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Genus 38. Degeeriella Neumann. 
1. abrupta Osborn, Bull. Div. Ent., 1896, p. 229, PI. 2, f. c. 
(Collnus virginlanus.) 
2. aetophila Kell. & Chap., New Mallophaga iii, 1899, p. 78, PI. 6, f. 4. 
(Calidris arenaria.) 
1. acuminata Piaget, see Rallicola. 
3. acuta Piaget, Pediculines, 1880, p. 148, PI. 12, f. 6. 
(. Edolius sp. Celebes.) 
4. acutangulata Piaget, Pediculines, 1880, p. 156, PI. 13, f. 5. 
(Graculus religiosa.) 
2. acutifrons Rudow, see Esthiopterum. 
5. acutofasciata Piaget, Pediculines, 1880, p. 172, PI. 14, f. 5. 
(.Piotus melanogaster.) 
3. aeruginosi Leach MS., in Denny, List Brit. An., 1852, p. 16. Nom. 
nud. ( Circus aeruginosas) = D. fusca Nitzsch. 
6. aetherea Giebel, Ins. Epiz., 1874, p. 301. 
(Simorhynchus microcerus.) 
4. affinis Children, App. Back's Land Expedition, 1836, p. 537. 
(' Tetrao saliceti) = D. earnerata Lyonet. 
5. affinis Nitzsch in Giebel, Zeit. f. ges. Nat., xviii, 1861, p. 298. 
(Garraius glandarius) = D. glandarii Denny. 
6. aguiae Gervais, Apteres, iii, 1847, p. 350 = D. fusca Nitzsch. 
(.Falco aguia .) 
7. albescens Piaget, Tijd. v. Ent., xxxiii, 1888, p. 226, PL 8, f. 4. 
(.Sarcorhamphus gryphus.) 
8. albida Rudow, Zeit. f. ges. Nat., xxxv, 1870, p. 466. 
(Lamprocolius nitens.) 
9. alcae Denny, Anoplur. Brit., 1842, p. 137, PI. 9, f. 1. 
(Alca torda.) 
10. alchatae Rudow, Zeit. f. ges. Nat., xxxv, 1870, p. 472. 
(Pterocles alchata, Syrrhaptes paradoxus.) 
11. alexandrina Giebel, Ins. Epiz., 1874, p. 156. 
(Charadrius (Aegialitis) alexandrinus) [49]. 
12. alpha Kellogg, Brooklyn Sci. Bull., ii, 1914, p. 84. 
(Megalestris antarctica.) 
7. ambigua Giebel, Ins. Epiz., 1874, p. 119 = D. magus Nitzsch. 
(Cassicus cristatus.) 
13. amblys Kellogg, New Mallophaga ii, 1896, p. 499, PI. 67, f. 6. 
(Haliaetus leucocephalus.) 
14. americana Kell. & Chap., New Mallophaga iii, 1899, p. 69, PI. 5, f. 9. 
(Colymbus nigricollis.) 
