122 CHECK LIST OF NORTH AMERICAN BIRDS. 



783. Bissa tridactyla kotzebnii (Bp.) Coues. b — . c 552a. R 658a. (?) 



Kotzebue's Kittiwake. 



784. Rissa brevirostris Brandt. B 674, g75. c 553. R 659. 



Short-billed Kittiwake. 



785. Pagophila ebumea (Gm.) Kanp. b 676, 677. c 550. R 657. 



Ivory Gull. 



786. Chroicocephalus atricilla (L.) Lawr. b 667. c 554. r 673. 



Laughing Gull. 



787. Chroicocephalus franklini (Rich.) Brncb. b 668, ggd. c 555. r 674. 



Franklin's Rosy Gull. 



788. Chroicocephalus Philadelphia (Orel) Lawr. B 670. B 556. R 675. 



Bonaparte's Rosy Gull. 



789. Rhodostethia rosea (Macg.) Brnch. b 678. c 557. R 676. 



Wedge-tailed Gull. 



790. Xema sabinii (Sab.) Leach, b 680. c 558. R 677. 



Fork-tailed Gull. 



791. Xema furcata (Prov. & Des Miirs) Brnch. B 679. C 559. R 678. 



Swallow-tailed Gull. 



792. Sterna anglica Mont, b 68i. c see. r 679. 



Gull-billed Tern; Marsh Tern. 



783. R. t. k6t-ze-bui'-I. To Otto de Kotzebuc, the Eussian navigator. 



784. R. brg-vi-r5s'-tris. Lat. hrcvis, short, and rosin's, pertaining to the hill, rostral ; from 



ivslrum. 



785. Pa-g6'-phi-la 6-bur'-ne-a. Gr. Trdyos, ice, and (piAos, loved. — Lat. ebumea, of ivory, like 



ivorj' (in whiteness or hardness) ; ehur, ivory ; directly from the Sanscrit word for 

 elephant. 



786. Chro-!-c6-ceph'-a-lus a-trl-cil'-la. Gr. xp'«"«'<^s, colored, and Kecpa\-fi, head. This word 



has given great trouble from Eyton's, the founder's, saying it was from KpotKos, there 

 being no such word. Various attempts to derive it from XP"'" or XP"^*; ^^ from XP^^> 

 Xpo6s, color, and to rectify the supposed erroneous orthography, have resulted in 

 kroikocephalus, chrcecocephalus, chroiocephalas, chroocephalus. Wliarton has shown Eyton's 

 original orthography to be correct, lacking only the diajresis over the i, there being 

 actually such an adjective as xp'^"'<^^> "ft given in the common dictionaries. (See 

 Zoologist, March, 1878, p. — .) — Lat. atricilla, black-tailed; only applicable to the 

 young bird. See Motacilla, No. 80. 



787. C. frank'-lm-I. To Sir John Franklin. 



788. C. phil-a-del'-phi-a. To the City of Brotherly-Love. See Gcothhjpis, No. 142. 



789. Rho-do-ste'-thl-a r6s'-6-a. Gr. p6^ov, the rose, and arridos, the breast ; rose-breasted. — 



Lat. roseus, rosy. 



790. X6'-ma sa-bin'-I-i. Xema is a nonsense Avord, invented by Leach : it is sometimes written 



zema. — To Edward Sabine, by his brother. 



791. X. fur-ca'-ta. JjSit.furcatm, forked, furcate, bifurcate, forficate ; furca, a fork. 



792. Ster'-na ang'-ll-ca. Sterna is not classic, having nothing to do with stimius, a starling, or 



with sternum, the breast-bone, or sterna, to strew. Agassiz gives the latter etymon. It is 



