110 



BULLETIN 69, UNITED STATES NATIONAL MUSEUM. 



Spatula clypeata (Linnaeus). 

 Hymenolepis anatina, p. 91. 



echinocotyle, p. 92. 



gracilis, p. 93. 



octacantha, p. 95. 

 Diploposthe Ixvis, p. 101. 

 Fimbriaria fasciolaris , p. 105. 

 Nettion crecca (Linnaeus). 



Hymenolepis fragilis, p. 93: 



gracilis, p. 93. 



megalops, p. 94. 



octacantha, p. 95. 

 Diorchis acuminata, p. 42. 

 Aploparaksis furcigera, p. 100. 

 Diploposthe Isevis, p. 101. 

 Fimbriaria fasciolaris , p. 105. 

 * Dafila acuta (Linnaeus). 



Hymenolepis anatina, p. 91. 



collaris, p. 92. 



*megalops, p. 94. 



octacantha, p. 95. 

 Mareca penelope (Linnaeus). 

 Hymenolepis collaris, p. 92. 



coronula, p. 92. 



fallax, p. 92. 



fasciculata, p. 93. 



gracilis, p. 93. 

 Diorchis acuminata, p. 42. 

 Fimbriaria fasciolaris, p. 105. 

 Chaulelasmus streperus (Linnaeus). 

 Hymenolepis anatina, p. 91. 



fragilis, p. 93. 



gracilis, p. 93. 



octacantha, p. 95. 



teresoides, p. 97. 

 Diorchis acuminata, p. 42. 

 Diploposthe Isevis, p. 101. 

 Anas rubripes Brewster. 



Hymenolepis lanceolata, p. 94. 

 Diploposthe Isevis, p. 101. 

 Anas platyrhynchos Linnaeus. 

 Hymenolepis abortiva, p. 90. 



anatina, p. 91. 



collaris, p. 92. 



coronula, p. 92. 



gracilis, p. 93. 



octacantha, p. 95. 



trifolium, p. 97. 



Anas platyrhynchos Linnaeus — Cont'd. 

 Aploparaksis furcigera, p. 100. 

 Diploposthe Isevis, p. 101. 

 Fimbriaria fasciolaris, p. 105. 



plana, p. 105. 

 Tsenia conica, p. lOG. 

 Anas platyrhynchos domestica. 

 Davainea anatina, p. 67. 

 Hymenolepis anatina, p. 91. 

 collaris, p. 92. 

 coronula, p. 92. 

 gracilis, p. 93. 

 lanceolata, p. 94. 

 megalops, p. 94. 

 parvula, p. 95. 

 sagitta, p. 96. 

 tenuirostris, p. 97. 

 venusta, p. 97. 

 Echinocotyle rosseteri, p. 98. 

 Diploposthe Ixvis, p. 101. 

 Fimbriaria fasciolaris, p. 105. 

 Dendrocygna autumnalis (Linnaeus). 



Lateriporus biuterinus, p. 73. 

 Branta berniclaa (Linnaeus). 



Hymenolepis lanceolata, p. 94. 

 setigera, p. 96. 

 Branta canadensis (Linnaeus). 



Diploposthe Ixvis, p. 101. 

 Branta leucopsis (Bechstein). 



Hymenolepis longivaginata, p. 94. 

 setigera, p. 96. 

 Anser anser 6 (Linnaeus). 



Hymenolepis collaris, p. 92. 

 coronula, p. 92. 

 creplini, p. 92. 

 fasciculata, p. 93. 

 lanceolata, p. 94. 

 setigera, p. 96. 

 Anser anser domesticus. 



Hymenolepis collaris, p. 92. 



fasciculata, p. 93. 

 gracilis, p. 93. 

 lanceolata, p. 94. 

 tenuirostris, p. 97. 

 Txnia conscripta, p. 100. 

 Fimbriaria fasciolaris, p. 105. 

 Anser fabalis (Latham). 



Hymenolepis setigera, p. 96. 



oThe typical form occurs only in the Old World; the North American form is B. 

 bernicla glaucogastra (Brehm). 



b In its natural state this species occurs only in the Old World, but is domesticated 

 in the United States. 



