ON A NEW GENUS OF BIRD-CESTODES. 145 



enters it at about the middle of the proglottid. Though 

 the uteri are crowded with ova in various stages, no 

 details could be satisfactorily made out in regard to the 

 eggs and oncospheres. 



Systematic position :— The sac-like character of the 

 uterus and the general organisation of the whole worm, 

 indicate that it belongs to FuhrmannV family Dilepiniclce 

 and to his subfamily Dilepinince. However, it possesses 

 some very striking features which do not allow of its 

 inclusion in any of the known genera. It is therefore pro- 

 poposed to erect for its reception, a new genus, Clelandia, 

 in honour of my colleague at the Bureau, Dr.* J. B. Oleland, 

 who has shown a very keen interest in parasitology, both 

 in Western Australia and in this State. The characters of 

 the proposed genus, based on its type species C. parva, sp. 

 nov., may be stated as follows : — Scolex with powerful 

 unarmed suckers ; rostellum with long hooks arranged in a 

 single row on an apical disc ; genital pores unilateral ; 

 genitalia single ; testes few in number and forming a circle 

 round female genitalia; cirrus large and provided with 

 powerful spines, especially on the base, but all of practically 

 similar shape; mature uterus sac-like and nearly filling 

 segment. 



The possession of unilateral genitalia separates this new 

 genus from other genera in the same subfamily possessing 

 alternating pores, e.g., AmcBbotcenia, Fuhrmannia, Anomo- 

 taenia, etc., whilst the presence of a single circlet of hooks 

 on the rostellum separates it from allied genera with uni- 

 lateral pores, e.g., Dilepis, Cyclorchida, etc. 



The main distinguishing characters of Clelandia lie in the 

 male genitalia and the rostellar hooks. The arrangement 

 of the testes in a circlet around the female complex only 



1 Fuhrmann, Die Cestoden der Vogel in Zoolog. Jahrb,, loc. cit., p. 5U 

 J— Sept. 1,1909. 



