76 MARINE POLYZOA. 



Var. j3. Lip with a denticle on the proximal margin, Johnst. 



Brit. Zooph. ed. 2. 317. t. 55. fig. 9. 

 Escharella variolosa, Gray, List Brit. Rad. p. 125. 

 Lepralia ovalis, Hassall, Ann. Nat. Hist. ix. 413 ; Johnst. Brit. 



Zooph. ed. 2. p. 307. pi. 56. fig. 1. 



Mr. Peach appears to have noticed two marginal spines in this 

 species, although the absence of spines enters into the characters 

 given to it by the learned author of British Zoophytes ; which is 

 the more to be wondered at, since he quotes Mr. Couch's figure 

 (pi. 22. fig. 6), in which three spines are represented. But as 

 the next figure of what Mr. Couch terms L. vinca does not ex- 

 hibit the smallest difference from that of his L. variolosa, I find 

 it difficult to determine to what either of his forms really belongs. 

 This synonym, therefore, must be admitted with great dubiety. 

 This is one of the species which, when overgrown, is difficult of 

 immediate recognition. 



25. LEPRALIA NITIDA. PL LXXVI. fig. 1. 



Cells ovate, raised in front ; wall composed of four to nine 

 ribs on each side, the spaces between which are filled up by a 

 diaphanous membrane; mouth with four to six oral spines. 

 Ovicell subglobose, surface granular. (Occasionally an avicu- 

 larium on a small eminence at the lower point of the cell, or irre- 

 gularly scattered in the interstices between the cells.) 



Cellepora nitida, Fabr. Faun. Grce.nl. 435. no. 443. 



Cellepora (Escharoide) nitida, M.-Edw. Lamk. Anim. s. Vert. 

 ed. 2. ii. 259. 



Berenicea nitida, Flem. Brit. Anim. 533. 



Lepralia nitida, Johnst. Brit. Zooph. 277- pi- 34. fig. 7 > Hassall, 

 Ann. fy Mag. Nat. Hist. vii. 367 ; W. Thompson, Ann. Nat. 

 Hist. v. 253 ; Couch, Corn. Faun. hi. 114. pL 22. fig. 3 ; Gray, 

 List Brit. Rad. p. 120. 



Hob. Coast of Devon, Miss Cutler. Start Point, J. S. Bower- 

 bank. Coast of Ayrshire, Landsborouah. Isle of Man, E. 

 Forbes. Scarborough, Bean. Berwick Bay, Johnston. Coast 

 of Cornwall, Peach. Strangford Loch, W. Thompson. On 

 shell and stone. 



26. LEPRALIA ANNULATA. PL LXXVII. fig, 1. 



Cells ovate, distinct ; front slightly keeled, with five to seven 

 shallow grooves on each side, each groove with a series of per- 

 forations ; mouth suborbicular, margin thickened in the fertile 

 cells, projecting into a mucro above and below ; three distant 



