1918.] THE SPONGES OF GUERNSEY. 113 



be nearly doubled by someone who had leisure to hunt both the 

 shore and deeper water. 



It may be remarked before closing that sponges are well 

 preserved in a ten per cent, solution of formalin. The colour 

 tends to fade and the liquid gets discoloured at first and must 

 be changed a few times before sealing up finally. For best 

 effect each specimen should be fastened to a strap of mica cut to 

 fit the jar. 



LIST OF SPECIES. 



Grantia COmpressa. Abundant Guernsey, Herm, Alderney and Sark 

 (Sharp). 



G. ensata. Guernsey (Buckland) Castle Cornet, Bordeaux (Sharp). 



G. tesselata. Off Fermain in 13 fathoms (Norman), Sark (Buckland). 



Sycandra Ciliata. Abundant Guernsey. Herm, Alderney and Sark 



(Sharp). 



Leueonia nivea. Guernsey (Buckland), Sark (Bowerbank), Bordeaux, 

 L' Islet, Alderney (Sharp). 



L. fistulosa. Off Saints (Norman), L'Islet (Sharp). 



L. pumila Guernsey (Norman). 



LeuCOSelenia botryoides. Sark (Bowerbank). 



L. COntorta. Guernsey (Buckland), Sark (Bowerbank). 



L. COriacea. Guernsey (Buckland), Sark (Bowerbank). 



L. lacunosa. Cobo (Sharp). 



Leueocypsia Gossei. Sark (Bowerbank). 



Halichondria incrustans. Guernsey (Bowerbank), Bordeaux, L'Islet 



(Sharp), Alderney (Sharp). 



H. panicea. All round the coasts, Alderney, Sark (Sharp). 



H. pulchella. Guernsey (Norman). 



H. angulata. Guernsey (Norman). 



H. eaduca. Guernsey (Norman). 



H. incerta. Guernsey (Norman). 



H. COrrugata. Herm (Norman). 



H. Candida. St. Martin's Point, dredged (Norman). 



Hymeniacidon albescens. Sark (Bowerbank). 



H. earuneula. Sark (Bowerbank). 



H. eonsimilis. Belgreve Bay ; Herm (Norman), 



H. maeilenta. Herm (Norman). 



H. SUlphurea. Guernsey (Norman). 



H. erustula. Guernsey (Norman). 



H. eelata. Bordeaux, Havelet (Sharp), Sark (Bowerbank). 



H. Bueklandi. Sark (Buckland). 



ISOdlCtya Peachii. Guernsey (Norman). 



I. rosea. Sark (Bowerbank). 



I. elegans. Herm (Norman). 



I. indistineta. Guernsey (Norman). 



I. Simplex. Off St. Martin's Point (Norman). 



I. fistulosa. Off Saints Bay (Norman). 



I. fallax. Guernsey (Norman). 



