ENDOPARASITES OF DOMESTIC PIGEON.— JOHNSTON. 



169 



The tapeworm has been recorded from two or three species of pigeons 

 (including the turtle dove) from Europe [Delafond, Megnin, Railliet, Wolffhugel] ; 

 from a Brazilian species [Fuhrmann]; and from a South African pigeon [Gough^]. 

 The present notice constitutes the first record of its occurrence in Australasia. 



A brief account has been given by Megnin* and Linstow'' under the name 

 Taenia sphenocepJiala Rud., and by Railliet" who named it Tcnnia ddajondi. A 

 summary was pubhshed by Stiles^ but the best accomits have been given by Fuhr- 

 mann^ and Wolffhugel.^ I have not had access to the papers written by the last- 

 named author regarding B. delafondi and consequently have compared my sj)ecimens 

 •with the account published by Fuhrmann who examined Railliet 's original material. 



Ripe segments measure 2-5 to 3-2 mm. in breadth by about one millimetre 

 in length. The greater part of the medulla is occupied by the large uterus but the 

 receplaculum seminis and vestiges of the ovary and vitellarium persist. 



o.\r Sim 



Fig. 1. — Bertiella delafondi. Ripe segment showing shape of uterus ; also remnants of 

 ovary, fert.d., fertihsing duct; l.n., longitudinal nerve; ov., ovary; ov.sem., outer vesicula 

 seminalis ; r.setn., receptaculum seminis ; tr.e.v., transverse excretory vessel ; tr.m., transverse 

 musculature, well developed anteriorly and posteriorly in each ripe proglottis ; «(., uterus ; v. 

 vagina ; vit., vitellarium ; v.v., ventral vessel. 



Fig. 2. — -Egg, showing shells and oncosphere. 



' Gough, Notes on South African Parasites, Rep. S. Afr. Assoc. 6, 1908 (1909), p. 2. 



* Megnin, Un nouveau Tenia du pigeon ou plutot ime espece douteuse de Rudolphi re- 

 habilitee, C. R. Soe. Biol., Paris (9), 3, pp. 751-3. 



Linstow, Beobachtungen an Vogeltaenien, C. Bakt., 12, 1892, p. 501. 

 'Railliet, Sur ime Taenia du pigeon, &c., C. R. Sor. Biol., Paris (9), 4, pp. 49-53. 

 'Stiles, Tapeworms of Poultry, Bull. 12, U.S.D.A., B.A.I., 1896, 88 pp. 



* Fuhrmann, Die Anoplocephaliden der Vogel. C. Bakt., 32, 1902, pp. 132-5. 



' Wolffhugel, Ein interessantes Exemplar des Taubenbandwurmes Berlin delafondi, Berlin 

 tierarztl Wochenschr., 1904 (3) (not available). 



