2o8 Memoir Sears Foundation for Marine Research 



AnchovieUa eurystole (Swain and Meek) 1884 



Silver Anchovy 



Figure 44 



Study Material. At least 29 specimens, 55— 130mm, from: Woods Hole and 

 Menemsha Bight, Massachusetts; Noank, Connecticut; Long Island, New York; 

 Brigantine Bay, New Jersey; and Beaufort, North Carolina. 



Distinctive Characters. A. estauquae is the nearest relative of this species. The rela- 

 tionship is shown in the account of that species (p. 2 1 1). 



Figure 44. AnchovieUa eurystole, 75 mm TL, from Woods Hole, Massachusetts, USNM 77778. Drawn by 

 Louella E. Cable. 



Description. Proportional dimensions in per cent of standard length, and counts, 

 based on Study Material, specimens 55—130 mm. 



Body: depth 1 5.4-1 9. 

 Head: length 25-28.5. 

 Snout: length 3.85-5.0. 

 Eye: diameter 5.7—7.0. 

 Postorbital: distance 1 3.8-1 5.5. 

 Maxillary: length 1 5.8-1 7.8. 

 Mandible: length i 5-1 8.5. 

 Anal fin: length of base 12.5— 16. 



Pectoral fin: length 1 2.5-1 3.7. 



Scales: ca. 40—45. 



Gill rakers: 24—28 + 27—33 (most fre- 

 quently 25 or 26 + 28—30). 



Fin rays: dorsal 13—16; anal 15—18 

 (rarely 19); pectoral 15 or 16. 



Vertebrae: 43-45 (3 specimens). 



Body slender, not strongly compressed, its depth ^.2^—6.^ in SL. Head 3.5—4.0, 

 its depth equal to length of postorbital part of head. Snout projecting about half of its 

 length beyond mandible, only a little shorter than eye in large examples, 4.75—6.5 

 in head. Eye 3.75—4.5 in head, 2.1—2.5 ''^ postorbital length of head. Postorbital 

 part of head 1.6— 1.8 in head. Maxillary rather narrow, rounded distally, extending 

 beyond orbit by a distance equal to about 1.3 diameter of eye, failing to reach joint of 

 mandible by about half of diameter of pupil, 1.5— 1.7 in head. Mandible 1.45— 1.75. 

 Cheek only a little shorter than snout and eye, its posterior angle about 45°. Gill 

 RAKERS about 75 "/o of length of eye, not broad or close-set, with moderate serrations 

 on inner edge. 



Dorsal fin low anteriorly, the longest rays failing to reach tip of last ray if de- 



