On the Genera Sanlinella, Harengula, dec. 377 



XXXTV. — A Revision of the Chfpeid Fishes of the Genera 

 iSardiiiella, Hareiio;ula, c&c. B7 0. TatE Regan, M.A. 



(Published by permission of the'Triistees of the British ACuseum.) 



The j^eniis Clupea, as understood by Giintlier, includes a 

 iiutnher of genera which may be arranged in two groups : 

 one of these, characterized by a well-marked median notch in 

 the npper jaw, has been dealt with in a recent paper (xicpra, 

 \). 2U7) ; the other group includes genera without a distinct 

 notch in tiie upper jaw, namely, Clupea, Clapeonella, Sinlina, 

 Sirdinelhij Opiathonenia, ILirenjnla, Lile^ and Ilerinq'ut. 

 Of these I have already published revisions of Clupea and 

 Sardina (' Annals,' (8) xviii. 1916, p. 1, and xix. 1917, p. 2-2(i), 

 anrl I have nothing to add to Berg's synopsis of Clupeonella 

 (llarengu^ Berg, 'Annals,' (8) xi. 1913, p. 480, and Poiss. 

 de I'eau douce de la llussie, p. 30, 1916). The other genera, 

 comprising species that are mostly tropical and stiictly 

 murine, form the subject of the present paper. 



Sabdinella, Val. 1847. 



Cuv. & Val. Hist. Nat. Poiss. xx. p. 263. 

 Clupeonin, Cuv. & V'al. t. c. p. Sio. 



This genus is closely related to Sardina, Antipa (Regan, 

 Ann. &'Mag. Nat. Hist. (8) xviii. 1916, p. 11), from which 

 it differs especially in the absence of radiating grooves on the 

 opercubim and in the structure of the posterior margin of the 

 branchial cliamber, the vertical edge of the cleitlirum being 

 covered by a dermal fold which bears two obtusely pointed 

 projections some distance apart, with a shallow concavity 

 between them. The verfebrse are fewer than in Sardina, 

 numbering 44 in 8, gihbosa, 45 in S. sindensis, and 4G in 

 *S. longiceps and S. madtrensis. 



The majority of the species are tropical, but those of the 

 Eastern Atlantic range into the j\lediterranean ; most of 

 them are of considerable economic value, both as food-fishes 

 and as a source of oil. 



Synopsis of the Species, 



I. Ventral scutes sharply keeled. 



A. Pelvic tius 9-rayed ; a dark spot at edge of operculum. 

 Eye 3| to 4^ iu length of head, which is 3^ to 4 in 

 length of lish ; 110-160 gill-rakers on lower 

 part of anterior arch 1 . aurita, 



Ann, di Mag, N. Hist, Ser. 8. Vol. xix. 2b 



