TYPES OF SPECIES OF CKSTODA — KRBFFT. 1 1 



be an Ophryocotyle. In 1893 Diamare 8 erected a genus Cotuynia 

 for tapeworms possessing double genitalia along with certain 

 other characters and thought 8 that T. bifaria might also belong 

 to this genus. Stiles 9 in 1896 followed Diamare and listed 

 T. tuberculata as a synonym of Cotugnia bifaria but gave 

 Monticelli's account and figures of the parasite. In 1900 

 Diamare 10 referred to the imperfect account given by Krefft. 

 In 1906 Fuhrmann 11 dealt with the synonymy of Diploposthe 

 Icevis, Bloch, and included Tcenia bifaria, von Sieb. under it. 

 He stated that T. tuberculata was in all probability a Diploposthe 

 and was perhaps synonymous with D. Icevis but on account 

 of the difference between the geographical range of the Aus- 

 tralian host species, and the Anseriform birds which may act 

 as the host of D. Icevis in the Northern Hemisphere, he thought 

 that the two Cestodes might be distinct. Accordingly he listed 

 Krefft's species as Diploposthe? tuberculata in 1908. l2 I have 

 recently 13 given a summary of the above facts, mentioning that 

 the species was a true Diploposthe. 



My detailed examination of Krefft's type material places 

 beyond all doubt that his T. tuberculata is a synonym of 

 Diploposthe Icevis, Bloch. One has only to compare the above 

 description and figures with those given by Jacobi 14 in 1897, by 

 Cohn 15 in 1901, and by Kowalewski 1B in 1903, in order to 

 recognise the synonymy. Fuhrmann 17 , in a very important, 

 paper on the genus Diploposthe stated that he had examined the 

 original material of Tcenia bifaria, von Sieb., Diploposthe lata, 

 Fuhrm. 18 , and D. suigeneris, Kowalewski 19 and found them all to 

 be synonymous with D. Icevis Bloch. He also discussed several 

 points concerning the anatomy of this species, in which Cohn, 



s Diamare— Boll. Soc. Nat. Napoli, vii., 1893, p. 12. 

 » Stiles— Bull. Dept. Agr. U.S.A., Bur. Animal Industry, 12, 1896, 

 pp. 30-1 



io Diamare— Centr. Bakt., xxviii., 1900, p. 849. 



ii Fuhrmann— Centr. Bakt. Orig., xl., 1906, pp. 217-224. 



i 2 Fuhrmann— Zoolog. Jahrb., Suppl. Bd. x., Hett, 1, 1908, p. 85. 



is Johnston— Journ. Roy. Soc. N. S. Wales, xliv., 1910, pp. 99-100. 



14 Jacobi-Zool. Jahrb. Abth. Anat., x. 1S97, pp. 2S7-306. 



15 Cohn— Nova. Acta. Leop. Carol. Akad., lxxix., 1901, pp. 421-429. 



16 Kowalewski — Bull. Acad. Sci. Cracovie, Classe Sci. math, nat., 1903 

 pp. 518 9. 



17 Fuhrmann -Centr. Kakt. I., xl., 1906, pp. 217-224. 



18 Fuhrmann — Zool. Anz., xxiii., 1900, pp. 50-1. 



19 Kowalewski — Lor. cit., pp. 518-9. 



