254 Rev. T. Hincks's Contributions towards a 



Family Escharidse (part.), Smitt. 

 Lepralia, Johnston (part.) . 

 Lepralia cincta, n. sp. (PI. VIII. fig. 6.) 



Zocecia quincuncial, subovate, or linear oblong, or six- 

 sided, wide in the middle and narrowing off towards the top 

 and bottom, surrounded by conspicuous raised lines, slightly 

 convex (sutures shallow), depressed below, rising towards a 

 very prominent umbo immediately below the orifice ; surface 

 punctured and nodulated ; orifice arched and expanded above, 

 contracted below, constricted by a denticle on each side, just 

 above the lower margin, which curves slightly outwards; 

 operculum black and glossy ; frequently a small pointed avicu- 

 larium on the umbo. Ocecium shallow, but of great width, 

 the oral margin almost straight, surface uneven, punctured, 

 sometimes bearing an umbo, extended in front so as to form a 

 prominent wall-like enclosure round the orifice, with a circular 

 foramen in the centre of it. 



Zoarium of a dark brown colour. 



Loc. Napier, New Zealand {Miss Jelly). 



Lepralia subimmersa, MacGillivray. (PI. VIII. fig. 1.) 



The figure shows the structure of the orifice. In the speci- 

 men from which it was taken the surface is beautifully reticu- 

 lato-punctate. The species forms large spreading crusts of a 

 rich orange colour. 



Loc. Warrnambool ( Watts) ; Port Phillip Heads {J. B. 

 Wilson) . 



XV. CHEILOSTOMATA.— MISCELLANEOUS. 



Family Myriozoidae. 



Schizopoeella, Hincks. 



Schizojjorella argentea, Hincks. (PI. IX. fig. 6.) 



[' Annals/ for Feb. 1881, pi. ix. fig. 6.] 



An examination of the dorsal surface of this beautiful 

 species shows that it presents a peculiar and very curious 

 structure, and that its mode of attachment must be different 

 from that which is usual amongst its congeners. The cells 

 (at the back) are separated and isolated by a deep suture and 

 elongate-oval in form. The surface is smooth, glassy, and 

 shining ; an elliptical opaque white patch occupies the 

 centre (PI. IX. fig. 6 a) ; set round the edge are six prominent 



