SCHIZOPORELLA SPINirERA. 241 



in the littoral regioiij aud on stones, shells, &c., from deep 

 water. 



Localities. Very widely distributed. 



Form unicornis. Guernsey ; South Devon (one of the 

 commonest littoral species) ; Ilfracombe; Filey (T. H.) : 

 Northumberland and Durham (Alder) : St. Andrews (Dr. 

 M'Intosh) : Ayrshire (Landsb.) : the Minch (A. M. N.) : &c. 



Form ansata. Shetland, 40-170 fathoms, extremely 

 abundant ; the Minch (A. M. N.) : Antrim (Hyndman) : 

 Hastings (Miss Jelly) : Cornwall, 30-40 fms. (T. H.) : &c. 



Geographical Distribution, Form unicornis : — Adri- 

 atic (Heller) : Naples (A. W. Waters) : Gibraltar Bay 

 (Landsb.) : France, S.W. (Fischer) : North America 

 (Leidy) : Durban, South Africa* (W. Gates). Form 

 ansata: — Greenland ('Valorous' dredgings). Bergen, 

 both forms (A, M. N.) . 



Range in Time. Form ufiicornis : — Coralline Crag (S, 

 Wood) : Vienna Basin ; Austro-Hungarian Miocene 

 (Reuss) : Italian Pliocene (Manzoni) : Scotch Glacial 

 deposits (Geikie) : Palaeolithic (A. Bell) , Form ansata : — 

 Coralline Crag (S. Wood) : Vienna Basin (Reuss) : Ital. 

 Pliocene (Manzoni) : Palaeolithic (A. Bell). 



SCHIZOPORELLA SPINIFERAj Johuston. 



Plate XXXV. figs. 6-8. 



Lkpralia ciliata, Hass. Ann. N. H. vi. 171, & Tii. 367, pi. ix. fig. 2 : Cot<ch, 

 Corn. Faim. iii. 118, pi. xxii. fig. 10. 



* The South-African specimens are extremely beautiful. The surface of 

 the zoarium is silyery and lustrous, and of the most remarkably delicate 

 texture ; the wall of the cells is reticulated, the punctures appearing as very 

 deep perforations in a thick viti*eous crust. The OYicell is more or less 

 punctured in addition to the usual sculpture, and the cells are very regular 

 in form and arrangement. The specimens show very plainly the influences 

 of climate. 



R 



