100 BULLETIN 69^ UNITED STATES NATIONAL MUSEUM. 



APLOPARAKSIS FURCIGERA (Rudolphi, 1819) Fuhrmann, 1908. 



For description see Krabbe, 1869b, p. 315, pi. 8, figs. 205-207 (Taenia rhom- 

 hoidea). — Stiles, 1896f, pp. 34-35, pi. 3, figs. 31-34 {Dicranotsenia furcigera) . 



Hosts. — Nettion crecca, Anas platyrJiynchos. 



APLOPARAKSIS PENETRANS (Clerc, 1902) Clerc, 1903. 



For description see Clerc, 1903, pp. 271-274, pi. 8, figs. 10, 18, 19.— Kowa. 

 LEWSKi, 1907, p. 774, pi. 23, figs. 1-6; 1908, pp. 633-638, pi. 20, figs. 1-6. 



Hosts. — Pisohia damacensis, Gallinago gallinago. 



APLOPARAKSIS PUBESCENS (Krabbe, 1882). 



For description see Krabbe, 1882a, p. 355 (Txnia pubescens), pi. 1, figs. 23, 

 24, pi. 8, figs. 1, 5 (T. hirsuta). 



Hosts. — Helodromas ochropus, Scolopax rusticola. 

 Family TiENIID^ Ludwig, 1886. 



Family diagnosis. — ^Tsenioidea : Scolex usually with well developed 

 rostellum armed with a double crown of hooks, rarely with rudimen- 

 tary unarmed rostellum. Suckers unarmed. Gravid segments 

 longer than broad. A single set of reproductive organs in each seg- 

 ment. Genital pores irregularly alternate. Vas deferens coiled, 

 seminal vesicle absent. Testicles numerous, usually very numerous, 

 scattered throughout the medullary parenchyma, except in the pos- 

 terior median portion occupied by the double ovary, posterior of 

 which is the yolk gland. Uterus with median stem, and when fully 

 developed with lateral branches. Egg with a thin outer membrane, 

 and a thick brown radially striated inner shell. Adults in mammals 

 and birds. 



Type-genus. — Tsenia Linnaeus, 1758. 



Genus T^^NIA Linnaeus, 17B8. 



CladotseniaO' Cohn, 1901 (type, C. globifera (Batsch, 1786)= Tsenia cylindracea 

 Bloch, 1782; see Fuhrmann, 1906a, p. 220; 1907a, p. 293; 1908a, p. 84). 



Generic diagnosis. — Tseniidse: With the characters of the family. 

 Adults in mammals and birds. 



Type-species. — Taenia solium, Linnaeus, 1758. 



TiENIA CYLINDRACEA. Bloch, 1782. 



For description see Morell, 1895b, pp. 87-92, pi. 7, figs. 5-7 ( T. globifera).— Yolz, 

 1900, pp. 157-160, pi. 8, fig. 14 (T. globifera); pp. 161-163, pi. 8, figs. 15, 16 

 (T. armigera).—GouN, 1901b, pp. 373-380, pi. 32, figs. 51-53; pi. 33, figs. 

 55, 56 (Cladotxnia globifera). 



Hosts. — CercJineis tinnunculus, Falco sesalon, Falco peregrinus, 

 Haliseetus albicilla. 



TMUIA CONSCRIPTA Railliet and Henry, 1909. 



For description see Kowalewski, 1895a, p. 359, pi. 8, fig. 27 (Tsenia krabbei).— 

 Stiles, 1896f, pp. 42-43, pi. 12, figs. 151, 152 (Txnia krabbei). 



Host. — Anser anser domesticus. 



«For earlier synonyms of Tsenia, see Stiles, 1906a, p. 36. 



