10 
Tapeworms from Ostrich 
T. difformis Rud. 1819; sie ist, wie er selbst sagt, identisch mit Taenia brevi- 
collis Frolich. In der Rudolphischen Sammlung finden sich in Glas No. 1906 
die Typen dieses Cestoden, deren Untersuchung gezeigt, dass es ein Vertreter 
des Genus Davainea ist. Ich behalte den Namen, zu welchem die Typen 
existieren, bei.” D. globocephala Fuhr., D. circumcincta (Krabbe), D. longi- 
collis (Mol.) are equally unknown, while of D. australis (Krabbe) only the 
armature of the head has been described. Under these circumstances any 
classification based upon characters other than those usually given (armature 
of scolex, position of genital pore) must of necessity exclude large numbers 
of species. I have therefore sub-divided the genus into the four divisions 
given above as the best available means of separating the greatest number 
of species into distinct classes with a view to facilitating identification and 
systematic manipulation. The classification of birds follows that of Sharp in 
the British Museum Handbook of Birds. The references given are other than 
are to be found in Fuhrmann’s Die Cestoden der Vogel. 
LIST OF SPECIES OF DAVAINEA AND THEIR HOSTS. 
Mammalia. 
PRIMATES. 
Homo sapiens L. 
D. asiatica (vonLinstow, 1901); 1901 a, 982; 
1901 b, 283. 
D. formosana Akashi 1 , 1917. 
D. madagascariensis 2 (Davaine, 1870); Blan¬ 
chard, 1891a, 438; 18916, 613; 1897, 34; 
1899 a, 200 and 215. Chevreau, 1891, 523. 
Davaine, 1877, liii and 922. Daniels, 1895; 
1896, 1455. Grenet and Davaine, 1869, 
233; 1870, 134. Holzberg, 1898, 174. 
Leuckart, 1891, 68. v. Linstow, 1901 a, 
984. Parona, 1898, 106. Stevens, 1916, 
329. Stiles, 1896 b, 55. 
Galeopithecus volans. 
D. lateralis Bourquin, 1906, 222. 
RODENTIA. 
Arvicanthys abyssinicus. 
D. polycalceola v. Janicki, 1902. Parona, 
1909, 2. 
Arvicanthys pumilis Sparrm. var. bechanae. 
D. trapezoides v. Janicki, 1904. Hunger- 
biihler, 1910, 516. 
Geomys breviceps Baird. 
D. sp. Douthitt, 1915. 
RODENTIA— continued. 
Lepus arizonae. 
D. retractilis Stiles, 1895. Stiles, 1895; 
1896, 195. Blanchard, 1899 a, 207 and 
215. Parona, 1898, 106. 
Lepus melanotis. 
D. salmoni Stiles, 1895. Stiles, 1895; 
Stiles, 1896, 198. Blanchard, 1899, 207 
and 214. 
Lepus sylvaticus. 
D. salmoni Stiles, 1895. Stiles, 1896, 198. 
Blanchard, 1899 a, 207 and 214. Parona, 
1898, 106. 
Mus flavidus. 
D. (?) gracilis v. Janicki, 1904, 779; 1906, 
570. 
Mus meyeri. 
D. celebensis v. Janicki, 1902, 275. 
Mus muschenbrocki. 
D. polycalceola v. Janicki, 1902, 258; 1906, 
543. Parona, 1909, 2. 
Mus rajah. 
T). blanchardi (Parona, 1898). Blanchard, 
1899 a, 210 and 216. Parona, 1898, 103. 
1 If the rostellar hooks be thorn-shaped, this is more probably a Dipylidium. 
2 Synonym: Taenia demarariensis Daniels, 1895. 
