44^ Supplement to the A. 0. U. Check-List. [july 



(cf. Stone, Science, N. S., XXVI, No. 666, Oct. 4, 1907, p. 445), 

 making Herodias thus a synonym of Egretta Forster. The earliest 

 available name for the present genus is therefore Casmerodius Gloger. 

 The only North American species is 



196. Casmerodius egretta (Gmelin). 

 Clangula Oken becomes Glaucionetta Stejneger (Proc. U. S. Nat. 

 Mus., VIII, Oct. 9, 1884, p. 409; type by original designation, Anas 

 clangula Linnaeus), since Clangula Oken proves to be a nomen nudum 

 {cf. Committee British Ornithologists' Union, List Brit. Birds, 1915, 

 p. 3S4); Glaucion Kaup to be preoccupied by Glaudon Oken (Mollusca, 

 IS 16); and Bucephala Baird to be invalidated by Bucephalus Baer 

 (Vermes, 1827). The North American forms are: 



151. Glaucionetta clangula americana (Bonaparte). 



152. Glaucionetta islandica (Gmelin). 



Harelda Stephens becomes Clangula Leach (in Ross' Voyage Disc, 

 1819, append., p. xlviii; type by monotypy, Anas hyemalis Linnaeus), 

 as this is the oldest tenable name for the genus. (Cf. Hartert, Hand- 

 List Brit. Birds, 1912, p. 142.) The employment of Clangula Leach 

 in the above sense now proves necessary since it was based exclusively 

 on the Old-squaw, and since Clangula Oken (Isis, I, 1817, col. 1183), 

 along with the other Oken generic names published in the same 

 connection, are considered nomina nuda because not definitely re- 

 ferring to Cuvier's groups. (Cf. Committee British Ornithologists' 

 Union, List Brit. Birds, 1915, p. 384.) The only species of this genus 

 will now stand as 



154. Clangula hyemalis (Linnaeus). 



Scolopacinae is recognized as a subfamily of Scolopacidae, to include 

 Nos. 227 to 230.1 of the A. O. U. Check-List. (Cf. Ridgway, Bull. 

 U. S. Nat. Mus., No. 50, pt. VIII, 1919, pp. 145-146.) 



Macrorhamphus Forster becomes Limnodromus Wied (Beitr. Naturg. 

 Brasil, IV, Abth. 2, 1833, p. 716; type, by monotopy, Scolopax grisea 

 Gmelin), because Macrorhamphus Forster 1817 is preoccupied by 

 Macrorhamphus Fischer 1813, and Limnodromus becomes the earliest 

 available name. (Cf. Mathews, Novit. Zool., XVIII, No. 1, June 17, 

 1911, p. 22.) The North American forms of the genus are: 



231. Limnodromus griseus griseus (Gmelin). 



232. Limnodromus griseus scolopaceus (Say). 

 Eroliinae is recognized as a subfamily of Scolopacidae, to include Nos. 



231 to 252, 260, and 262, of the A. O. U. Check-List (cf. Lowe, Ibis, 

 10th ser., Ill, No. 3, July, 1915, pp. 609-616; Ridgway, Bull. U. S. 

 Nat. Mus., No. 50, pt. VIII, 1919, pp. 146-147); but becomes Canuti- 

 nae, because Canutus [anonymous], not Erolia Vieillot, is the type 

 genus of this subfamily. (Cf. Oberholser, Proc. Biol. Soc. Wash., 

 XXXII, Dec. 31, 1919, p. 200.) 

 Pisobia aurita (Latham) becomes Pisobia acuminata (Horsfield) 

 (Totanus acuminatus Horsfield, Trans. Linn. Soc. Lond., XIII, May, 



