40 ACANTHOPTERYGII. 



9. GerreS olithostomilS, Goode & Bean, iss-J. 

 Gerres oUthosionuis, Jord. & Everm. 1. c, and 1900, lig. 557. 



Ilah. Atlantic Coast from Florida to Brazil ; Indian liiver, Florida. 



10. Gerres aureolus, Jord. & Gilb., 1882. 



Gerres aureolus, Jord. & Everm. t. c. p. 1375. 

 llah. Pacific Coast of Panama. 



11. Gerres rhombeiis, Cuv. & Val., 1830. 



Gerres rhombeus, Jord. & Everm. t. c. p. 1374. 



Hah. Atlantic Coast from Cuba to Brazil ; Pio Magdalena, Colombia. 



12. Gerres lineatus, Humboldt. 



Gerres Uneatus (part.), Jord. & Everm. t. c. p. 1377. 



Ilah. Pacific Coast of Mexico : freshwater lake at Acapulco. 



13. Gerres axillaris, Gtinth., 1864. 



Gerres linealus (part.), Jord. & Everm. 1. c. 



Ilah. Brackish-water lakes at Chiapam, Guatemala [Salvin). 



14. Gerres patao, Poey, 1868. 



Gerres hradlianus (part.), Jord. & Everm. t. c. p. 1378. 

 Ilal). Atlantic Coast from Cuba to Bahia. 



15. Gerres plumieri, Cuv. & Val., 1830. 



Gerres brusitianus (part.), Jord. & Everm. 1. c. 

 Gerres embrij.r, Jord. & Everm. t. c. p. 1379. 

 Gerres plumieri, Jord. & Everm. 1. c. 



Ilah. Atlantic Coast from Florida to Brazil : 



Indian liiver, Florida ; Lake Yzabal, Guatemala [Salvvn) ; Rio Magdalena, 

 Colombia. 



As in other species of the genus, the dorsal and anal spines become relatively shorter 

 during growth. Thus in specimens of 140 mm. the second dorsal spine is as long as or 

 a little longer than the head, in one of 185 mm. it is ^ the length of the head. Gerre.s 

 e/iiibrijx, Jord. & Starks, is based on examples of 300 mm. with the second dorsal spine 

 -J the length of head. Gerres hrasilianua, Cuv. & Val., was described as in every way 

 similar to G . ylunderi, except for the shorter dorsal spines. 



