx hippos (LinnjEus) . 

 Pernambuco. 



35. Caranx latus Agassi z. 

 Maceio. 



36. Vomer spixii (Swainson). 



Maceio. Two specimens similar to those from Jamaica reported 

 on by Jordan and Rutter,' and evidently agreeing with the figure and 

 description by Agassiz and Spix which served as Swainson's basis for 

 the species. 



Our specimens are 210 and 230 mm. long. The head is contained 

 2| times in the total length to base of caudal, the depth li times. 

 The eye is contained 3f times in the head. 



The chord of the curved portion of the lateral line is contained i^ 

 times in the straight portion (not " i^ the straight part," as given by 

 Jordan and Rutter) . The pectoral fins are longer, their tips reaching 

 to or nearly to the middle of the straight part of the lateral line. 

 The origin of the anal fin is slightly behind the front of the second 

 dorsal (well in advance of this point in V. setipinnis). The eye is 

 much nearer the anterior profile of the head than the gill opening in 

 V. setipinnis ; about equidistant between the two in V. spixii. 



37. Chloroscombus chrysurus (Linnajus). 



Stone reef at Mamanguape ; coral reef near Maceio. 



iProc. Acad. Nat. Sci., Phila., 1897, loi. 



