APPENDIX TO CHECK LIST. 133 



Nos. 343, 844. The dark northwest coast forms of duck hawk and 

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

 as follows : — 



343a. PALCO COMMUNIS Gm., 



var. PBALBi Eidg. \ 



Peale's SucIil Ha^vk. 



344a. PAIiCO COLUMBABIUS L., 

 var. sucKXEYi Eidg. 

 Suckley's Pig-eon Bia^vk. 



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

 5 (Iowa). 



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

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

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

 tail. 



• 381b. TETEAO OBSCURTJS Say, 

 var. FULiGiNOSA (Eidg.). 

 Sitkan Dusky Croiise. 



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

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



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

 var. PALUDiciNCTA Eidg. 

 Texas Prairie Hen. 



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

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

 the black pectoral band complete. 



400a. iESGIALITIS MELODUS (Oed) Cab., 

 var. CIEC0MOINCTUS Eidg. 

 lIii»sonrl Piping- Plover. 



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

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



400bis. iEGIALITIS MICRORHYNCHUS Eros. 

 Slender-liillea Plover. 



No. 401. The American form of jX!. eantianus may be considered 



