(AHAXCIDAE. 97 



Platystethus cultratus (Hloch & Schneidek). 



GiJNTHER, Cat., 1860, 2, p. 391. 

 Sciaena cidlrata Forster, MS. 

 Cichla cullnila Bloch & Schneider, Syst. Ichth., ISOl, p. .343. 



Plate 2, fig. 3. 



No. 3198, a specimen 9j inches long from Cook Bay, Easter Island. Dorsal 

 VIII-I, 27; anal II-I, 32; head 4 in length; depth 3.12; eye 3.50 in head; 

 snout 3.25; maxillary 2.77; pectoral 1.38; ventral 2.77; longest dorsal spine 

 (fifth) 4.34; scales 6-53 (57)-ll, counted from origin of soft dorsal downward 

 and forward to lateral line there are 8, counted from origin of spinous dorsal 

 downward and backward to lateral line there are 6, below the lateral line, counted 

 downward and forward to anal there are 11; if all the scales are counted in the 

 lateral line there are 57. 



Color dark slaty and brownish above, lighter on the sides, silvery below; 

 longitudinal dusky streaks following the rows of scales, those in axis of body 

 continuing to base of caudal, successively shorter to the one on a line from about 

 the base of pectoral, which one terminates under about the 6th dorsal ray; each 

 row of scales on the sides of abdomen is streaked with white. 



In our specimen the maxillary reaches the anterior margin of eye. 



Decapterus sanctae-helenae (Cuvier & Valenciennes). 



Jordan & Evermann, Bull. 47, U. S. Nat. Mus., 1896, pt. 1, p. 908. 

 Caranx sanctae-helenae Cuv. & Val., Hist. Nat. Poiss., 1833, 9, p. 28 (37). 



One example. No. 3184, 12j inches long from Easter Island. 



Head 3.8 in length; depth about 5; eye 3.27 in head; snout 3.13; pectoral 

 1.38; dorsal VII-I, 30; anal II-l, 26-1; scutes 34. 



Provisionally identified with this species although it differs somewhat from 

 current descriptions. 



Hemicaranx atrimanus (Jordan & Gilbert). 



Jordan & Evermann, Bull. 47, U. S. Nat. Mus., 1896, pt. 1. p. 913. 



Caranx atrimanus Jordan & Gilbert, Bull. U. S. Fish. Comra., 1882, 1, p. 308. 



Three specimens 71-71 inches long from Panama Bay. M. C. Z. 29654 

 (1 specimen). 



These specimens give the following measurements ; — 



