80 SOME NEW QUEENSLAND ENDOPARASITES 



Si/slematic : — The parasite belongs to the Paniter- 

 inidse, but differs from the iirmed genera, Biulcrina, Paru- 

 terina and Culcitella. The arrangement of the exeretory 

 canals is characteristic in the last named. The uterus is 

 simple in our form whereas it is more or less completely 

 bilobed in Bivterina and crescentic or else rather broader 

 than long in Paruterina. Besides, the testes are numerous 

 in the last named two genera whereas they ar*^- few in th^' 

 cestode from Pachyrephala. It ai)pears to resemble 

 Rhab'htmelro. in many \\ays', but the latter has an unarmed 

 scolex. 



The new genus for which the name Sphceruterina is 

 proposed, may be characterised as follows : — Paruterinidse ; 

 rostellum armed with two rows of hooks ; genital pores 

 alternating irregularly ; genital duets passing between the 

 excretory canals and dorsally to the longitudinal nerve ; 

 testes few, situated behind the female organs ; uterus 

 rounded and simple ; paruterine organ terminating in an 

 anteriorly-situated capsule — near Paruterina and Biuterina. 

 In birds. 



Type : Sphceruterina imnctata Jnstn from Pachy- 

 cephala rufiventris Lath. 



Thelastomum alaturn n. sp. (Oxyuridae.) 

 (PI. X., figs. 3-7.) 

 From the intestine of the larva of a Cetonid beetle, 

 Cacachroa decorticata Macl, from Cairns, North Queensland, 

 collected by Mr A. A. Girault, and forwarded through the 

 Director of the Queensland Museum, Brisbane. 



Female :■ — Total length 2.9 mm ; the tail, i.e., from 

 the anus to the posterior end of the parasite, being .9 mm. 

 (figs. 3, 5.) The female is rather a stout worm whose 

 anterior end is gradually narrowed. The posterior region 

 becomes strongly constricted to form a long, almost 

 straight, sabre-like tail of fairly uniform width except 

 at th3 end, where it is pointed. The greatest breadth 

 is the region of the vagina (about .20 mm). This organ 

 terminates on a relatively large, backwardly projecting 

 prominence situated in the posterior half of the body, 

 about .6 mm in front of the anus. 



