2836 Bulletin 47, United States National Museum. 



Our species of Exonautes are the following : 



1080. EXONAUTES EXSILIENS (Miiller). 



1081. EXONAUTES RONDELETII (Cuvier & Valenciennes). 



1082. EXONAUTES VINCIGUERRJE (Jordan & Meek). 



1083. EXONAUTES SPECCLIGER (Cuvier & Valenciennes). 



1084. EXONAUTES RUFIPINNIS (Cuvier & Valenciennes). 

 To these should be added the following: 



1084(a). EXONAUTES AFFINIS (Giinther). 



Head 4 ; depth 6 ; eye 3 ; snout 3 . D. 11 to 13 ; A. 11 to 13 ; scales 6-50 

 to 52, 35 before dorsal. Interorbital space flat, slightly greater than eye. 

 Pectoral fin extending scarcely beyond dorsal and anal; base of ventral 

 midway between eye and base of caudal, its rays reaching beyond middle 

 of base of anal; dorsal opposite anal, its anterior rays 2$ in head. Pec- 

 toral with an oblique white blotch across its lower half, and with a narrow 

 whitish margin ; ventrals grayish. Cuba? Atlantic; West Africa. (Giin- 

 ther.) Probably distinct from E. speculiger. 

 Exocoetus affini*, GUNTHER, Cat., vi, 288, 1866, Cuba? 



The species of Cypsilurus are the following : 



1086. CYPSILURUS HETERURUS (Rafinesque). 



1086. CYPSILURUS LUTKENI (Jordan & Evermann). 



1087. CYPSILURUS FURCATUS (Mitchill). 



1088. CYPSILURUS NIGRICANS (Bennett). 



1089. CYPSILURUS XENOPTERUS (Gilbert). 



1090. CYPSILURUS LINE AT US (Cuvier & Valenciennes). 



Under this species (p. 739) for Corea (in 3 places) read Gorea. 



1091. CYPSILURUS CYANOPTERUS (Cuvier & Valenciennes). 



This is a good species. The specimens recorded from James Island 

 belong to C. bahiensis. 



1092. CYPSILURUS BAHIENSIS (Ranzani). 



1093. CYPSILURUS CALIFORNICUS (Cooper). 



1094. CYPSILURUS CALLOPTERUS (Giinther). 



1095. CYPSILURUS GIBBIFRONS (Cuvier &. Valenciennes). 



Page 732. In the key, for "jj" read "hh," for "jjj" read "hhh," for 

 " kk" read "ti," for "ii" read "gg," and for "hh" read "ff." 



Page 746. According to the studies of Mr. Rutter and Dr. Gilbert all 

 the forms of Gasterosteus should probably be reduced to a single species 

 (Gasterosteus aculeatus), having 3 or 4 geographic varieties, each running 

 into a number of forms which differ in the degree of armature of the body. 



Page 749. After Gasterosteus bispinosus cuvieri, insert : 



I lOOia). GASTEROSTEUS GLADIUNCULUS, Kendall. 



Head 3;V; depth 3^; D. II-I, 10; A. 1, 8. Head rather long; eye about 

 3 times in head; opercle not striate; body deep, compressed, with 5 lateral 



