a General History of the Marine Polyzoa. 381 



granular border ; the mandible triangular, directed obliquely 

 upwards. Oceda (?). 



Loc. Africa {Miss Jelly). 



Steganoporella Jervoisii, n. sp. (PI. XVI. fig. 5.) 



Zoo?cia quadrangular, about twice as long as broad, closed 

 in by a glossy, transparent lamina, which is thickly covered 

 with minute white disks ; margin much raised, thin, smooth ; 

 the lamina (which is often intersected and divided into seg- 

 ments by opaque-white lines) depressed below, elevated 

 towards the orifice, where it is smooth, and having on each 

 side of it a foramen ; orifice arched above, the lower margin 

 slightly curved outwards, taller than broad, with a raised 

 thin margin ; on each side of it a prominent nodule, glassy 

 and transparent below, with a conspicuous opaque-white 

 summit. Avicularia infrequent, placed in the line of the 

 cells on a distinct area ; mandible somewhat raised, pointed, 

 directed straight upwards. Ocecia (?). 



Loc. Adelaide, Australia, on weed [Miss Gatty). 



This is a singularly beautiful species, distinguished by its 

 glossy, transparent, speckled lamina and the prominent opaque- 

 white nodules which flank the orifice on each side. 



The following recent species are probably referable to the 

 genus Steganoporella: — Eschara impressa, Moll. ( = Membra- 

 nipora gracilis, Reuss ; M. calpensis, Busk ; ? M. andega- 

 ••'.«?, Busk; M. bifoveolata, Heller: Micropora impressa, 

 "Waters) ; Flustra Rozieri, Audouin ; Membranxpora gothica, 

 Busk (=S. Rozieri } form gothica, mihi) ; Membranipora 

 magnilabris, Busk ; o. Smittii, Hincks. 



III. FOREIGN CHEILOSTOMATA [Miscellaneous). 



Family Microporellidae. 



Miceopoeella, Hincks. 



Microporella jissa, n. sp. (PI. X\ II. fig. 4.) 



Zooecia ovate, somewhat elongate, separated by distinct 

 furrows, the front surface convex, minutely granulated, 

 traversed by nodulous ridges which pass from the margin 

 towards the centre, punctate or areolated round the edges ; the 

 centre of the cell occupied by an elliptical depression, within 

 which is a narrow, longitudinal, slit-like pore ; orifice semi- 

 circular ; peristome thin, much raised, especially above, where 

 it bends in hood-like fashion over the mouth, the inner edge of 

 the lower lip very minutely crenate ; immediately below the 



