514 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
105. CALAMUS PENNA. (Little-mouth Porgy; Sheepshead Porgy.) 
Pagellus penna Cuy. & Val., v1, 209, 1830 (Brazil); Guichenot, in Ramon de la Sagra, 
Hist. Cuba, 82 (Cuba). 
Calamus penna, Guichenot, Revision Pagels, 114 (Brazil, Cuba, Martinique); Jordan 
& Gilbert, Proc. U.S. N. M. 1884, 21 (Key West); and in other papers. 
Pagellus microps Guichenot, Ramon de la Sagra, Hist. Cuba, 188, tab. 3, f. 1 (Havana). 
Calamus microps Guichenot, Revision Pagels, 118 (Cuba); Jordan, Proc. U.S. N.M. 
1886, 537 (examination of type). 
Pagellus humilis Poey, Synopsis, 1868, 308 (Havana). 
Grammateus humilis Poey, Ann. Lye. Nat. Hist. N. Y., 1872, 182; Poey, Enumeratio, 
1875, 56. 
Pagellus milneri Goode & Bean, Proc. U. 8S. N. M. 1879, 134 (Charlotte Harbor, 
Florida); Jordan & Gilbert, Synopsis, 1883, 556. 
Etymology: Penna, a quill or pen. 
he dark spot in the axil is a diagnostic mark of this species. The 
types of milnert and penna are identical. A small specimen in the 
museum at Cambridge, which may be the type of Poey’s Grammateus 
humilis, belongs to this species. This example is 6 inches long, the eye 
nearly 4 in head, the depth 24 in length, and the pectoral as long as 
head. 
The type of Calamus microps Guichenot is in the museum at Paris. 
It agrees with Calamus penna in all respects except the size of the eye, 
which is 44 in head. It is probably not a distinct species. 
Specimens of C. penna are in the museum at Cambridge from Rio 
Janeiro, St. Thomas, Havana, Camaru, and Rio Grande do Sul. 
106. CALAMUS ARCTIFRONS. (Grass Porgy; Shad Porgy.) 
Calamus arctifrons Goode & Bean, Proc. U.S. N. M. 1882, 425 (Pensacola); Jordan & 
Gilbert, Synopsis, 1883, 928 (Pensacola) ; Jordan & Gilbert, Proc. U.S. N.M. 
1884, 23 (Key West); Jordan & Swain., Proc. U. 8. N. M. 1884, 232 (Cedar 
Keys). 
Habitat: Gulf of Mexico, from Pensacola to Key Wes*. 
Etymology: Arctus, contracted; frons, forehead. 
This small porgy is common in the eelgrass about Key West, and 
ranges northward at least to Pensacola. 
107. CALAMUS MEDIUS. 
Grammateus medius Poey, Ann. Lyc. Nat. Hist. N. Y., 1872, 183, pl. vu, f. 4 (Havana) ; 
Poey, Enumeratio, 1875, 56 (Havana). 
Habitat: West Indies. 
Etymology: Medius, medium. 
We refer to this species a specimen from Havana (21838, M. C. Z.), 
15 inches long. The species seems to be allied to C. penna, differing in 
the more elongate form. 
