354 APPENDIX. 



Page 91 : 



Jordan & Evermann divide the Exoccetidce into four families : 

 Esocidce, Scombresocidce, Hemiramphidoe, and Exocatidm. 



Page 93, read : 



HYPORHAMPHUS GUI, instead of Hemiramphus, . which 

 contains H. balao, etc. 



Our species is : 



224. H. roberti (Cuv. & Val.). See Jordan & Evermann, pp. 

 721, 722. 

 Page 93, read : 



103. EXOCCETUS Linnseus, instead of Halocypselus. 

 The species is : 



227. B. volitans Linnseus, instead of E. or H. evolans, a later 

 name. See Jor. & Everm., part iv. 



Instead of 104. Exocoetus, read : 



104. EXONAUTES Jordan & Evermann ; with species : 



228. E. ezsiliens (Miiller), 



229. E. rondeletii (C. & V.), 



230. E. vinciguerrae (Jor. & Meek.), 



231. E. speculiger (C. & V.) and 



104 b. CYPSBLTJRUS Swainson, with species : 



232. C. heterurus (Rafinesque). 



233. C. furcatus (Le Sueur). 



234. C. gibbifrons (C. & V.). 



The original Exocmtus volilans was the species called Halocyp- 

 selus evolans. 



Page 98 : 



The species of Gasterosteus all seem to merge by degrees into 

 one, G. aculeatus (L.). 



Page 100, add: 



113. KIRTLANDIA Jordan & Evermann, for aa, with serrated 

 scales. 



248. M. gracilis (GUnther) is found with M. heryllina, in the 

 Potomac, and the latter may not be distinct. The name gracilis 

 is the older. 

 Page 103, read: 



Family LI. RACHYCENTRID.a!, instead of Elacatida. 



Also read : 



120. RACHYCENTRON Kaup. 

 258. R. canadus (L.). 



Page 104, read: 



260. TetraptnruB imperator (Bloch & Schneider). 



261. latiopboruB nigricanB (Lacdpfede). 



