46 



PROCEEDINGS OF THE NATIONAL MUSEUM 



in head; maxillary ending in an elongate triangular point, extending 

 past joint of mandible but not past rear margin of operculum, con- 

 tained 1.1 in head; mandible bluntly pointed, a trifle curved upward at 

 tip, reaching a httle in front of a vertical line at front of nostrils, when 

 mouth is closed; small numerous teeth along margin of both jaws; 

 viUiform teeth on vomer, palatines, and pterygoids; cheek 7.2, postor- 

 bital length of head 5.75, in standard length; gill rakers rather long, 

 flattened and somewhat broadened at tips, with denticles on their 

 inner edges; depressed length of dorsal fin 1 .3 in head, the first branched 

 rays reaching past last ones, when depressed; distal margin of dorsal 

 fin truncate; distal margin of anal somewhat concave; the first anal 

 rays longest; simple ray of pectorals longest; tips of pectoral rays 

 reaching well past the pelvic insertions; pelvics reaching a little more 

 than halfway to anal origin; dorsal fin origin closer to tip of snout 

 than midbase of caudal fin by a Httle more than length of snout; 



Table 4. — Measurements made on certain species of Anchoa and recorded in hun- 

 dredths of the standard length 



Characters 



spinifer 



Gulf of Paria 



argeri' 

 teiis 



L. de 



Mara- 



calbo 



trinitatis 



Colombia 



Venezuela 



131 



Standard length in millimeters 



Length of head 



Greatest depth of body 



Length of snout 



Diameter of eye ..- 



Length of mandible (from tip of chin) 



Length of maxillaries (from tip of snout) 



Greatest width of bony interorbital space 



Postorbital length of head 



Length of cheek 



Longest gill raker 



Length of longest fin ray of: 



Dorsal 



Anal 



Pectoral 



Pelvics 



Caudal 



Shortest caudal fin ray 



Length of base of anal 



Length of base of dorsal 



Distance pelvic insertion to anal origin 



Snout tip to dorsal origin 



Snout tip to anal origin_ 



Snout tip to pectoral insertion 



Snout tip to pelvic insertion 



Length of caudal peduncle 



Least depth of caudal peduncle 



Length of pectoral axillary scale from pectoral inser^ 

 tion to tip of scale 



25.9 

 26.3 



4.04 



5.95 

 19.2 

 24.4 



5.12 

 17.4 

 12.7 



3.05 



22.0 

 14.8 

 21.4 

 9.77 

 23.7 

 11.2 

 37.6 

 11.8 

 17.5 

 44.7 

 56.9 

 26.2 

 42.8 

 12.4 

 10.7 



9.54 



101 



97 



26.7 

 25.5 



4.18 



6.14 

 20.2 

 25.8 



5.74 

 17.4 

 12.9 



4.85 



19.2 

 14.5 

 20.2 

 9.32 



11.2 

 35.7 

 12.3 

 14.6 

 49.7 

 56.4 

 28.2 

 42.6 

 14.1 

 11.4 



11.9 



26.6 

 23.0 



4.12 



6.19 

 20.4 

 25.3 



5.67 

 17.7 

 13.2 



3.82 



17.3 

 12.9 

 14.6 



8.35 

 23.2 



9.80 

 32.1 

 12.8 

 15.6 

 48.9 

 56.7 

 28.7 

 41.9 

 13.7 

 10.9 



11.9 



71.5 



24.0 

 25.4 

 4.90 

 7.40 

 17.1 

 22.4 

 5.87 

 12.9 

 8.80 

 3.64 



16.6 

 9.08 



34.3 

 12.0 

 17.5 

 55.4 

 58.3 

 25.7 

 43.6 

 13.7 

 11.0 



9.09 



65 



26.9 

 25.7 

 6.00 

 8.46 

 18.5 

 24.9 

 7.38 

 14.3 

 9.84 

 3.38 



8.02 



32.0 

 10.9 

 15.7 

 55.7 

 62.0 

 29.2 

 46.2 

 12.6 

 10.3 



10.0 



