369] ANOPLOCEPHALIDJE—DOUTHITT 19 



The toto mount shows the whole of the female glands to be situated 

 slightly to the pore side of the median line; the other specimen shows 

 decidedly the opposite conditions in most proglottids. The shell gland 

 is very indistinct in the material at hand. Nothing could be made out 

 concerning its structure. The vitelline gland is 135/x long in transverse 

 measurement. The posterior border is straight. Near the left end the 

 gland measures 76/t across anteroposterior^ ; it narrows somewhat to- 

 wards the right until 40/i from the end ; it then narrows abruptly. The 

 ovary in immature proglottids consists of ten lobes which radiate ante- 

 riorly and laterally from a transverse portion. In its fully developed 

 stage, however, no such divisions can be recognized. The ovary has a 

 width of 420/i and extends practically through the proglottid antero- 

 posteriorly. It reaches its full development in the eighth or ninth 

 proglottid and disappears completely in the succeeding one. 



The uterus begins as a simple transverse tube which seems to be 

 confined wholly to the region between the excretory ducts. It develops 

 mostly by expansion of the primary lumen, this occurring first at the 

 end away from the genital pore. Short anterior and posterior outpock- 

 etings are present. In toto mount it appears as if these pockets are 

 separated by a considerable space from each other; this is due to the 

 fact that the eggs are shrunken, the outlines of the egg-masses being 

 taken for the outlines of the pockets. As the uterus becomes filled with 

 eggs it appears to force itself into the region ventrad of the excretory 

 ducts. The embryos in the uterus have three shells. The outer is 

 usually somewhat compressed ; when spherical it measures 48/u, to 55/* 

 in diameter. The embryo itself measures 13/* to 15.5/x, in diameter. The 

 length of the embryo plus the pyriform body is 17.5/t to 21/x. The 

 appearance of the horns of the pyriform body could not be made out. 

 These measurements would probably not hold true for fresher material. 

 It was not possible to make out much concerning the excretory ducts. 

 The dorsal duct lies laterad of the ventral, and usually, at least, in the 

 same plane. The two ducts appear to be approximately equal in size. 

 Transverse commissures are present, but can be made out only with 

 difficulty. 



It will be seen that this species is without doubt an Anoplocephala. 

 Yet it disagrees with the accepted conception of the genus in that the 

 testes are not confined to the median field, and in that the female 

 glands may not be placed to the pore side of the median line. Both of 

 these conditions were found in Andrya, where they were supposed not to 

 occur ; and the first was found also in another species of Anoplocephala ; 

 they cannot therefore be regarded as generic differences. The diagnosis 



