CESTODA 99 



tion. Hence the exceptionability of the case rests on more 

 than my own evidence." In regard to this unfortunate dispute 

 I will only add the expression of my conviction that Drs 

 Maddox and Macdonald will eventually become satisfied that 

 no cestode scolex is capable of displaying either mature or 

 immature ova in its interior. 



BIBLIOGRAPHY (No. 15). Cobbold (1. c., supra), 1865-75. 

 Idem, " On Measly Meat, &c./' the ' Veterinarian/ Dec., 1876. 

 Idem, v 'The Mutton Tapeworm (T. tenella)," No. 16 in my 

 revised list of Entozoa, the ' Veterinarian/ Dec., 1874. 

 Diesing, C. M. (Tcenia tenella, Pruner nee Pallas), in "Kevis 

 der Cephalocotyleen," ' Sitzungsb. der Math. -Mat. Class d. k. 

 Akad. der Wissenschaften/ Bd. xlix, s. 369, 1864. Maddox 

 (1. c., supra), 1873. Mayrhofer, J. G., ' Die helminth, des 

 Menschen/ Erlangen, 1854. Pruner, 'Krankheiten des 

 Orients/ s. 245, 1847. 



Taenia lophosoma, Cobbold. This is a good species not- 

 withstanding the doubts that have been expressed by Heller 

 and others regarding it. I have called it the ridged tapeworm 

 in consequence of the presence of an elevated line coursing the 

 whole length of the body, which measures about eight feet. 

 The reproductive papillae are remarkably prominent and uni- 

 serially disposed throughout the entire chain of proglottides. 

 It is quite an error to suppose that this species is a malformed 

 cestode, or that it has any resemblance to Kiichenmeister's 

 variety of tapeworm from the Cape of Good Hope. Neither 

 does it in the slightest degree resemble the remarkably mal- 

 formed T. mediocanellata described by Mr Cullingworth. Of 

 the distinctiveness of this parasite as a species, any one may 

 satisfy himself by an inspection of the nearly complete strobile 

 preserved in the Pathological Museum attached to the Middlesex 

 Hospital Medical College. From the examination of several 

 mature proglottides detached from this specimen, I find their 

 average breadth to be one fifth of an inch, by three quarters 

 of an inch in length. Their greatest thickness does not exceed 

 the th of an inch. The eggs resemble those of other tape- 

 worms, and offer a diameter of about gjg" from pole to pole. 



BIBLIOGRAPHY (No. 16). Cobbold, "Parasites of Man," in 

 the ' Midland Naturalist/ April, 1878, p. 98. Idem, < Tape- 

 worms/ 1st edit., p. 52, 1866; 3rd edit., p. 27, I875.Culling- 

 worth (see Bibl. No. 18). Davaine, ' Les Cestoides/ 1. c., p. 573. 

 Heller, 1. c., s. 594. 



