610 



border being much narrower than the posterior border; pos- 

 terior seg-nients almost as long as broad. Genital pores Ir- 

 regularly alternate. Penis thick, covered with few spines. 

 Hooks of embryo 12 /* to 17 /< (See also diagnosis given below, 

 p. 611.) 



Development: Acoi-ding to Grassi & Rovclli the cysticercoid 

 develops In the ordinary house fly. 



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

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

 (.\nas boschas): tame duck (Anas boschas dom.); ? crowned 

 pigeon (GouTa sip.); ? domesticated pigeon (Columba 11 via dom.); 

 sparrow (Frlngllla domestlca). 



Geographical distribution: France, Italy. Ireland, Zealajid 

 (Denmark) (Krabbe), Pomerania (rrepIinV aiul Saxony (Kuch- 

 enmeistcr). No epidemics. 



The earlier decriptions of Dr. infundibuliformis are 

 exceedingly unsatisfactory, and in many cases it is 

 impossible to recognize what species an author had 

 before him when he determined it as infundibulifoinnis. 



Krabhe (1869, pp. 339-;Ml) examined Rudolphi's (ISIO) speci- 

 mens and determined the forms from chickens as "undoubtedly 

 identical" with specimens which he collected in Zealand, and 

 with specimens from Creplln's and Kuchenmeisters collections. 

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

 Krabbe determlnedi as different from the specimens from chick- 

 ens. 



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

 which, therefore, rests upon Krahbe's (1S69) study of the mater- 

 ial which Rudolphl (ISIO, pp. 123-126) determined as Goeze (17S2, 

 pp. 3S6-390) Taenia infundibuliformis. Unless original speci- 

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

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

 mens were not really Identical with 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. 17S2. unless the originals upon -which 

 those names were based can be Testudled. Bellingham (1844. 

 p. S19) records this species for Anas boschas. A. boschas dom.. 

 and Frin.gilla domestlca. The form which Dujardin (1S45. p. 

 .">S6> determined as Infundibuliformis is i-eferred to Davalnea 

 casticllhis. Krabbe found this worm (Dr. Inf.t In 26 out of 200 

 chickens in the region of Copenhagen. Magnin flSSlA, pp. 33- 



