434 TUBTJLIPORIPJS. 



HABITAT. On small stones from deep water. 



LOCALITIES. Coast of Antrim, abundant (Hyndman) : 

 Guernsey (A. M. N.) : Hebrides ; off Caithness, deep 

 water (C.W. P.). 



STOMATOPORA DIASTOPORIDES, Norman. 

 Plate LXIII. figs. 3, 4. 



ALECTO DIASTOPORIDES, Norman, Shetland Rep. in Rep. Brit. Assoc. for 

 1867 (18G8), 310. 



Zoarium lobulate, the branches diverging from a common 

 centre, and rapidly widening into fan-shaped expan- 

 sions, flat and closely appressed, punctate. Zooecia im- 

 mersed, rather stout and elongate, irregularly scattered, 

 crowded on the terminal enlargements, the tubes marked 

 out by transparent lines ; oral extremity usually very 

 slightly raised. Ocecia (?) . 



THIS is the largest of the British Stomatoporce, and has 

 very much the look of a Diastopora. The zoarium is 

 lobed ; and in characteristic specimens branches diverge in 

 all directions from a short and slender stem, and widen 

 out above into broad flabellate extremities. These fan- 

 shaped lobes usually form a very striking feature of the 

 species. The transparent lines marking the boundaries 

 of the cells are very distinctly traceable on the flat and 

 depressed surface of the zoarium. The zooecial tubes are 

 very large as compared with those of the following 

 species. 



HABITAT. On shell and stone from deep water. 



LOCALITIES. Shetland, 70-110 fathoms (A. M. N.) : 

 Wick (C. W. P.) : off the Maiden Lighthouses, co. Antrim, 

 62-72 fathoms (Swanston). 



