DESCRIPTION OF FIGURES. 177 



Fig, 75. Ventral view of tail of A acaris halicoris, after Parona, 1889, p. 760, fig. 2. 



Fig. 76. Tail of male oiAscaris osoulata from Phoca groenlandica, showing cloaca and caudal papillae. 



Ventral view, x 90. After Schneider, 1866, p. 44. 

 Fig. 77. Inner view of dorsal lip of Aaearis osoulata from Phoca groenlandioa ; the intermediate lips 



are not figured, x 90. After Schneider, 1866, pi. i, fig. 13. 

 Fig. 78. Dorsal lip of Ascaris osoulata, showing intermediate lips, x 100. After Krabbe, 1878, pi. i, 



fig.l. 

 Fig. 79. Dorsal view of anterior end of Ascaris osculata from Stenorhynchua leptonyx, showing : rl., doi^sal 



lip; vll., ventro-lateral lip ; jiZ., intermediate lip ; the folds of the cuticle near the lips are 



visible. After von Linstow, 1892, pi. Ii, fig 11. 

 Fig. 80. Transverse section of lips near the base, showing the relative position of lips and intermediate 



lips of Ascaris osoulata from Stenorhynchus leptonyx. After vou Linstow, 1892, pi. ii, fig. 14. 

 Fig. 81. Transverse section of same near the apex. After von Linstow, 1892, pi. ii, fig. 15. 

 Fig. 82. Ventral view of tail of male of AacaHs osculata from Stenorhynchus leptonyx, showing lateral 



caudal alae, caudal papillae, and two spicules. After von Linstow, 1892, pi. ii, fig. 16. 

 Fig. 83. Oesophagus of Ascaris osculata from Phoca vitulina. Zeiss 2/Aj. After Jitgerskiold, 1894, 



pi. XXVIII, fig. 38. I 



Fig. 84. Male of Aaearis osculata fiom. Eumetopias Stelleri. Natural size. Original. 

 Fig. 85. Female Ascaris osculata from Eumetopias Stelleri. Natural size. Original. 

 Figs. 86 and 87. Dorsal (fig. 86) and ventral (fig. 87) views of anterior extremity of female Ascaris 



osculata (U.S.N. M., No. 2767) from Mumetopias Stelleri. Zeiss 4/16, stage. Original. 

 Fig. 88. Margin of anterior extremity of Ascaris osculata from Eumetopias Stelleri, to show the peculiar 



cutlcular folds. Zeiss 4/8, stage. Original. 

 Fig. 89. Ventral view, tail of male of Aacaria oaculata (U.S.N.M., No. 2766) Eumetopiaa Stelleri, showing 



narrow lateral alae,- caudal papillae, and cloaca. Original. 

 Fig. 90. Ventral view, tail of male of Ascaris loiulata from Platanista gangetica, showing cloaca and 



caudal papillae, x 90. ' After Schneider, 1866, p. 44. 

 Fig. 91. Dorsal lip, inner surface, of Ascaris lobulata, from Platanista gangetica. x 100. Alter Krabbe, 



1878, pi. I, fig. 2. 

 Fig. 92. Oesophagus and anterior portion of intestine of Ascaris lohulata, showing the long anterior 



portion of the oesophagus, the short posterior portion with oesophageal caecum, and the 



intestine with intestinal caecum. Zeiss 2/A2, extended tube. After j;i.gerski(ild, 1894, 



pi. XXVIII, fig. 37. 

 Fig. 93. Adult male TJnoinaria sp. from the intestine of an Alaskan fur-seal pup, U.S.N.M., No. 2815. 



Natural size. Original. 

 Fig. 94. Adult female Vncinaria sp. from the intestine of an Alaskan fur-seal pup, U.S.N.M., No. 2815. 



Natural size. Original. 

 Fig. 95. Anterior end of Unoinaria sp., U.S.N.M., No. 2815, showing the mouth, buccal capsule, and 



oesophagus. Zeiss 4/16, stage. Original. > 



Fig. 96. Dorsal view of caudal extremity of fig. 93, showing the bursa with its rays, and the two 



spicules. Zeiss 4/8, stage. Original. 

 Fig. 97. Bothriocephalus sp., U.S.N.M., No. 2768, from the intestine of the Alaskan fur seal. Natural 



size. Original. 

 Figs. 98-100. Head of same, enlarged. Zeiss 4/a*io, stage. Original. 

 5947— PT 3 12 



