APPENDIX. 



BRITISH SPONGES NOT REFERRED TO IN THE 

 FOREGOING WORK BY DR. BOWERBANK. 



A. Calcaeeous Sponges of Eenst Haeokel. 



Haeckel, in his Monograpli, ' Die Kalkschwamme,' 

 enumerates and describes the following calcareous 

 sponges as members of the British Fauna. Of course 

 the generic names which he employs cannot in many- 

 instances be retained by biologists, but must give 

 place to genera of earlier date. The localities appended 

 are those from which Haeckel has examined specimens. 



1. AscETTA coeiacea (Montagu). 



Ascetta coriacea, Haeckel. L. c, p. 24, pis. iii and v, figs. 2a— 2c. 

 Leucosolenia coriacea, Bow. et auctorum. 



Clathdna subphwea, Carter. Ann. Nat. Hist , ser. 4, vol. vii 

 (1871), p. 278. 



Habitat. — Shetland (Norman), Berwick Bay (John- 

 ston), Great Cumbrae(Frauenf eld), Scarborough (Bean), 

 Peterhead (Peach), Budleigh-Salterton (Carter), Dub- 

 lin Bay (Hassall), Belfast (Percival Wright), Lough 



YOL. IV. 15 



