PROCEEDINGS OF THE NATIONAL MUSEUM. 113 
Var. @. 
. 67. Head with rostellum retracted, x 60. 
. 68. Rostellum of same, x 225. 
‘iv. 69. Hooks of same, X 360. 
ig. 70. Anterior segments, X 22. 
iy. 71. Posterior segments, x 12. 
PiaTE VIII. 
Tenia filum Goetze, from Larus californicus. 
72, Head with rostellum retracted, x 225. 
73. Head and neck, proboscis exserted, X 52. 
74. Proboscis and hooks of same, x 360. 
ig. 75, Hooks of No. 72, x 345. 
. 76. Posterior segments of No. 73, X 52. 
. 77. Cirrus of same, xX 345. 
. 73. Postero-median segments of No. 72, x 56. 
Tenia macrocantha, sp. noy., from Gidemia americanus. 
79. Head with proboscis exserted, x 30. 
. 80. Hooks of same, x 360. 
. 81. Posterior segments of same, x 16. 
32. Last two segments of same, x 45. 
Tenia compressa, sp. nov., from Fuligula vallisneria and Gidemia americana. 
Fig. 83. Head and neck of specimen from Fuligula, x 54. 
‘ ig. 84. Proboscis and rostellum of another from same host, x 225. 
4 ig. 85. Hooks of same, x 345, 
Pg 86. Hooks from another specimen, same host, x 345. 
Fig. 87. Postero-median segments, same host, X 27. 
Fig. 88. Posterior segments, same, X 27. 
Fig. 89. Posterior segments of another, different individual host, x 30, 
_ Fig. 90. Cirrus of No. 58, x 360. 
Fig. 91. Postero-median segments, from Gdemia, x 15, 
Fig. 92. Hooks of same, X 360. 
* Proc. N. M. 92 8 
