102 I'ROCEEDIXGS OF THE NATIONAL MUSEUM. voi. xxxi. 



41. ACANTHISTIUS PATACHONICUS (Jenyns). 



MERO. 



Pledropuimt patadionku Jenyns, Zool. Voy. Beagle, Pt. 4, Fish, 1842, ji. 11, off 



mouth Rio de la Plata, coast of Patagonia. 

 Acanthistms patagonicufi, Berg, Anal. Mas. Nac. Buenos Aires, IV (2d ser., I), 



1895, p. 46 (Costa patagonica; Bahia Blanca; Mar del Plata; Montevideo; 



Maldonado). 



Berg- reports this species as abundant in all the places mentioned, 

 and points out marked differences l^etween it and ^1. l/r(silie>isis. 



Eight specimens in our collection from the market at Buenos Aires 

 measure from 7.75 to 19 inches in total length. There is some varia- 

 tion, according to size, as shown in the accompanying table: 



Proportional measurements of Acanthistius patachonicus. 



The specimens were first preserved in formalin and later placed in 

 alcohol, and the colors have become very much faded; but the ground 

 color of the body seems to be g'l'ay, covered with fine reticulations of 

 veiy dark-brown wavy markings; belly plain brownish and gray with- 

 out markings; head the same; fins all plain brownish, but with wavy 

 brown markings at base of spinous dorsal and scaly portions of soft 

 dorsal and anal. 



Family SPARID^. 



42. PAGRUS PAGRUS (Linnaeus). 



Spartis parus Linn.eus, Syst. Nat., 10th ed., 1758, p. 279, southern Europe. — 

 Berg, Anal. Mus. Nac. Buenos Aires, IV (2d ser., I), 1895, p. 49 (]Mar del 

 Plata; Montevideo). 



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

 1890-91, p. 612 (Market of Montevideo). 



Berg says that this species is rather common in Mar del Plata and 

 about Montevideo, and occurs in other localities on the Argentine and 

 Uraguayan coasts. 



He gives vertical fin and scale formulas, as follows: D. XI 12 to XII, 

 11; A. 8; scales 6-53 to .56-13. 



Two specimens in our collection, 12 and 13.37 inches total length, 

 present respectively the following proportions: Head 3.04 and 3.22 in 

 length without caudal; depth 2.55 and 2.68; eye 4.10 and 4.(H> in 

 head: D. XII, 10; A. Ill, 8; scales 7 and 9-56 and 57-14. 



