610 



border being much narrower than the posterior border; pos- 

 terior s<»g-ments almost as long as broad. Genital pores ir- 

 regularly alternate. Penis thick, covered with few spines. 

 HookP or embryo 12 (i to 17 H (See also diagnosis given below, 

 p. 611.) 



Development: Acording to Grassi «& Rovelli the cysticercoid 

 develops in the ordinary house fly. 



Host: Chickens (Gallus domesticus); migratory quail (Cotur- 

 nix coturnix); ? pheasants (Phasianus colchicus); mallard 

 (Anas boschas); tame duck (Anas boschas dom.); ? crowned 

 pigeon (GouTa sip.); ? domesticated pigeon (Columba livia dom.); 

 sparrow (Fringilla domestica). 



Geographical distribution: France, Italy, Ireland, Zealand 

 (Denmark) (Krabbe), Pomerania (Creplin), and Saxony (Kuch- 

 enmeister). No epidemics. 



The earlier decriptions of Dr. infundibulif<wmis are 

 exceedingly unsatisfactory, and in many cases it is 

 impossible to recognize what species an autlior had 

 before him when he determined it as infundibulifonnis. 



Krabbe (1869, pp. 339-341) examined Rudolphi's (1810) speci- 

 mens and determined the forms from chickens as "undoubtedly 

 identical" with specimens which he collected in Zealand, and 

 with specimens from Creplin's and Kuchenmeister's collections. 

 Rudolphi's (1810, p. 124) specimens from Otis tarda, however, 

 Krabbe determined as different from the specimens from chick- 

 ens. 



This seems to be the earliest exact reference to this species, 

 which, therefore, rests upon Krabbe's (1869) study of the mater- 

 ial which Rudolphi (1810, pp. 123-126) determined as Goeze (1782, 

 pp. 386-390) Taenia infundibuliformis. Unless original speci- 

 mens of authors before Rudolphi can be studied again, and un- 

 less it can be shown by this means that Rudolphi's (1810) speci- 

 mens were not really identical wnth Goeze's infundibuliformis, 

 this specific name may at present be applied to the parasites 

 as determined by Krabbe. It is useless to revert to the names 

 prior to infundibuliformis, 1782, unless the originals upon which 

 those names were based can be restudied. Bellingham (1844, 

 p. 319) records this species for Anas boschas, A. boschas dom., 

 and Fringilla domestica. The form which Dujardin (1845, p. 

 586) determined as infundibuliformis is referred to Davainea 

 casticillup. Krabbe found this worm (Dr. inf.) in 26 out of 200 

 chickens in the region of Copenhagen. Magnin (1881 .'\. pp. 33- 



