607 



von Siebold's statement regarding the hooks; the species seti- 

 gera accordingly would rest upon this character. Feuereisen 

 (1868, pp. 190-200) described the anatomy of a goose taiieworm, 

 determined as T. fasciata Rud., which possessed 10 hooks an<l 

 is probably identical with von Siebold's T. setigera Frolich. 

 In 1865 and 1868 Krabbe (1869, pp. 289-290) examined 400 geese 

 and found T. lanceolata present in 77 of them, and another 

 tapeworm 9 times vi'hich possessed 40 hooks on the rostellum; 

 this latter worm Krabbe determined as T. setigera. Krabbe 

 also examined specimens from Rudolphi's collection (see Rud., 

 1819, p. 700) collected by Brosche in Dresden, and determined 

 by Rudolphi as T. sinuosa; these worms were "undoubtedly 

 identical with" T. setigera. Lonnberg (1889, p. 8) records this 

 species for Anser segetum (new host) in Kristineberg; he also 

 includes the white-fronted goose (Anser albifrons) among the 

 hosts, but does not state his authority. Railliet (1893, p. 301) 

 placed T. setigera in his genus Drepanidotaenia. Von Linstow 

 (1892B, pp. 50.3-504) states that Dr. O. Schmeil found in Cy- 

 clops brevicaudatus a globular cysticercoid 0.133mm jn diameter, 

 with a thin, long (2.14mni) tail, 10 hooks 39 n, on the rostellum, 

 which von Linstow identifies as the young of T. setigera. No 

 infections were made. The life history as given above is, 

 therefore, theoretical though probable. 



16. TAENIA KRAB13EI Kowalewski, 1SS5 (nee Moniez, 1879). (Sp. dub.) 



(1894, Taenia Krabbei Kowalewski [nomen nudum].) 



[PI. XII, figs. 151-152.-1 



Krabbe (1860, p. 290) states that he once found in the intes- 

 tine of a domesticated goose a tapeworm head with 10 hooks 

 similar in form to those of Drepanidotaenia setigera but much 

 smaller, i. e., 24 // long. He thought that perhaps it belonged 

 to another form, but figured the hooks as "T. setigera?;" the 

 hooks, as well as the head, bore a great resemblance to Drep- 

 anidotaenia tenuirostris. He also found a few heads with 10 

 similar hooks in the domesticated duck; the hooks were 28 fi 

 long. Kowalewski (1894, p. 5), in a paper which I am unable 

 to read becaufe of the language, mentioned this wohm as a 

 new species under the name Taenia Krabb?i. In a second 

 paper (1895, p. .359, Taf. VIII, fig. 27), he gives a short discus- 

 sion of the worm, and figures 2 hooks. In the Gei'man resume 

 (1894, p. 279) of this paper he simply states: ".A. species from the 

 goose >yhich was already found by Krabbe, but not described. 



