I 



ai:t. 7 CESTODE PARASITES OF BIRDS — LINTON ' 73 



Fimhriaria falcifonnia, new species 



200, 201, 202. Immature strobiles from Oidcmia di'i/landi; leugths 4.2. 



5.6, and 4.5 mm. 

 203. Scolex; enlavged view of scolex shown in Fig. 204, from CUinyula 



hycmalis; diameter 0.12 mm. 



Plate 14 



Fimhriaria falciform is (continued) 



Fjg. 204. Immature strobile from Clanyula hycmalis; length, excluding yseudo- 

 scolex, 8 mm. 

 20"). Trun.'^verse section of adult proglottis; longer diameter 1.82 mm. 

 200. Transverse section, diagrammatic; made up from about 5 sectious; 

 diameters 1.28 by 0.28 mm. 



207. Section of cirrus and vagina, from transverse section of proglottis; 



diameter of cirrus at base 0.03 mm. 



208. Transverse section of proglottis ; from Oidcmia per.spivillata; longest 



diameter 1.26 n)m, 

 200. Transverse section of proglottis ; longer diameter 1.22 mm. 



210. Dorsal view of proglottides, whole mount ; breadth 1.20 mm. 



211. Transver.so section of ripe proglottis; longer diameter 1.05 mm. 



212. Section of cirrus-bulb and vagina, from transverse section of pro- 



glottis ; length of cirrus-pouch 0.17 mm. 



213. Ova in uterus ; camera lucida drawing, Zeiss 2/D. 



Plate 15 



Di,li,loi)osthe hievis (Bloch, 1782), Jacobi, 1896, from Marilu americana 



Fio. 214. Adult proglottides ; breadth 1.08 mm. 

 215. Ripe proglottides ; bi'eadth 2.78 mm. 

 210. Adult proglottis ; length 1 mm. 



217. Adult proglottis, posterior to the one shown in fig. 216; breadth 

 1.68 mm. 



218. Ripe proglottis ; breadth 3.92 mm. 



219. Transverse section of ripe proglottis ; greater diameter 2.68 mm. 



220. Cirrus, optical section, from whole mount ; diameter of cirrus 0.066 mm. 



221. Spines on cirrus; length 0.004 mm. 

 10582—26 6 



O 



