392 ESCHARID.E. 



top of each fenestra usually a small, raised, subcircular 

 aviculariura. Ocecia somewhat elongated, smooth, fre- 

 quently subimmersed, with a slit-like fissure in front. 



Many small oval avicularia distributed over the zoarium 

 on both surfaces. 



Height, of fine specimens about 14 inch, more usual size 

 inch. Breadth of the spreading foliaceous form 

 sometimes as much as 2 inches. 



HABITAT. On shells, stones, corals, &c. from shallow to 

 very deep water. 



LOCALITIES. Northumberland, from the deep-water 

 fishing-boats (King) : off the coast of Durham, 60 

 fathoms (R. Howse) : Embleton Bay, deep water, re- 

 markably large and fine specimens from this locality 

 (R. Embleton) : Peterhead, two specimens (C. W. P.) : 

 Scarborough (Bean) : Orkneys (E. Forbes and Barlee) : 

 Shetland and Fulah Island (Jameson) : the Minch ; Shet- 

 land, occasionally on the Unst Haaf, to 170 fathoms ; 

 abundant on the Out-Skerries Haaf, not so large as on 

 the Northumberland coast (A. M. N.) *. 



GEOGRAPHICAL DISTRIBUTION. Arctic Sea (Sir E. Bel- 

 cher) : Bohuslan and Norway, pretty common, from 

 20-30 to 200-300 fathoms, in the latter depths on Gor- 

 gonm and Ocvlina (Baron Uggla and Prof. Smitt) : Fin- 

 mark, not rare (Smitt) . 



RANGE IN TIME. Coralline Crag (S. W.) : Red Crag 

 (A. Bell) f- 



* This species is said to have been obtained by Allman at Cape Clear; 

 but ns no other southern locality for it is known, I venture to think that 

 there may have been some mistake, and that one of the nearly related forms 

 may have been confounded with it. The Retepora Beaniana of my ' Devon 

 and Cornwall Catalogue ' is the P. Couchii of the present work. 



t The Italian Pliocene form which Manzoni refers to It, Beaniana 

 (Hryoz. Foss. Ital., Quarta Contrib. p. 19, pi. v. fig. 20) is If. Couchii, 

 mihi. 



