352 SNODGRASS AND HELLER 



Numerous specimens taken in the warm water between 4° N. and 

 21° N. and 90° W. and 116° W. Comparatively scarce in the cooler 

 water of the Humboldt current immediately to the south of this region, 

 and none seen about the Galapagos Islands. 



26. EXONAUTES SPECULIGER (Cuvier & Valenciennes). 



Exocceius speculiger Cuvier & Valenciennes, Hist. Nat. Poiss., xix, 93, 



1846. — GuNTHER, Cat., VI, 287, 1866. 

 Exoccvtus volitans, Jordan & Evermann, Fishes North and Mid. Amer. , i, 



734. 1896. 

 Exonautes speculiger, Jordan & Evermann, Fishes North and Mid. Amer,, 



III, Addenda, 2835 ^"d 2836, 1898. 



Range. — Widely spread in the tropics. 



One specimen taken at about 17° 23' N. ; 114° 9' W., southwest 

 from the Revillagigedo Islands. 



27. CYPSILURUS XENOPTERUS (Gilbert). 



ExoccEtus xejtopteriis Gilbert, Proc. U. S. Nat. Mus. 1890, 58, Clarion Island. 



— Jordan & Evermann, Fishes North and Mid. Amer., i, 738, 1896. 

 Exonautes xenopterus, Jordan & McGregor, Rept. U. S. Fish Comm. 1898, 



275 (Clarion Island ; Moro Hermosa, Lower California). 

 Cypsilurus xenopterus, Jordan & Evermann, Fishes North and Mid. Amer., 

 Ill, Addenda, 2836, 1898. 



Range. — Eastern tropical Pacific. 



This species was first obtained by Dr. C. H. Gilbert from the stom- 

 ach of a booby {Sula) at Clarion Island, and later by jSIr, R. C. jSIc- 

 Gregor at the same locality and off Moro Hermosa, Lower California. 



28. CYPSILURUS CYANOPTERUS (Cuvier & Valenciennes.) 



Exoccvtus cyanopterus Cuvier & Valenciennes, Hist. Nat. Poiss., xix, 98, 

 1846, Bahia, Rio de Janeiro. — Gunther, Cat., vi, 294. — Jordan & 

 BoLLMAN, Proc. U. S. Nat. Mus. 1889, 180 (James Island). — Jordan 

 & Evermann, Fishes North and Mid. Amer., i, 739, 1896. 



Exoccetus albidactylus Gill, Proc. Acad. Nat. Sci. Phila. 1863, 167, Carib- 

 bean Sea. 



Cypsilurus cyanopterus, Jordan &« Evermann, Check-list Fishes, 323, 1896. 



— Jordan & Evermann, Fishes North and Mid. Amer., iii. Addenda, 

 2836, 1898. 



Range. — Caribbean Sea, coast of Brazil; Galapagos Islands. 



Taken at James Island by the Albatross (iSS7-'SS). 



Family MUGILID^. 



29. MUGIL CEPHALUS Linnreus. 



Mugil cepltalus Linnaeus, Syst. Nat., Ed. x, 316, 1758, luirope. — Jordan & 

 BoLLMAN, Proc. U. S. Nat. Mus. 1889, 180 (Chatham Island, Hood Is- 

 land). — Jordan & Evermann, Fishes North and Mid. Amer,, i, 811, 

 1896. 



