114 



CALIFORNIA ACADEMY OF SCIENCES 



specimens is 5-44 or 45-10. The mar<;in of the spinous dorsal varies in color from 

 dusky to l)lnoi<, but wo liavc some small specimens, enllcetiMl hy the Albatross, in 

 wbicb tbe fins may be said to be immaculate. 



Our specimens of tbe young up to 05 mm. in length show lii;lit brown cross- 

 bars on back. One at the nape runs obliquely downward and backward to the upper 

 end of gill-opening; one at the front of the spinous dorsal runs obliquely downward 

 and forward to lateral line, nearly meeting the one at the nape; between these there 

 is a shorter vortical bar, and more posteriorly are several bars running downward and 

 forward, whicli become more or less indefinite along the middle of their lenglli. One 

 or two of these bars are represented by the spots on the upper edge and at the middle 

 of the caudal peduncle. 



Our material from the Atlantic is so meager that we are unable to discuss 

 relationships between E. cnlifortiienfiis, E. hnrengnlus, and E. ineudogula. 



Measurements in Hundredths of Length without Caudal. 



Locality 



Length without caudal ex- 

 pressed in mm 



Head 



Depth 



Eye (insideof adipose eyelid). 



Pectoral 



Second dorsal spine 



Second anal spine 



Caudal 



Ventrals 



Snout 



Number of dorsal rays 



Number of anal rays 



Scales , 



Chatham 

 L, Gala- 

 pagos 



149 

 32 



37 

 10 



34 



19 



9 



27 



17 



1 1 

 IX, 9 

 III, 7 

 5-44-10 



153 

 33 



3S 

 10 



32 



19 



9 



28 



18 



10 



IX, 9 



111,7 



5-44-10 



150 



31 



37 

 10 



32 

 18 



26 

 17 



lOl 



IX, 9 



111,7 



5-45-10 



■56 

 30 

 32 



9 

 32 

 i7i 



81 

 28 

 16 

 loi 



IX, 9 



III, 7 



5-45-10 



211. XystEema cinereum (Walhawni). 



Panama records are by Giinther, 1869, p. 391 (as Gerres squamipinnis) ; and 

 Jordan, 1885, p. 384. 



212. Gerres aureolus Jordan <i- Gilbert. 

 Known only from the type taken by Gilbert at Panama in 1881. 



