BY T HARVEY JOHNSTON, MA., D.SC (55 



Acanthotcenia. La Rue (1911) has recently dealt with 

 the Proteocephalidae, and has restored Linstow's name 

 (Johnston, 1909, pp. 112, 114) to full generic rank. He 

 includes all the known Proteocephalids from amphibia 

 and snakes under OpMotcenia, a genus whose members 

 •do not possess the tiny cuticular spines which occur on 

 the anterior end of species of Acanthotcenia. Our form 

 which infests several species of Australian venemous snakes, 

 is, however, a typical Acanthotcenia. It was originally 

 described from Pseudechis porphyriacus and very shortly 

 afterwards (Johnston, 19116, p. 239) was recorded from 

 the tiger snake, Notechis scutatus, mention being made 

 that a closely allied species parasitised two other snakes, 

 Denisonia superha (p. 239) and Pseudechis australis. A 

 €areful comparison has led me to consider that aU four 

 snakes harbour the same species of cestode. The main 

 difference seen is in regard to the number and shape of 

 the testes, but the former is variable, while the elongate 

 form of the glands as seen in specimens from the two last 

 named snakes, is apparently due to imperfect preserva- 

 tions, both series of specimens having been taken by me 

 from the intestine of reptiles which had been preserved 

 for some time in alcohol. The arrangement of all the 

 organs as seen in transverse sections, agrees entirely with 

 that already figured (1911a, pi. vii., figs. 2, 3.) 



Acanthotcenia tidswelli, Johnston. 



Specimens of this tapeworm which is known to occur 

 in Varanus varius (Johnston, 1909, p. 103), and in 

 F. gouldii (19116, p. 242), have been collected from Bell's 

 monitor V. bellii, forwarded by Dr. T. L. Bancroft, from 

 Eidsvold, Burnett River. This reptile harboured in its 

 stomach several nematodes, Physaloptera varani ?, similar 

 to those already recorded from the two above-named 

 lizards, while in its blood there were present haemogregarines, 

 Hcemogregarina varanicola . 



Some authorities regard V. bellii as being only a well- 

 marked variety of V. varius. 



Hymenolepis diminuta (Rud.) 



From rats, thus decumanus and M. rattus [Alexandrijius) 

 caught in Brisbane. Not previously recorded from 

 Queensland. 



