296 Rev. T. Hincks's Contributions towards a 



cells and the large marginal aviculariura have not been 

 detected in this form either by Heller or myself. 



Family Escharidse (part), Smitt. 



Lepealia, Johnston (part) . 



Lepralia ocellata^ sp. n. (PI. VII. figs. 4.) 



Zoarium incrusting, of a light brownish colour. Zomcia 

 quincuncial, disposed with great regularity, subquadrate 

 (somewhat wider above than below), distinct, massive, of 

 large size, depressed towards the base, rising towards the 

 orifice, separated by a deep fissure, in which a delicate par- 

 tition-line runs ; surface thickly covered with large circular 

 perforations ; orifice ample, well arched above, constricted on 

 each side, a little above the lower margin, which is straight, 

 operculum apparently membranaceous, peristome not eleva- 

 ted ; immediately below the orifice a tall central mucro with 

 fluted surface, rising from an expanded base ; behind it on 

 the lower margin a small avicularium placed transversely, 

 with pointed mandible ; on one side of the orifice a very large 

 avicularian cell (extending to the margin of the zooecium) 

 with punctured surface, a large semicircular mandible on the 

 inner side looking towards the orifice ; sometimes a second 

 avicularian cell of similar structure but much smaller size on 

 the other side of the orifice. Ocecium (?). 



Loc. Malta {Miss Jelly). 



There is a good deal of variability in the size of the lateral 

 avicularia ; but whenever two are present one is much larger 

 than the other. Otherwise there is much constancy in the 

 characters. 



Lepralia lancifera, sp. n. (PI. VII. figs. 6.) 



Zoarium incrusting, sometimes of a very dark brown colour 

 (almost black), sometimes lighter. Zooecia disposed in lines, 

 distinct, six-sided, surrounded by raised lines, front wall 

 elevated, strongly calcified, covered with large perforations 

 extending to the base of the suboral umbo, sometimes areo- 

 lated, surface glossy ; orifice rounded above (arch low), the 

 lower margin straight, much wider than high, slightly con- 

 tracted a short distance above the lower margin, peristome 

 rising into a pointed elevation at the sides ; immediately below 

 the orifice a very prominent umbo carried out straight from the 



