BY S. .1. JOHNSTON. 289 



ing two or three years, I added considerably to tlie number of 

 these Trematodes mainly from two species of frogs, ^ iz., Hyla 

 aurea and Limtiodynastes pero7iii, which are amongst the com- 

 monest and most easily catchable frogs in the neighbourhood of 

 Sydney; and are, in consequence of this, the frogs most used in 

 the biological laboratory here. These Trematodes included 

 examples from the \uugs ( Pnetimonaeces ), bladder (Gorc/odei-a), 

 duodenum (Bolichosaccus), small intestine (JJrachysaccus), and 

 rectu m( Biplodiscus ). 



During the years 1910 and 1911, collecting frogs from various 

 parts of New South Wales, I secured and examined for Entozoa 

 the following speciesf: — 



Cystic; ntath i i ).e — Mixophyes fasciolatns{ 2 ) . 



* Limnodynastes peronii( 150), 

 *L. dorsalis{32). 

 *L. tasmaniensis{77). 

 Crinia si(/ni/'era(\2). 

 Ifyperolia marmurata{ 12). 

 BuFONiD.E - Fsendophry7ie bibronii{lO). 

 Hylij).e —*JIyla cobridea{i9). 

 If. peronii{l'2). 

 * II. phyllochroa{?)\). 



II. dentata(()). 

 * II. cittop7is{'2). 

 * II. f' n;in(/ii{32) . 

 * II. owe«(300). 

 * II . lesueurii{ 1 2). 

 * II. Jreyciiieti.('26). 

 Miicophyes fasciolatus. — The two specimens of this frog ap- 

 parently contained no Entozoa of any kind. 



Limtiodynastea peronii.- -At first, unfortunately, no record of 

 the number of specimens examined Avas kept, but approximately 

 about 1 50 specimens have been examined and the following 



t The number following the name of the frog gives tlie number of speci- 

 mens examined, while tlie asterisk indicates that Trematodes were 

 found. 



