296 Kev. T. Hincks's Contributions toioards a 



cells and the large marginal avicularium have not been 

 detected in this form either by Heller or myself. 



Family Escharidas (part), Smitt. 



Lepralia, Johnston (part) . 



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



Zoarium incrusting, of a light brownish colour. Zocecia 

 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 zocecium) 

 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. Ooscium (?) . 



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 land/era, sp. n. (PI. VII. figs. 6.) 



Zoarium incrusting, sometimes of a very dark brown colour 

 (almost black), sometimes lighter. Zocecia 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 



