106 RECORDS OF THE AUSTRALIAN MUSEUM. 



The stapes is very large and hollow, and plainly visible from 

 above. It covers the foramen ovale, resembling the attachment 

 of a Limpet shell. Clamped to its apex is the saucer-shaped 

 proximal expansion of the columella. The columella (fig. 40 a, 

 col.) is long, straight and cylindrical. Proximally it extends into 

 a shallow saucer-shaped expansion which is applied to the stapes 

 dorsally. The columella is attached distally to a pedate, 

 cartilaginous extrastapedial (fig. 40, a and b, est.), which beats 

 dorsally a small suprastapedial bud (fig, 40, a and b, sst.). The 

 annulus tymp aniens (fig. 40 b, a.ty.) supports the tympanic 

 membrane, which rests on the pedate outer surface of the extra- 

 stapedial cartilage. 



Note. — Since compiling the list on p. 98 I have received 

 Co-Types of Limnodynastes marmoratus, Lamb, and Heleioporus 

 sudelli, Lamb, and the Type of Hyla vinosa, Lamb. For this 

 privilege I am indebted to Dr. R. Hamlyn Harris, Director, and 

 Mr. H. A. Longman of the Queensland Museum. It is evident 

 that they all belong to known species. 



Hyla vinosa, Lamb, is a varietal form of 11. lesueuri, D. tfc B., 

 and should designate Queensland examples of this species. 



Limnodyna$te8 marmoratus, Lamb, is identical with L.Jletcheri, 

 Boulenger. 



Heleioporus sudelli, Lamb, cannot be specifically separated 

 from //. pictus, Peters, the only difference being the absence of a 

 black tip to tlie metatarsal tubercle. 



