_Calamus proridens._ The Little-head Porgy. Body oblong and much elevated; head 3-1/4; depth 2-1/3; eye 4; scales 9-58-16; D. XII, 12; A. III, 10; anterior profile steep and straight; mouth moderate, maxillary scarcely reaching front of eye; anterior teeth of outer series slightly longer and more robust than those of the cardiform band; on each side of the upper jaw one of these teeth becomes much enlarged, caninelike, directed obliquely forward and downward, and strongly curved, the upper surface concave; there are usually 7 teeth of the outer series between these two canines; no evident accessory series of molars; dorsal spines slender and high. _Calamus arctifrons._ The Grass Porgy. Body oblong, but little elevated; head 3-1/4; depth 2-2/5; eye 4-1/2; scales 6-48-13; D. XII, 12; A. III, 10; anterior profile unevenly curved, very convex before the eye; head narrow above; dorsal outline not forming a regular arch; a rather sharp angle at nape; preorbital deep; canine teeth, 8 in upper jaw and 10 in lower. THE JOLT-HEAD PORGY (_Calamus bajonado_) This is the largest and most abundant of the porgies. It was described by Bloch, in 1801, who named it _bajonado_, after the Cuban name given by Parra in his "Natural History of Cuba." [Illustration THE JOLT-HEAD PORGY] [_Calamus bajonado_] [Illustration THE LADY-FISH] [_Albula vulpes_] [Illustration THE COBIA] [_Rachycentron canadus_] It is not certain what the name is intended to signify. It may allude to the "bayonet-like," interhæmal bones, or to _bajio_, meaning a "sandbank" or "shoal," in allusion to its habitat. The jolt-head is abundant along the Florida Keys, especially in the vicinity of Key West, where it is one of the commonest market fishes; its range extends to the West Indies. It has a short, deep body, compressed, its depth being half its length; its back is more regularly arched than in the other porgies, or not so humpbacked. The head is large, with a long, pointed snout, and mouth moderate in size; the profile is more regularly curved than in the other porgies. The predominating color is dusky or bluish, with brassy reflections; the upper fins are pale or bluish, more or less mottled with darker shades; the lower fins are plain; the cheeks are coppery in hue.