ADDENDxV — 92. GERRID.E — GERRES. 935 



To the syuouymy of this species add: 



{GerresgiilaC & V. vi, 464 ; Giiutber, i, 346, ami iv, 255: Z)irtp^er«8,(/M7aPocv, Synopsis 

 Pise. Ciibeiis. o'2'3, is a diiierent species. The types o( Euciiiontoinuti arijentcHS B. & G. 

 from New Jersey, are too younjr to be certaiuly identilied. Numerous specimens col- 

 lected by us iu North and South Carolina belong to (Icrren gitla.) 



Page 584. After Gerres homonijmus read: 

 921 {h). G. ciB»en-CMS (Walb.) J. &G. 



Silvery; back and sides with to 8 bluish vertical bars, about as 

 broatl as the pupil, these exteudiug to opposite lower part of orbit; 

 the bars formed of confluent blotches and rarely obsolete; axil dark; 

 tins with some dark i)oiuts. Body rather elongate, the back somewhat 

 elevated and compressed, the belly nearly straight, with an angle at 

 the breast. Teeth very small; preorbital and preopercle entire; fur- 

 row on top of head for premaxillary processes broad, scaleless, rounded 

 behind. Dorsal spines slender, flexible, the longest f head, half longer 

 than second anal spine. Pectoral slender, rather longer than head. 

 Caudal deeply forked, a little longer than head. Head 'd\; depth 2§. 

 D. IX, 10; A. Ill, 7; scales 5-40-10. L. 18 inches. The largest of 

 our species of the genus. West Indies and both coasts of ^Mexico; 

 north to Florida Keys and Gulf of California. 



(Mugil einereus Walbaum, Artedi Piscinm 1792, 22-^ (after Tiirdiin cincreiis pcJtutti^ 

 Catesby): Gerres aprion C. & V. vi, 4()1, 1830 (not of Giinlher) : Diapienis aprion Poey. 

 Syn. Pise. Cub. 1868, 321: Gerres zebra Miiller & Troschel, Schomburgk Hist. Barba- 

 does, 1848, 668: Gerres zebra Giiuther, i, 343 and iv, 254: Gerres squamipinnis Giinther, 

 i. 349 and iv, 254.) 



The species of Gerres here noticed may be readily separated by the 

 following analysis : 



«. Preopercle seiTate; anal rays III, 8; second anal, and third dorsal spines lonj;: 

 body elevated. (Gei-res.) 

 b. Preorbital serrate; furrow for premaxillary processes broad, naked; body 



striped Phi.mikhi. 



bb. Preorbital entire (Mojarra Poey); furrow for ijfemaxillary processes broad. 



scaled; body not striped Olistiiostoma. 



«rt. Preopercle entire; anal rays III, 7; dorsal and anal spines comparatively low; 

 body little elevated. {Diaj)teriis lltinznni.) 

 c. Premaxillary groove scaled in front, with a naked jtit behind. 

 d. Depth about half length; third dorsal spine little longer than second anal. 



HOMOXY.MUS. 

 dd. Depth about | length; third dor.sal spine about twice length of second 



anal Gcla . 



ce. Premaxillary groove entirely naked. 



e. Premaxillary groove broad; back elevated, the dei)th about '} length; 



body with faint bars Cinkukus. 



ce. Premaxillary groove linear; back scarcely elevated, the dei)th about one- 

 third length; body not barred Hakkngulus. 



