180 PROCEEDINGS OF THE NATIONAL MUSEUM vol. w 



26. Entire body covered with scales, sometimes very small or rudimentary, 

 forming a corselet or not; palatine teeth present. 

 4a. Snout of moderate length, not beaklike; maxillary posteriorly exposed, 

 not concealed by preorbital. 

 5a. Teeth on jaws small, conical, not compressed; gill rakers long and 

 slender, numerous, 20 or more on lower limb of first arch. 

 6a. Body oblong, compressed, not exceptionally robust; pectoral fins of 

 moderate length, always notably shorter than head. 



Thvmnus South 

 66. Body short, slightly compressed, very robust; pectoral fins of extreme 



length, much longer than head Germo ** Jordan 



56. Teeth on jaws rather strong, more or less compressed, sometimes 

 triangular, with sharp cutting edges; gill rakers rather short, fewer 

 than 20 on lower limb of first arch. 

 7a. Vomer toothless; palatine teeth in a single series, similar in size and 

 shape to those on jaws; first dorsal long, with XVIII to XXII 

 spines; scales of pectoral region forming a rather distinct corse- 

 let Sarda Cuvier 



76. Vomer and palatines with bands of granular teeth; first dorsal rathei 

 short, with XIV to XVIII feeble spines; scales not forming 



corselet Scomberomorus LacepMe 



46. Snout extremely long, beaklike, longer than rest of head; maxillary 

 posteriorly concealed by preorbital -.Acanthocybium Gili 



Genus THUNNUS South 



Thunnus South, Encyclopedia metropolitana, vol. 5, p. 620, 1845. (Genotype 

 Scomber thynnus Linnaeus.) (Substitute for Thynnus Cuvier, preoccupied.) 

 (Ref. copied.) 



THUNNUS THYNNUS (Linnaeus) 



Tuna; Albacora o AttJn 



Scomber thynnus Linnaeus, Systema naturae, ed. 10, p. 297, 1758 (Europe). 

 Thunnus thynnus Rohl, Fauna descriptiva de Venezuela, p. 394, fig. 203, 1942 

 (coast of Venezuela). 



Genus SARDA Cuvier 



Sarda Cuvier, Le rfegne animal, ed. 2, vol. 2, p. 199, 1829. (Genotype, Scomber 

 sarda Bloch.) 



SARDA SARDA (Bloch) 



BONITO 



Scomber sarda Bloch, Ichthj'^ologie, ou Histoire naturelle des poissons, vol. 10, 



p. 35, pi. 334, 1797 (Europe). 

 Sarda sarda Rohl, Fauna descriptiva de Venezuela, p. 394, 1942 (off coast of 



Venezuela). 



Genus SCOMBEROMORUS Lacepede 



Scomberomorus Lacepede, Histoire naturelle des poissons, vol. 3, p. 292, 1802. 

 (Genotype, Scomberomorus plumieri 'La.c^p&de = Scomber regalis Bloch). 



" Not yet recorded from Venezuela. 



