516 



BULLETIN" 50, UNITED STATES NATIONAL MUSEUM. 



Adult female.— Wing, 278-295 (286.5); tail, 134-136 (135); ex- 

 posed culmen, 42.5-44 (43.2); tarsus, 20.5-22.5 (21.5); middle toe, 

 19.5-20 (19.7).« 



Middle Atlantic Ocean and contiguous American waters; breeding 

 from coast of Florida, Louisiana, Texas, and Bahamas through West 

 Indies to islands near coast of British Honduras (Curlew Cay ; Saddle 

 Cay; Southern Water Cay), island of Los Hermanos, off Venezuela, 

 island of Fernando Noronha, Ascencion Island, etc.; casual north- 

 ward (after storms at sea) to North Carolina (Fort Macon), New 

 Jersey (Long Beach), New York (Owasco Lake, Sept. 20, 1876; Con- 

 stitution Island, Sept. 13, 1878; Lake Ronkonkoma, Long Island, 

 Sept. 13, 1878; Lake Ontario, near Mexico, Dec.,^ Connecticut 

 (Saybrook, summer, 1876), Rhode Island (Newport, June 8, 1908), 

 Massachusetts (Merrimac River, near Lawrence, Oct. 29, 1876), 

 Vermont (Lake Champlain, Sept., 1876; Rutland, 1876), and Maine 

 (Piscataquis, Oct. 5, 1878) ; wintering from Gulf coast to Brazil and 

 Falkland Islands; casual in western Europe (3 records for British 

 Islands, 1 each for France, Germany, and Italy) and Azores (Santa 

 Maria). 



[Sterna] fuscata Linnaeus, Syst. Nat., ed. 12, i, 1766, 228 (Santo Domingo =Haiti, 

 Greater Antilles). — Gmelin, Syst. Nat., i, pt. ii, 1789, 610. — Latham, Index 

 Orn., ii, 1790, 807. 



a Two specimens. 



Locality. 



MALES. 



Seven adult males from Yucatan (Areas Keys) , 



Three adult males from Tres Marias (2) and Socorro (1) Islands 



(S. /. crissalis) 



One adult male from lat. 11° 20' N., long. 109'' 20' W. (S. /. 



crissalis) 



One adult male from Laysan Island (S. /. oahuensis) 



Two adult males from Gloriosa Island near Madagascar {S. f. 



infuscata) 



FEMALES. 



One adult female from Grenada (He Ronde) 



One adult female from Argentina (Tortugas) 



Five adult females from Tres Marias Islands (5. /. crissalis) . . . 

 One adult female from Galapagos (Chatham Island) (S./. cris- 



One adult female from Laysan Island (S. f. oahuensis). 

 One adult female from Gloriosa Island (S. /. infuscata) 



Wing. 



286.6 



288 



280 

 294 



293 



278 

 295 

 288 



TaU. 



148.9 



147.7 



162 

 191.5 



183 



134 

 136 

 151.2 



271 1 161. 5 

 294 i 210 

 297 I 197 



Ex- 

 posed 



cul- 

 men. 



44.1 

 42 



39.6 

 44 



44.2 



42.5 



44 

 42.1 



41 

 41 

 41.5 



Tarsus. 



23.1 



22 



21.2 



20.5 

 22.5 

 22 



22 

 23 

 22 



Middle 

 toe. 



2a9 



2a5 



19.5 



21 



20 



19.5 



20 



20.8 



20 



21.0 



21 



& George A. Davis, in letter to Professor Baird. 



