﻿REVISION OF GENUS HARENGULA — RIVAS 287 



only; scales; fin rays), 167 (distribution: coast of Mexico only.) — Osburn 

 and Nichols, 1916, p. 149 (common name; method of capture; Pichilinque 

 Bay, Agua Verde Bay, and Carmen Island, Lower California). — Breder, 

 1928, p. 5 (material; Espfritu Santo, Salina Bay in Carmen Island, Arroyo 

 de San Luis, and San Jos(5, Lower California). 

 Harejigula thrissina, Regan, 1917, p. 387 (characters in key; references; descrip- 

 tion; range; material; Jalisco, Mexico). — Jordan, Evermann, and Clark, 

 1930, p. 44 (range).— Storey, 1938, pp. 3, 21, 23, 35, 51 (comments; char- 

 acters; types in part; description; material; Rfo Muleg6, Concepci6n Bay, 

 Lower California, and "West Coast of Mexico"). — Seale, 1940, p. 3 (ma- 

 terial; Tangola-Tangola and Tenacatita, Mexico). — Fowleb, 1944, pp. 358 

 (material; coloration; Acapulco, Mexico), 387 (material; coloration; Maria 

 Madre Island, Tres Marias group, Mexico), 405 (description; coloration; 

 material; Isabel Island, Mexico), 481 (localities, except Panama). 



Jordan and Gilbert (18S2b, p. 353), in their original description, 

 listed U. S. N. M. Nos. 6388, 2524, and 6339 as the types of this 

 species. I have examined these lots with the exception of No. 6339, 

 which I have not been able to locate. No. 6388 consists of three 

 specimens collected by J. Xantus in Cape San Lucas, Lower California. 

 They are in fairly good condition except for broken caudals, and I 

 designate the largest, 102 mm. in length, as the lectotype. The two 

 remaining specimens in this lot, 83 and 85 mm. in length, are para- 

 types. The two specimens now in No. 2524 are Pomolohus pseudo- 

 harengus, an Atlantic species of clupeid that does not occur in the 

 Pacific. 



In H. thrissina, the scale counts (see item 4a of the key) are higher 

 than in any other of the American members of the genus. It re- 

 sembles H. clupeola in proportions, and the scales are thin and glassy 

 as in H. humeralis and H. caUolepis but more adherent, not easily 

 falling off from either fresh or preserved specimens. The tip of the 

 dorsal fin is blackish. 



The usual length of H. thrissina, as calculated from the material 

 at hand, is 76 to 91 mm. The largest specimen examined (B. O. C. 

 No. 1029) measures 112 mm. in length and was collected by the 

 Pawnee, along with several others, in Espiritu Santo Island, Gulf of 

 California (Breder, 1928, p. 5). 



This species is knowTi only from the Gulf of California to Acapulco, 

 Pacific coast of Mexico, though further exploration may increase its 

 known range. SLx lots and 29 specimens were examined in addition 

 to the type specimens. 



4. HARENGULA PERUANA Fowler and Bean 



Sardina 



Figure 39; Plate 3, Figures 3-4 



Sardinella thrissina (not of Jordan and Gilbert, 1882b, p. 353), Kendall and 

 Radcliffe, 1912, p. 80 (Taboguilla Island only). — Meek and Hildebrand, 



