APPENDIX TCT CHECK LIST. 133 



Nos. 343, 344. The dark northwest coast forms of duck hawk and 

 pigeon hawk respectively have been named (Bull. Ess. Inst., v, 201) 

 as follows : 



343a. FALCO COMMUNIS GM., 



var. PEALEI Ridg. 

 Pealed Duck Hawk. 



344a. PALCO COLUMBABIUS L., 



var. SUCKLEYI Ridg. 

 Buckley's Pig-eon Hawk. 



No. 351c. The authority is HOOPES, Pr. Phila. Acad., 1873, 238, pi. 

 5 (Iowa). 



No. 381. A dark form of Tetrao obscurus, from Sitka, has lately been 

 characterized (Bull. Ess. Inst., v, 199) : it is more like true obscurus 

 than like var. richardsoni, having the broad terminal slate bar of the 

 tail. 



381b. TETRAO OBSCURUS SAY, 



var. FULIGINOSA (Ridg.). 

 Sitkan Dusky Grouse. 



No. 384. A pale form of Cupidonia, from Texas, has lately been 

 characterized (Bull. Ess. Inst., v, 199) : 



384a. CUPIDONIA CUPIDO (L.) BD., 



var. PALLIDICINCTA Ridg. 

 Tex a* Prairie Hen. 



No. 400. A variety of this species is described by Mr. Ridgway, 

 (Am. Nat., viii, 1874, 109), as A. melodus var. circumcinctus, having 

 the black pectoral band complete. 



400a. JEGIALITIS MELODUS (ORD) CAB., 



var. CIRCUMCINCTUS Ridg. 

 Missouri Piping- Plover. 



No. 400bis. A new species of JEJgiaUtis is described from San Fran- 

 cisco by Mr. Ridgway (Am. Nat., viii, 1874, 109). 



400bis. JEGIALITIS MICRORHYNCHUS RIDG. 

 Slender-billed Plover. 



No. 401. The American form of uE. cantianus may be considered 



