16 PKOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



In all other characteristics it agrees with older examples of the present 

 species, and we refer it here Mith little doubt. The colors are as de- 

 scribed above, and the eye is small, 3J in head. It is probable that 

 the antrorse canine of the upper jaw is not developed in very young 

 specimens. We find it perfect, though small, in one of 8 inches. In 

 adults it becomes very large and conspicuous. 



This species is very abundant in the channels among the Keys about 

 Key West, and is taken in great numbers by the hook and line fisher- 

 men. It is known to them as the Little-head Porgy. In life it is a very 

 brightly colored fish, but at death its colors change and fade very rap- 

 idly. This change of hue is in this species as striking as in any known 

 to us, and far greater than that of the dying dolphin. 



This species is also constantly found in the Havana market, where it 

 is known as Fez de Pluma. Neither at Havana nor at Key West is 

 it as common as Calamus hajonado, but in both markets it exceeds in 

 abundance all the remaining species combined. 



Synonymy. — Guich6not's description of Calamus pennatula must have 

 been based upon a speciuien of this species as he mentions the char- 

 acteristic canines directed forwards in the upper jaw, and the horizon- 

 tal blue stripes on the preorbital. The depth assigned by him (3 in 

 total length) is too small, but this is probably a slip of the i^en, inas- 

 much as he states that the height is greater in pennatula than in any 

 other species of the genus except calamus. 



Calamus megacephalus Poey, I. c., includes characteristics ofbothcaZa- 

 Qnus and pennatula. The characters drawn from the dentition are en- 

 tirely those of pennatula, while the color and general description un- 

 doubtedly refer to calamus; the life-color being given in detail and very 

 accurately. 



2. Calamus calamus (Cuv. and Val.) Jor. and Gilb. — Saucer-eye Porgy. 



Fagellus calamus Cuvier and Valenciennes, Hist. Nat. Poiss. VI, 1830, 206, 



pi. 152. (Martinique: San Domingo.) 

 Chrysophrys calamus Giintlier, Cat. Fish. Brit. Mus. I, 487. (Bahia; Trinidad; 



Cuba; Jamaica; two or more species evidently confounded.) 

 Calamus megacephalus Swainson, Nat. Hist. Fish., &c., II, 1839, 222 (name 



only, alter Cuv. and Val. ) : Guich^not, Revision du Genre des Pagels in 



M6m. Soc. Imp. Nat. Cherbourg, XIV, 112 (description from C. and V. 



with a few verbal changes). 

 '^Fagellus orbitarius Poey, Memorias Cuba, II, 1860, 201. (Havana.) 

 'i Spar us orbitarius Poey, Syn. Pise. Cubens. 1888, 308. (Havana.) 

 ^Calamus orbitarius Poey, Ann. Lye. Nat. Hist. N. ¥., 1872, 179, PL VI, f. 2 



(Havana) : Guich€uot, R6v. du Genre des Pagels, 123 (name only). 

 ^Calamus macrops Jordan and Gilbert, Syn. Fish. N. A., 1883, 927. (Young, 



Garden Key, Florida.) 



Head, 3^; depth, 1^ to 2^ (2f in total). D. XII, 12 (XIII, 11) ; A. 

 Ill, 10, or III, 11. Scales 9-54-16. 



Body elevated more than in any other known species of this genus, 

 the depth in adults being slightly more than^ half length of body. 

 The anterior jirofile is less steep than in pennatula, the outline of snout 



