U IIKKI'ANIDOTAENIA SINUOSA lZ«l»r. ISlW KhIIIIpI. 18S3, 

 (17S:', Tat-niu oolUiii uisro HliK-h— viile Kuil., ISUI. Us:. T. iiiluii- 

 dlbullforinis (Anserum) Goeze — vide Dies., 1S50; ITStJ. T. col- 

 larls Batsoh— vide Rud., ISIO; 1790, T. torQuata Gmelin— vide 

 Rud., 1810; ISOO. Alyselminthus slnuosus Zeder; ISOO. Taenia 

 breviai-tlculata Goeze; 1S03. Halysls sinuosa (Zeder, ISOO) 

 Zeder; 1S03, H. toixiuata (Gmelin, 17!10) Zeder— \-lde Rud., ISIO; 

 1S5S, HymonoK^pis (Lopldotrias )slniios« (Ze<1er, l.^Om Wein- 

 laiuU, 

 [PI. X. Ilss. 116-UM: PI. XI. flgs. 125-139; PI. XII. fi.srs. 140-U6; 

 PI. XIII. fig. 163.1 

 Diagnosis: RO""" to 160'n'» long by l""" to l'">"> broad. Head 

 almost globulair. rostelluni armed with a. simple row of 10 

 hooks 51 ft to 61 /I long. Neck very long. Anterior segments 

 of variable breadth and length; the following segments trape- 

 zoidal; posterior segments rounded. Genital unilateral, sit- 

 uate toward the anterior thiixl of the lateral margin: in each 

 pore is found a globular sac, armed with spines, and appear- 

 ing as a black point: this punctate line allows an invmediate 

 determination of the species. Eggs with 3 envelopes, the ex- 

 terior 42 /< to 44 /< hooks of oncosphere If lo 8 /i. 



Development: Cercocystis Dr. sinuosae found in Gammarus 

 pules by Hamann and von Llnstow; in Cyclops viridls Flsch, 

 C. agilis Koch and C. lucidulus Koch, by Mrazek. 



Host: Tame ducks (Anas boschas dam.); mallard duck (A. 

 bosohas): Brazilian teal (A. braziliensis); tame goose (Anser 

 anser dom.l; graylag goose (A. anser): pintail (Dafila acuta) ; 

 tutted duck (Aythya tuligula). 



Geographical distribution; Fr.ince, Germany. Italy. Sweden 

 and Bohemia. 



Tlie species sinuosa as at present adojited by anthofs 

 statuls on a most peonliar footinjr. 



Gooze left a desoription and figures of this worm, with the 

 MS. name Taenia hreviarticulata. from Anas fusca, which were 

 later published by Zeder (ISOO, pp. 295-295) under Alyselmin- 

 thus slnuosus. Accoi-ding to Krahbe (1S69. p. 29S) Rudolph! de- 

 termined as sinuosa forms which differ greatly from one 

 another. Dujardin flS4S) p. 573) then gave a more exact de- 

 scription of a form which he determined as T. sinuosa (Zeder) 

 Rud.. taken from Anas acuta, adopting Rudolphi"s synonymy 

 in all essentials. Krabbe (1SS9. pp. 29S-299) adopted Dujardln's 



