MARINE POLYZOA. 73 



B. Species having vibracula. 



18. LEPRALIA CILIATA. PL LXXIV. figs. 1, 2. PL LXXVII. 



figs. 3, 4, 5. 



Cells ovate or subglobose, surface granular, an elongated 

 acuminate vibraculum on one side of the body ; a semilunar 

 pore frequently on an eminence in the middle of the front of the 

 cell, above the centre; mouth with numerous (five to seven) spines; 

 lower lip straight, entire. Ovicell globose, surface granular. 



Eschara ciliata, var. ft Pall. Elench. 38. 



Eschara vulgaris, var. ft Moll, Seerinde, p. 62. pi. 3. fig. 11. 



Cellepora ciliata, Linn. Syst. 1286; Fabr. Faun. Grcenl. 434. 



no. 441. 



Berenicea utriculata, Flem. Brit. Anim. 533. 

 Lepralia ciliata, Johnst. Brit. Zooph. 27$. pi. 34. fig. 6 ; Couch, 



Corn. Faun. iii. 118. pi. 22. fig. 10 ; W. Thompson, Ann. Nat. 



Hist. v. 253 ; J. Macgillivray, Ann. fy May. Nat. Hist. ix. 



467 ; Johnst. Hist. Brit. Zooph. ed. 2. p. 323. pi. 57- figs. 4, 5 ; 



Gray, List Brit. Rad. p. 121. 

 Lepralia insignis, Hassall, Ann. fy Mag. Nat. Hist. vii. 368. 



t. 9. fig. 5 ; Couch, Corn. Faun. t. 22. fig. 1 1 ; J. Macgillivray, 



Ann. fy Mag. Nat. Hist. ix. 46?. 



Lepralia ciliata, var. ft Johnst. Brit. Zooph. ed. 2. p. 323. 

 Flustra Genisii, Aud. Expl. p. 239, from Savig. Egypt. Rept. 



t. 9. fig. 5. 

 Escharina vulgaris, part., M.-Edw. Lamk. Hist. ed. 2. 231 ?; 



Gray, List Brit. Rad. p. 123. 



Hob. Britain (South Coast?); Mediterranean? Savigny. Bel- 

 fast Bay, W. T. America, Pallas, non vidi. Beaufort Dyke, 



110 to 145 fathoms, Capt. Beechey. 



The spines are frequently wanting in old and worn, or per- 

 haps deep water specimens. On careful inspection, however, 

 the stumps of them may usually be observed, but the existence 

 of the opening for the vibraculum on the side of the body, and 

 the crescentic opening in the middle, will, together, always suf- 

 fice, in every state, to distinguish the present from any other 

 British form. 



19. LEPRALIA GATTY.E. PL LXXXIII. fig. 6. 



Cells ovate, pointed inferiorly, raised in front or umbonate, 

 punctate, with shallow radiating grooves ; mouth rounded above, 

 lower lip straight ; five oral spines, the base of which is black ; 

 a slender vibraculum on each side at the top of the cell ; a semi- 

 lunar pore in front above the centre. Ovicells globose, punc- 

 tured. 



B2 



