70 CALIFOKNIA ACADEMY OF SCIENCES 



Family TRICHIURID^. 



129. Trichiurus lepturus Linnaus. 

 Recorded from Panama by Jordan and Bollman, 1889, p. 180. 



Family NEMATISTIID^. 



130. Nematistius pectoralis Gill. 



Pi'obably rare as far south as Panama; only three or four seen. 



The following measurements are from a specimen 30 cm. in length. 



Head 3|- in length; depth 3!. Eye 5 in head; snout 3^; maxillary 2j\; 

 interorbital (bone) 3|. Dorsal VIII-I, 26; anal T, IG. Gill-rakers 3 + 9, the 

 longest two-thirds the diameter of the eye. 



Family CARANGID^. 



131. Oligoplites saurus (Block d- Schneider). 



Not uncommon in the market, though much less abundant than 0. rnundus. 



The top of head and nape are smooth and without conspicuous pores in saimis 

 and there is no membrane connecting the anterior branchiostegal rays of the two 

 sides. Our material shows that no reliable character can be drawn from the com- 

 parative size of the lowest suborbital bone and the next above. In saurus the lowest 

 suborbital seems constantly narrower than the one above it, but they vary greatly in 

 size, sometimes differing on opjiosite sides of the same specimen. Larger specimens 

 have proportionately deejDer bodies, so this character also must be used with caution. 



We have compared our material with sjiecimens from the Atlantic, and can 

 appreciate no difference whatever. 



