74 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXI. 



Family CLUPEID.E. 



9. SARDINELLA ARCUATA (Jenyns) . 



Clupea arcuato Jenyns, Zool. Voy. Beagle, Ft. 4, Fish, 1842, p. 134, Bahia Blanca.— 

 PerucxIA, Ann. Mus. Civ. Stor. Nat. Geneva, 2d ser., X (XXX), 1890-91, p. 655 

 ("Canaledella Beagle"). — Berg, Anal. Mus. Nac. Buenos Aires, IV (2d ser., 

 I), 1895, p. 19 (Bahia de Santa Cruz; Bahia Blanca). 



Three specimens in our collection furnish the figures for the fol- 

 lowing table: 



Proportional measureynents of Sardinella arcuata. 



Mouth very oblique; upper outline nearly straight from tip of snout 

 to caudal; ventral outline strongly curved from tip of lower jaw; 

 dorsal origin about halfway between tip of snout and upper base of 

 caudal; ventral insertion in advance of origin of dorsal. 



Color in alcohol, thickly punctated with dusky on back, giving it a 

 bluish-gra}^ appearance; lower parts silvery; middle caudal rays dusky; 

 all other tins pale; tip of lower jaw black; tip of snout with black 

 punctulations. 



10. BREVOORTIA TYRANNUS (Latrobe). 



Clupea tyrannus Latrobe, Trans. Amer. Philos. Soe. Phila., V, 1802, p. 77, Chesa- 

 peake Bay. 

 Clupanodon aureus Agassiz in Spix, Pise. Brasil., 1829, p. 52, pi. xix, "Habitat 



Bahiaj et alibi in ora Brasilije orientale." 

 Alosa j^ectinata Jenyns, Zool. Voy. Beagle, Pt. 4, Fish, p. 135, pi. xxv, 1842, Bahia 



Blanca. 

 Clupea aurea, Perugia, Ann. Mus. Civ. Stor. Nat. Genova, 2d ser., X (XXX), 



1890-91, p. 655 (La Plata e Belgrano). 

 Clupea pectinata, Berg, Anal. Mus. Nac. Buenos Aires, IV (2d ser., I), 1895, p. 17 



(Bahia Blanca; Mar del Plata; Montevideo; Embocodura del Rio de la 



Plata). 

 Brevoortia tyrannus, Berg, Anal. Mus. Nac. Buenos Aires, IV (2tl ser., I), 1895, 



p. 20 (Mar del Plata; Montevideo; Rio de la Plata.) 



Berg records '"'' Brevooi'tla tyra/mtis" tvoxn Montevideo and Rio de 

 la Plata, where he says it sometimes occurs in great abundance, ascend- 

 ing the llio de la Plata as far as Belgrano. lie also lists *•' Clupea ])ec- 

 tinata {J an.) ^^ from Bahia Blanca, Mar del Plata, Montevideo, and 

 Embocodura del Rio de la Plata, saying that it abounds during the 

 winter, but apparently does not ascend the Rio de la Plata beyond salt 

 water. 



