NOTES AND EXHIBITS. 577 



Dr. Cox exhibited specimens of the British snail, Helix 

 (Xerophila) ericetorum, Miiller, naturalised in Australia ; the 

 shells were found in grass tussocks at "Levens," about 12 miles 

 west of Warooka, York's Peninsula, S. Australia ; the species 

 was probably imported with some English grass seed which a few 

 years ago was there cultivated; but this appears to be the first 

 recorded instance of its occurrence in Australia. Also drawings 

 and specimens of mollusca in illustration of his paper. 



Mr. Froggatt sent for exhibition a collection of Hymenoptera — 

 about 100 species — recently obtained by him at Ballarat, Victoria; 

 a large Tipula from Rose Bay; and some Homopterous galls of both 

 sexes, probably of a small variety of Brachyscelis ovicola, Schr., 

 from Wollongong, together with two species of parasitic Hymen- 

 optera — one of them with a curiously developed last abdominal 

 segment — bred from the female galls. 



Mr. Baker exhibited specimens of Acacia prominens from 

 various localities in illustration of his paper. 



Mr. Fletcher read a note, in reply to Dr. Dendy's recent article 

 on the supposed oviparity of Peripatus leuckartii (Victorian 

 Naturalist for September, Vol. viii., No. 5, p. 67), in which he 

 pointed out that whatever the Victorian Peripatus might be 

 (whether oviparous as Dr. Dendy supposes ; or like P. novce- 

 Zealandice, though viviparous occasionally laying eggs which, 

 however, do not hatch, as observed by Prof. Hutton and corro- 

 borated by Mr. Sedgwick), Peripatus, as it occurs in N.S.W., is 

 certainly viviparous ; and in support of his statement he exhibited 

 a series of twenty-eight embryos, just those which had come under 

 his notice in the dissection of two or three females, or had been 

 extruded during the drowning of several others, and comprising 

 specimens old enough to show the full number of developing post- 

 oral appendages up to individuals whose development is so nearly 

 complete that they must have been within a very brief period 

 indeed of birth ; even without actual witness of parturition he 

 thought the evidence adduced was conclusive. 



