84 MARINE POLYZOA. 



? Flustra impressa, Audouin, Expl. i. 240 ; Savigny, Egypt, pi. 10. 

 fig. 7; (non Lamarck, ii. 222; nor Moll, Esch. p. 51. no. 1 . 

 pi. 2. fig. 9). 



Hab. Coast of Ayrshire, Landsborough. Sidmouth, Mrs. Gatty. 

 Holy Island and Berwick Bay, G. Johnston. Isle of Man, 

 E.Forbes. Coast of Cornwall, Peach. Var. a. Lambay Island, 

 W. Thompson. Portram, Ireland, Mrs. Gatty. On shells, 

 stones and fuci. 



44. LEPRALIA HYALINA. PI. LXXXII. figs. 1, 2, 3. Pl.XCV. 



figs. 3, 4, 5. PL CI. figs. 1, 2. 



Cells subcylindrical, elongated or compressed and raised in 

 front, suberect, the wall thin, transparent and smooth ; mouth 

 circular, frequently with a contracted, often subtubular sinus 

 below, the upper or posterior margin much raised, sharp. Ovi- 

 cell globular, erect, free, punctured. 



Var. j8. cornuta. With a thick short tubular process on each 

 side of the mouth. 



Var. y. depressa. Cells flattened, adpressed, contiguous. 



Cellepora hyalina, Linn. Syst. 1286; Fabric. Faun. Gr&nl. 435. 



no. 442; Esper, Cellep. t. 1. figs. 1,2; Lamx. Corall. 38; 



Bosc, Vers, iii. 148 ; Oken, Lehrb. Nat. 86 (non Cavolini nee 



Chiaje). 



Berenicea hyalina, Hassall, Ann. fy Mag. Nat. Hist. vii. 367. 

 Cellepora personata, Chiaje, Mem. iii. 39. t. 34. figs. 17, 18, ova- 

 rian cell. 



Escharina personata, Lamk. An. s. V. ii. 236. no. 24. 

 Lepralia hyalina, W. Thompson, Ann. Nat. Hist. v. 253 ; Johnst. 



Hist. Brit. Zooph. ed. 2. p. 301. t. 54. fig. 1. 

 Var. |8. Wall of the cells thicker, calcareous and opake. 

 Lepralia cylindrica, Hassall, Ann. & Mag. Nat. Hist. vii. 368. 



pi. 9. fig. 6. 



Var. y. Cells heaped, usually opake and calcareous. 

 ? Cellepora ovoidea, Lamx. Corall. 38. pi. 1. fig. 1 ; Blainv. Act. 



444 ; Lamk. Anim. s. Vert. ed. 2. ii. 259 ; Lamx. Exp. Meth. 



2. t. 64. figs. 4, 5 ; D. Chiaje, Anim. s. Vert. Nap. iii. 38. t. 34. 



fig. 33. 



Celleporella hyalina, Gray, List Brit. Rad. p. 128. 

 Hab. Britain, common, on Laminarice and other fuci. Ireland, 



common, W. Thompson. Cornwall, Peach. Orkney, Lieut. 



Thomas, R.N. California, Dr. Sinclair. Cape of Good 



Hope, Harvey. W. Greenland, 73 20' N., 57 20' W. Var. /3. 



California, Dr. Sinclair. Var. y. E. Falkland Island, 4-10 



fathoms, Darwin (PI. CI. figs. 1, 2). 



