230 THE ANIMAL PARASITES OF MAN 



a small^ moth \Asopia farinalis), as well as in its larva, in an 

 orthopteron (Anisolabis annulipes), and in coleoptera (A cis spinosa 

 and Scaurus striatus). Experimental infections have been successful 

 on rats as well as on human beings. In America other species 

 of insects may be the intermediary hosts. 



LITERATURE. 



RUDOLFHI, C. A. Entoz. syn. Berol., 1819, p. 689. 

 CREPLIN, F. C. H. Obs. de entoz., i., Gryph, 1825, p. 71. 



WEINLAND, D. F. An Essay on Tape-worms of Man. Cambridge, U. G., 1858. 

 Beschreibung zweier neuen Taenoiden an d. Menschen. (Nov. Act. Acad. 



Caes. Leop. -Carol., 1861, xxviii.) 

 LEIDY, J. Occur, of a rare hum. Tapew. (Amer. Journ. of Med. Sc. [2], 1884, 



Ixxxiii., p. no; Proc. Ac. nat. Sc., Philad., 1884, p. 137.) 

 PARONA, E. Du un caso di T. flavop. rise, in una bambina di Varese. (Gior. 



R. Ace. med., Torino, 1882, xxxii., p. 99.) 

 GRASSI, B. Bestimmg. d. 4 von Parona . . . gef. Taenien. (C. f. B. u. P., 



1887, i., p. 257.) 



T. flavop., leptoc., diminuta. (Atti. R. Ace. sc., Torino, 1888, xxiii., p. 492.) 

 SONSINO, P. Su par. dell' uomo con un nuovo caso di T. flavop. (C. f. B., 



P. u. I., 1896 [i], xix., p. 937.) 

 PREVITERA, G. Due casi prob. di T. leptoc. nei minat. d. zolfare. (Boll. Ace. 



Gioen. sc. nat., N. S., 1900, No. 63, Catania, p. 9.) 



ZSCHOKKE, F. Seltene Par. d. Menschen. (C. f. B. u". P., 1892, xii., p. 497.) 

 LUTZ, A. Beobacht. iib. d. als T. nana u. flavop. bek. Bdw. d. Mensch. (Ibid., 



1894, xiv., p. 61.) 

 MAGALHAES, P. G. de. Ein zweit. Fall v. Hym. dimin. als menschl. Paras, in 



Brasil. beob. (Ibid., 1896 [i~|, xx., p. 673".) 

 PACKARD, F. A. T. flavop., with descr. of a new Specim. (Journ. Am. med. 



Ass., 1900, xxxv., p. 1551.) 

 GRASSI, B., and G. ROVELLI. Ric. embr. s. Cestocli., Catania, 1892. 



3. Hymenolepis lanceolata, Bloch, 1782. 

 Syn.: Tcenia lanceolata, Bloch; Drepanidotcenia lanceolata, Railliet, 1892. 



[This comes in the genus Drepanidotcznia. F. V. T.] 

 The parasite measures 30 130 mm. in length and 5 18 mm. in 

 breadth ; the head is globular and very small ; the rostellum is 

 cylindrical, with crown composed of eight hooks (0*031 0*035 mm. 

 in length). The neck is very short. The short segments increase 

 gradually and equally in breadth, but only a little in length ; the 

 female glands lie on the side opposite to that on which the genital 

 pore is situated ; the three elliptical testes are on the same side 

 as the pores ; the cirrus is armed and slender. The eggs have 

 three envelopes and are oval (0-050 0*035 mm.), the external 

 enveippe is membranous and much wrinkled, the middle one is thick 

 and the internal one very thin. 



It inhabits the intestine of ducks, geese, and diving birds. 



