MARINE POLYZOA. 65 



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37. L. labiosa 82 



38. L. labrosa 82 



39. L. simplex 82 



40. L. areolata 82 



41. L. adpressa 82 



42. L. Malusii 83 



43. L. granifera 83 



44. L. hyalina 84 



45. L. discreta 85 



46. L. annularis 85 



1. Annatae. 

 A. With avicularia. 

 a. Median and single. 



* Superior. 



1. LEPRALIA BRONGNIARTII. PL LXXXI. figs. 1, 2, 3, 4, 5. 



Cells ovate, smooth, or transversely ringed, distinct, or sepa- 

 rated by reticulated spaces ; mouth circular ; each cell with an 

 avicularium at the summit above the mouth. Ovicell pyramidal, 

 carinate in front, crowned by an avicularium. 



Cellepora Brongniartii, And. Expl. i. 240,/rom Savig. Egypt. 



Polyp, t. 10. fig. 6. 

 Lepralia tenuis, Hassall, Ann. fy Mag. Nat. Hist. vii. 412 ; Johnst. 



Hist. Brit. Zooph. ed. 2. p. 303. t. 54. fig. 2. 

 Lepralia catenata, Peach, MSS. 

 Lepralia assimilis, Johnst. Hist. Brit. Zooph. ed. 2. p. 304 ; Gray, 



List Brit. Rad. p. 117. 



Lepralia Jacotini, Gray, List Brit. Rad. p. 117. 

 Hab. Britain : common on shells, stones and fuci. Ayrshire, Dr. 



Landsborough. Ireland, W. Thompson. 



A very curious and interesting form, and one subject to great 

 variety according to age and depth. It is remarkable for the 

 number of avicularia with which the polyzoary is furnished. 

 Besides the avicularium at the summit of each cell, or nearly so, 

 or at that of the ovicell when it exists, the interspaces between 

 the cells are studded with innumerable minute organs of the same 



