316 POLYZOA INFUNDIBULATA. 



each cell posteriorly being absent." Lepralia pedilostoma, Hassall in Ann. anc 

 Mag. Nat. Hist. vii. 368, pi. 9, fig. 4. Flustra Peachii, Couch, "9th Report of tin 

 Cornwall Polytechnic Society, p. 81." Membranipora Peachii, Couch Corn. Faun 

 iii. 120. pi. 22. fig. 13. 



Hob, On rocks and shells near and within low-water mark. 

 " Blackrock and Portmarnock (Dublin Bay) not uncommon. I have 

 also found specimens of this species adhering to the bottom of an old 

 hulk, the Olbers, in Plymouth sound," A. H. Hassall. Very plenti- 

 ful on the Cornish coast, C. W. Peach. Coast of Ayrshire, Rev. D. 

 Landsborough. Berwick Bay, very rare, G. J. 



Crust spreading circularly, and forming considerable patches, 

 thickish and calcareous, of a light crimson-red, or sometimes of a 

 pure white colour, often with a glassy lustre : cells rather large, 

 shortly ovate, ventricose, arranged semi-alternately in regular rows, 

 contiguous and sometimes almost imbricate, oblique or rising towards 

 the aperture, which is wide and patulous, oval, with a slight con- 

 traction on each side, giving it a remote resemblance to the sole of a 

 shoe, the rim smooth, plain, and slightly everted. The walls of the 

 cells are either foraminous or merely reticulated with lighter and 

 more opaque spots, an appearance which proceeds from the punctures 

 being occupied with a thin membrane. 



Specimens, furnished with profuse liberality by Mr. Peach, have 

 led me to the conclusion that Flustra Peachii is a mere state of this 

 very fine species, produced by the obliteration of the superior wall 

 of the cells. In this guise it appears like a gauze-work expansion 

 spread over the surface of shells and stones, of a membranous tex- 

 ture, with oval cells, bounded by a rather thick and plain border, 

 and at each extremity with one or two minute raised circular punc- 

 tures. The cells are often rendered unequal, and somewhat deformed 

 by crowding and pressure. 



22. L. VERRUCOSA, cells oblique, areolated around the base, 

 smooth in front ; aperture gaping, semicircular, with a plain 

 rim jutted upon by a strong mucro. W. Bean. 



PLATE LVI. FIG. 3. 



Cellepora verrucosa, Esper Cellep. tab. 2. fig. 1, 2. Lepralia Johnstoni, Bean MSS. 

 Lepralia verrucosa, W. Thompson in Ann. Nat. Hist. xiii. 440. Lepralia reticu- 

 lata, Couch Corn. Faun. iii. 117. pi. 22. fig. 9. 



Hob. On rocks and bivalve shells, not common. Near Scarbo- 

 rough, very rare, W. Bean. Dublin Bay, Miss Ball. Coast of 



