THE VICTORIAN NATURALIST. 155 



Trigonoplax unguiformis, De Haan ... West Channel 

 Hymenosoma ovatus, Stimpson ... All grounds 

 H. rostratum, Haswell ... Do. 



Anomura. — 



Cryptodromia lateralis, Gray ... Off Queenscliff 



Galathea australiensis, Stimpson ... West Channel 



Munida subrugosa ... Do. 



Cancellus typus, Milne, Edwards ... Off Queenscliff 



Eupagurus lacertosus, Henderson ... Do. 



E. lacertosus, van Nana, Henderson ... Do. 



Macrura. — 



Alphaeus socialns, Heller ... All grounds 



A. villosis, Olivier ... Do. 



Virbius australiensis, Stimpson ... Off Queenscliff 



Pandalus leptorhynchus, Stimpson ... Do. 



Leander intermedius, Stimpson ... All grounds. 



Mollusca. — The only shells of special interest were : — 



Conus segravei, Gatliff, the first record 



for Port Phillip ... Off Quarantine Ground. 



Erato deniiculata, Pritchard and Gat- 

 liff, found alive ... Do. 



Nucula grayi ... Near St. Leonard's. 



DESCRIPTIONS OF SOME MALLOPHAGA FROM 

 AUSTRALIAN BIRDS. 



By Messrs. S. A. Le Souef and H. Bullen. 



(Communicated by D. Le Souef, C.M.Z.S.) 



{Read be. fur e the Field Naturalists' Club of Victoria, 9th December, 1901.) 



Birds are the hosts of numerous parasitic hemipterous insects 

 belonging to the sub-order Mallophaga. In Europe and 

 America these have been worked out very thoroughly, but in 

 other countries they have received little attention, for, owing to 

 their small size, they easily escape notice. Each family of birds 

 has it own group of parasites, and a family with a wide dis- 

 tribution— as, for instance, the ducks — will have the same parasite 

 on it in all parts of the world with but slight variations in size, 

 the warmer countries generally affording the larger insects ; hence 

 many European species are found on Australian birds. It is 

 interesting to note also that the colour of the parasite seems to 

 depend a great deal upon the colouration of the bird. 



The classification of the group has been worked out by Leach, 



