636 



deullj liuding inure tJian one species. He has kindly 

 placed the following abstract of his work upon one 

 of these forms at my disposal, })rior to the publication 

 of his article. 



Head round-conical, somewhat four-angled, broader than 

 long- (0.098mm to 0.136mm long; O.llmm to 0.192mm broad). Aceta- 

 bula round to elliptical, 0.06mm in diameter, directed slightly 

 forward. Neck distinct, terete, 0.5cm long. Proglottides trape- 

 zoidal, broader than long. Genital apertures marginal, always 

 on the right-hand side of the segment, slightly in front of the 

 middle. The male organs comprise a testis; veslcula semina- 

 lis, cirrus sac and cirrus, vesicula and cirrus being the most 

 prominent organs of the whole segment. Cirrus very short, 

 roughened with minute prickles about perpendicular to its sur- 

 face. Female organs consist of a narrow vagina, large recep- 

 taculm seminis, and a comimon ovary and uterus (See von Lin- 

 stow, 1893). Vagina and cirrus sac are in the same trans- 

 verse plane and pass dorsal to both longitudinal canals. 

 Length 35mm; breadth 0.046mm to 0.47mm; thickness 0.046mm to 

 0.113mm. Number of segments about 600, becoming as much as 

 0.39mm long. Egg about 0.026mm in diameter; embryos ellip- 

 soidal, 0.016mm in diameter; emibryo ellipsoidal, 0.016mm by 

 0.0225mm; hooks about 0.008mm long. 



Hab: In small intestine of comimon fowl, shortly back of 

 g'izzard. 



Mr. Conard looks upon this form as a species of 

 Davainea "with unilateral pores," although lie has 

 not as yet found any liooks upon rlie head. Final de- 

 cision regarding the form must be reserved until tlie 

 appearance of Mr. Conard's paper. 



FIMBRIARIA Frollch, 1802. 



1892, Epision Linton.) 

 [PI. XXI. fig. 271.1 



This genus was proposed first by Frolich, and later 

 by Linton, for tapeworm with an anterior hammer-like 

 extremity. The scolex is generally (? always) wanting. 

 Three species F. malleus ((loeze, ITSii) Frolich. F. mi- 



