MARINE POLYZOA. 71 



Berenicea coccinea, Flem. Brit. Anim. p. 533 ; Johnst. Edin. 



Phil. Journ. xiii. 222. 

 Lepralia coccinea, Johnst. Hist. Brit.Zooph. ed. 2. p. 322. t. 57. 



figs. 2, 3. 



Lepralia tridentata, Couch, Corn. Faun. p. 115. pi. 22. fig. 5. 

 Var. /3. With a triangular slit or loop on each side of the aperture. 

 Lepralia appensa, Hassall, Ann. fy May. Nat. Hist. vii. 367 . 



pi. 9. fig. 3. 



Lepralia ansata, Johnst. His..Bn7.ZoopA.ed.2.p.307.t.54.fig. 12. 

 Lepralia Ballii, Johnst. Hist. Brit. Zooph. ed.2. p. 321.t.56.fig. 5. 

 Escharina coccinea, Ballii, ansata, Gray, List Brit. Rad. p. 124. 

 Hab. Portaferry, Ireland; Belfast Bay ; Isle of Wight, IV.Thomp- 



son. Start Point, J. S. Bowerbank. Sidmouth, Mrs. Gatty. 



Coast of Ayrshire, Landsborouyh. Isle of Man, E. Forbes. 



Cornwall, C. Peach. St. Andrews, Prof. Reid. Falmouth, 



Cocks. Off the Tees, Lieut. Thomas, R.N. On stones and 



shells, &c. 



Comparison of the various figures will suffice to show the iden- 

 tity of all these forms. This species is one of those which un- 

 dergoes a remarkable change in deep water, becoming very strong 

 and thick, and the spines are often worn off. 



13. LEPRALIA LINEARIS. PI. LXXXIX. figs. 1, 2, 3. 



Cells completely immersed, much depressed, rhomboidal or 

 subovate, disposed in linear series, and separated from each other 

 by a raised line ; mouth orbicular, with a sinus below ; two to 

 three oral spines ; a small avicularium on a rounded mamillary 

 eminence on either side of the cell in front, sometimes single 

 and central; mandible acute, triangular. Ovicell globose, pro- 

 minent, punctured. 

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



pi. 9. fig. 8; Johnst. Hist. Brit. Zooph. ed.2.p.3Q8.t.54.fig.U. 

 Herentia linearis, Gray, List Brit. Rad. p. 123. 

 Hab. Start Point, J. S. Bowerbank. Coast of Suffolk, G. B. 



Orkney, Barlee. Beaufort Dyke, 110-147 fathoms, Captain 



Beechey, R.N. Roundstone, W. Thompson. Carrickfergus, 



id. Strangford Loch, id. Belfast Bay, 20 to 25 fathoms, id. 



Mediterranean, M ( Andrew. East of Kingstown Harbour, and 



Giant's Causeway, Hassall. On shell. 



14. LEPRALIA ALATA, n. s. PI. LXXIX. fig. 3. 



Cells immersed ; outline oval or subrotund ; front with grooves 

 radiating to a central eminence or umbo ; mouth suborbicular, 

 with two to three spines above ; a small avicularium on each side 

 of the body about or below the middle, directed horizontally 

 outwards. 

 Hab. Cape Horn, 40 fathoms, on pebble, Darwin. 



B 



