Zoology.-] NATURAL HISTORY OF VICTORIA. {Tolyzoa. 



Plate 37, Fig. 5. 



LEPEALIA LARVALIS (P. McG.). 



Description. — Cells elongated, confused, pierced towards the base by a variable 

 number of foramina; two large openings about the middle of the cell, with a 

 prominent ridge running between them to the point of the much projecting 

 triangular lower lip ; mouth large, arched above, and frequently with a spine on 

 either side at the angle of junction of the upper and under lips. Avicularia large, 

 on the side of a cell below one of tbe large openings. 



Reference. — P. H. MacGillivray, Trans. Roy. Soc. Vict., 1868. 



On algse, Williamstown. 



Explanation or Figures. 



Plate 37. — Fig. 5, natural size. Fig. 56, magnified. Fig. 5a, small portion, more highly 

 magnified. 



Plate 37, Fig. 6. 



LEPRALIA DIADEM A (P. McG.). 



Description. — Cells broad, distinct ; mouth straight below, arched above, with 

 several spines ; a central roundish pore below the mouth ; the edges of the cell 

 obscurely grooved. An avicularium on one or both sides below the mouth, 

 mandible long and pointed outwards. Ovicell with a broad band of vertical beaded 

 lines round the upper margin. 



Reference. — P. H. MacGillivray, Trans. Roy. Soc. Vict., 1868. 



This very beautiful species may be at once distinguished by the 

 peculiar ovicell, the upper part of which is occupied by a broad 

 band of vertical beaded lines, leaving a lower semicircular space 

 smooth. 



On alga?, Williamstown and Queenscliff ; Warrnambool, Mr. H. 

 Watts. 



Explanation of Figures. 



Plate 37. — Fig. 6, natural size. Fig. 66, magnified. Fig. 6a, small portion, more highly 

 magnified. 



[30] 



