PLOTOSTJS. — EUTROPIUS. 



279 



Plotostis eastanem, Bleek. Nat. Tijdscbr. Ned. lad. ii. 1851, p. 490. 

 FlotosHs arah, Bleek. Atl. Iclitli. ii. p. 98, pi. xcv. fig. 2 (18()2) ; Day, Fi.sh. Ind. 

 p. 483, pi. cxii. fig. 4 (1878). 



Depth of body GJ to 8 times in total length, length of head 4-J to 

 5 times. Snout rounded, feebly projecting beyond mouth, its length 

 equal to interorbital width ; eye supero-lateral, 5 to G times in length of 

 head ; lips papillose ; teeth large. Nasal and inner mandibular barbels 

 I to ^ length of head, maxillary and outer mandibular f to |-. Gill- 

 rakers rather long, closely set, about 20 on lower part of anterior arch. 

 Dorsal I 4-5, 85-100; anal 70-80; spine strong, serrated in front and 



Fig. 229. 



Ploiosus anijuillaris. 

 Indian Ocean (after Day, Fisli. Ind.). g. 



behind, 3^ to ^ length of head. Pectoral about f length of head, with 

 strong but short spine serrated on both sides. Ventral 1^ to 1| times 

 as distant from caudal as from end of snout. Dark brown, usually with 

 two or three bluish-white longitudinal streaks on each side, at least in 

 the young. 



Total length 250 millim. 



Indian Ocean and Western Pacific, as far north as Japan. 



1-2. Yg. Gulf of Suez. \l. MacAndrew, Fs.j. (P.). 



3-5, G. Hgr. k yg. Zanzibar. Sir L. Play fair (P.). 



7. Hgr. Iludriguez. U. Gulli\cr, E>(]. (P.j. 



8. Skel. V 



0. EUTROPIUS. 



Mull. & Trosch. Hor. Ichthyol. iii. p. G (1849) ; Giintli. CVt. Fish. v. p. 52 (18G4); 

 Bouleng. Foiss. Bass. Congo, p. 2(^C, (1901), and YU\\. Nile, p. 30G (1907). 



Body moderately elongate, strongly compressed, the prsecaudal region 

 short. Dorsal fin short, with a spine and 5 or G branched rays ; a very 



