74 AVIAN CESTODES, 



backwards from the "bridge" in a small arch, towards the 

 shell-gland. The vitellarium lies just behind the middle of 

 the ovary, and, like it, lies asymmetrically, being displaced 

 towards that margin which bears the genital cloaca. The 

 organ is about 0062 mm. broad, by 002 mm. long. In 

 general shape it somewhat resembles a lobulated kidney, the 

 hilum being directed antero-laterall}-. The posterior border is 

 divided to form a few lobes. Its duct passes forwards towards 

 the shell-gland, a small organ lying between it and the ovarian 

 bridge The vitelline gland is the most ventrally placed of the 

 female organs, the ovary being the most dorsal. The shell-gland 

 lies anterodorsal to the yolk-gland The vagina passes inwards 

 from the female pore posteriorly to the cirrus-sac and vas deferens, 

 dorsally to the ovarian lobe of the corresponding side, to take up 

 the oviduct just behind the bridge near the shell-gland. A 

 receptaculum seminis was not observed. The mature uterus is a 

 flat, sac-like organ which fills almost the whole ventral portion 

 of the medulla. It lies l)eIow the vas deferens and the remnants 

 of the testes, these structures being present in ripe segments, 

 and occupying a large part of the dorsal region of the medulla 

 The eggs are circular, the outer delicate shell being 0-035 mm. 

 in diameter, the inner more resistant covering 0027 mm., and 

 the oncosphere about 0"020 mm. The embryonal booklets are 

 very delicate, and mea.sure O'SIO nnn. in length. 



Systematic. — This parasite has been recorded by me * as 

 Amoebofffnia sp., mention being made of the presence of well 

 developed suckers, an armed rostellum, and somewhat irregularly 

 altei'nating genitalia. A. more careful examination shows that 

 there are two circlets of hooks in this species, wliereas members 

 of the genus Amoebotrciiia have only a single row. It seems to 

 come near Anomotn'nia Cohn, and Late7'ot(eniaY\\\\Yn\., but differs 

 from the lattei- in tlie disposition of the testes. I am, conse- 

 quently, placing it under Cohn's genus. 



The type-slide of Anoniofrenia rhinochetl will be deposited in 

 the Australian Museum, Sydney. 



* Ji)lmsl(iM, 'I'. H., JiHuii. Ptoc. Hoy. Soc. N. S. Wales, xliv., 1910, p. 

 122. 



