377] 



PSEUDOPHYLLIDEA FROM FISHES— COOPER 



89 



FISTULICOLA PLICATUS (Rudolphi 1819) 



1781 Taenia haeruca 



1790 Echinorhynchus xiphiae 



1803 Echinorhynchus xiphiae 



1809 Echinorhynchus xiphiae 



1816 Echinorhynchus xiphiae 



1819 Bothriocephalus plicatus 



1819 Bothriocephalus truncalus 



1829 Bothriocephalus plicatus 



1839 Bothriocephalus plicatus 



1845 Bothriocephalus plicatus 



1850 Dibothrium plicatum 



1854 Dibothrium plicatum 



1863 Dibothrium plicatum 



1869 Bothriocephalus plicatus 



1871 Dibothrium plicatum 



1878 Bothriocephalus plicatus 



1885 Bothriocephalus plicatus 



1890 Dibothrium plicatum 



1892 Bothriocephalus plicatus 



1896 Bothriotaenia plicata 



1896 Bothriotaenia plicata 



1896 Bothriotaenia plicata 



1898 Dibothrium plicatum 



1898 Bothriocephalus plicatus 



1899 Fistulicola plicatus 



1899 Fistulicola plicatus 



1900 Bothriotaenia plicata 

 1900 Fistulicola plicatus 



1900 Fistulicola plicatus 



1901 Dibothrium plicatum 



1901 Dibothrium plicatum 



1902 Fistulicola plicatus 



1903 Bothriotaenia plicata 



1905 Fistulicola plicata 



1914 Fistulicola plicatus 



Specific diagnosis: With the characters of the genus. Large cestodes with 

 maximum length, breadth and thickness of 250 (about 60 when contracted), 

 20 and 5mm. respectively. Scolex somewhat orbicular, 2mm. long, 1.3 wide 

 and 1.8 thick; present only in young strobilas which are free in the intestine 

 of the host; later it becomes modified as does a considerable portion of the 

 anterior end of the strobila to form a pseudoscolex which is found deeply im- 

 bedded in the wall of the host's rectum or completely piercing it. Segmenta- 

 tion begins immediately behind the scolex or pseudoscolex. First and middle 

 segments very short and broad, with prominent posterior and wavy borders; 

 posterior joints 0.4, 7 and 3mm. in length, breadth and thickness respectively, 

 funnel-shaped with prominent posterior borders which occupy two-thirds 

 or more of the transverse diameter; terminal segments relatively much longer, 

 narrower and conical in shape, their posterior margins very thin and leaf-like. 



