TWO NEW MAMMALIAN CESTODES. 431 
(20) von Liystow. Centralb. f. Bakt., Orig.-Bd. xxxvii., 1904. 
(Neue Helminthen.) 
(21) Lyman.— Studies on the genus Cittotenia.” Trans. Amer. 
Micros. Soc. 1901-2, xxiii—xxiv. 
(22) Ratiurer.—Traité de Zoologie Médicale et Agricole. 1895. 
(23) Rreum.—Studien an Cestoden. Dissertation, Halle, 1881. 
(24) Zeitschrift fiir die gesamten Naturwissenschaften, 
Bd. liv., 1881. 
(25) Srruus.—“ A Revision of adult Cestodes of Hares and 
Rabbits.” Proc. U.S. Nat. Mus. vol. xxix., 1897. 
(26) Srmes & Hassaun.—vw.S. Dep. of Agric., Bulletin No. 4, 
1893. (“A Revision of the Adult Cestodes of Cattle, 
Sheep and allied Animals.”) 
Index Catalogue of Medical and Veterinary 
Zoology : Cestoda & Cestodaria. Pub. Health. & Mar. 
Hosp. Service of U.S., Hyg. Lab., Bull. 85, 1911. 
(28) ZscHoKKe.—‘ Die Cestoden der Marsupialia und Monotre- 
mata.” Semon’s Zoolog. Forschungsreisen in Australia 
und dem Malayischen Archipel, 1898. 
(27) 
(29) Zool. Anz. 1898, Bd. xxi. (‘* Weitere Untersuch- 
ungen an Cestoden aplacentaler Siiugethiere.”) 
(30) Centralb. f. Bakt., Orig.-Bd. xxxvi., 1904. (‘‘ Die 
Darmcestoden der Amerikanische Beuteltiere.” 
(31) Centralb. f. Bakt. Abt. 1, Orig.-Bd. xliv., 1907. 
(‘ Moniezia diaphana, n. sp. Hin weiterer Beitrag zur 
Kenntnis der Cestoden aplacentaler Siiugethiere.”) 
EXPLANATION OF THE PLATHS. 
Lettering. 
@!=Cirrus: Vit.Gl.=Vitelline gland. 
C.P.=Cirrus-pouch. Res.= Ovarian reservoir. 
Ex.C.=Excretory canal. L.Ex.= Longitudinal excretory canal. 
G.A.=Genital atrium. Ex.P.=Excretory pore. 
F.G.P.=Female genital pore. M.L.= Muscular layers. 
M.G.P.=Male genital pore. V.D.=Vas deferens. 
Ut.=Uterus. Ves.Sem.=Vesicula seminalis. 
R.S.=Receptaculum seminis. L.L.= Lateral lappet. 
Vag.= Vagina. Sk.=Suckers. 
Sp.M.=Sphincter muscle. V.Ex.= Ventral excretory canal. 
Test.=Testes. D.Ex.= Dorsal excretory canal. 
S.T.=Spongy tissue. N. or L.N.=Longitudinal nerve. 
L.M.= Longitudinal muscle-layer. Ov.=Ovary. 
Ov.'T.=Ovarian tubules. E.Sh.=Fimbriated sheath. 
T.Ex.=Transverse excretory canal. C.M.=Circular muscle-layer. 
Sh.G].=Shell-gland. Ov. R.=Rudiments of female glands. 
Prate I. 
Cittotenia lagorchestis. 
Fig. 1. Portion of strobila showing lateral projections of segment margins. The 
two uteri distinct in the earlier sezments and meeting in median field 
in older proglottides. Scolex with suckers, and no rostellum. 
