DESCRIPTION OF FIGURES. 177 



Fig. 75. Ventral view of tail of Ancaris halicoris, after Parona, 1889, p. 760, iig. 2. 



Fig. 76. Tail of male of Jscaris osculata from Plioca grocniavdica, showing cloaca and caudal papillae. 



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

 Fig. 77. Inner view of dorsal lip of Ascaris osculata from I'hoca groenlaiidica ; the intermediate lips 



are not figured, x 90. After Schneider, 1866, pi. I, tig. 13. 

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



tig.l. 

 Fig. 79. Dorsal view of anterior end of Ascaris osculata from Steuorhynchus lejjtonyx, showing : rl., dorsal 



lip; vlL, ventro-lateral lip ; hL, intermediate Jip; 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 osculata from Sienorhynclius leptonyx. After von Linstow, 1892, pi. ii, tig. 14. 

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

 Fig. 82. Ventral view of tail of male of Ascaris osculata from Stenorhyiichus leptonyx, showing lateral 



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

 Fig. 83. Oesophagus of Ascaris osculata from Fhoca vitulina. Zeiss 2/A2. After Jtigerskiold, 1894, 



pi. xxvni, tig. 38. 

 Fig. 84. Male of Jscoris osculata fvotn 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 Eumetopias Stelleri. Zeiss 4/16, stage. Original. 

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



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

 Fig. 89. Ventral view, tail of male of Jscaris osculata (U.S.N.M., No. 2766) Eumetopias Stelleri, showing 



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

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



caudal i)apillae. x 90. After Schneider, 1866, p. 44. 

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



1878, pi. I, tig. 2. 

 Fig. 92. Oesophagus and anterior portion of intestine of Ascaris lobulata, 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;igerski("")ld, 1894, 



pi. xxviu, fig. 37. 

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



Natural size. Original. 

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



Natura,! size. Original. 

 Fig. 95. Anterior end of Uncinaria 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 vrith 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''ui, stage. Original. 

 5947— FT 3 12 



