Cellepora. Z. ASCIDIOIDA. 277 



5. C. LiEvis, " dichotomously branched^ cylindrical, the pores 

 wide, with simple mouths." Rev. Dr Fleming. 



Cellepora he vis, jF/em. Brit. Anim. 532. L' Eschars lisse, Blainv. Acti- 



iiol. 4-28. 



Hah. " A single specimen from deep water, Zetland," Fleming. 



" Height an inch and a quarter, diameter one-tenth ; the branches 

 are smooth, with the orifices of the cells smooth and concave ; to- 

 wards the extremities the branches are rough with the forming cells, 

 and the orifices are more declining', circumscribed, a little prominent, 

 with a blunt process at the proximal margin." Fleming. 



33. Lepralia,* Johnston. 

 Character. Polypidom calcareous or memhrano -calcareous, 

 adnate, crustaceous, spreading circularly^ formed of a layer ofur- 

 ceolate cells in juxtaposition, horizontal, and arranged in quin- 

 cunx ; aperture terminal, often covered with an opercular ovary. 

 — Polypes ascidian. 



* Margin of the aperture plain. 



1. B. HYALiNA, " diaphanous, the cells forming an even smooth 

 crust, with tubular simple moutlis." Rev. Dr Fleming. 



Cellepora hyalina, Lin. Syst. 1286. Fabric. Faun. Groenl. 4-35. Bosc, 



Vers, iii. 148 Berenicea hyalina, Flem. Brit. Anim. 533 La 



Berenice hyaline, Blainv. Actinol. 445.. 



Hub. " On stones, shells, and corallines from deep water," Fleming. 



" The crust is semitransparent, the divisions of the narrow cells 



indicated by whitish lines, and the orifices are narrow, cylindrical, 



simple tubes. The crust is not circumscribed, otherwise it resembles 



the genus Discopora." Dr Fleming. 



2. L. NiTiDA, cells ovate, prominent, transversely ridged, or, 

 when dry, fissured. Dr Fleming. 



Plate xxxiv. Fig. 7. 



* Lepralia — " sea-scurf" — derived from Atw^a, leprosy, and otA/oc, marine : 

 an expressive name for the genus suggested by my friend, the Rev. Thomas 

 Riddell. It is spionymous with the " Berenicea" of Dr Fleming, but not of La- 

 mouroux, and the name belongs of right to the latter ; — the more readily yield- 

 ed up since we find a " Berenicea" also amongst the Medusae. Milne- Edwards 

 names the genus " Escharoides," but neither this nor Escharina, another of his 

 names, can be adopted, since some natinalists use the terminations aide and ina 

 as family appellatives. Moreover what saith Linnajus? — " Generic names includ- 

 ing other generic names are unworthy of a scientific nomenclature." And again 

 — " Generic names ending in oides are prohibited." See Young's Med. Litera- 

 ture, p. 28. 



