SYNOPSIS. 389 



C. 20 : Caeca, 120. Upper jaw with about six teeth, 

 those on the tongue shorter and more numerous ; scales 

 large and deciduous ; colour of back and sides dusky blue ; 

 belly dirty white ; lower portion of the fins dark bluish- 

 grey ; irides silvery, pupil blue. Parnell, Ann. of Nat. 

 Hist., L 16L C. clupioides, Lo.cepe.de., Hist. Nat. des 

 Poiss. 



Sp. 137. C. Pdlan. The Pollan. Length of the head rela- 

 tive to that of the body as one to three and a half ; depth 

 of body equal to the length of the head ; jaws equal, with 

 a few teeth, tongue with many teeth ; lateral line at first 

 curved downwards, then straight ; third ray of pectorals 

 longest. Fin-rays, D. 14 : P. 16 : V. 12 : A. 13 : C 19. 

 Colour of the upper portion of the body dark blue ; 

 of the under side, silvery white ; dorsal, anal, and caudal 

 fins tinged with black towards the extremities ; pectorals 

 and ventrals clear and transparent, with the extremities 

 dotted with black ; pupil of the eye black. Thompson, 

 Yarr. Brit. Fish., ii. p. 156. 



GEN. LXIX. SCOPELUS. Body long and slender; first dor- 

 sal placed far back, over the space between the ventral and 

 anal fins ; adipose fin obsolete. 



Sp. 138. S. Humboldtii. Argentine. Head short ; depth of 

 the body to the whole length as one to five and a half; 

 operculum very large, preoperculum small : colour of the 

 sides silvery white, with a very resplendent lustre ; back 

 bluish black; lower edge of the belly steel-blue ; on each 

 side of the belly there is a continuous row of rounded 

 silvery dots, and above this another row extending back- 

 wards rather beyond the middle of the body. Cuv. Reg. 

 Ar..\ Yarr. Brit. Fish., ii. p. 161. Serpes Humboldtii, 

 Risso, Ich., p. 358, tab. x. f. 38. Argentina sphyrsena, 

 Argentine, Penn. Brit. ZooL, iii. p. 432, pi. 76. 

 FAM. XVII. Clupeidce. Body covered with scales; one dor- 

 sal, no adipose fin; mouth with few teeth, sometimes with none; 

 abdomen compressed, carinated t and generatty serrated on the 

 wider edge. 



