SPONGIiE. 
4 Spong . 
33. W ierzejs&i, A. Beitrag zur Kenntniss der Susswasaerschwamme. 
Verh. z.-b. Wien, 1888, pp. 529-536, pi. xii. 
Pott’s Spongilla novce-terrce appears to be an abnormal Meyenia (Ephy- 
datia ) mulleri , Lieberk. Other cases of abnormality in Meyenia and 
Euspongilla } and of variation in gemmules, are described. Other authors 
have described these as new species or varieties. 
II.— SUBJECT-INDEX 
TO LI8T OP PUBLICATIONS. 
Distribution. 
Plymouth Sound, Bourne. 
Arctic region, Sollas (22). 
Lusitanian region, id. t. c. 
Caribbean region, id. t. c. 
Brazilian region, id. t. c. 
Magellanic region, id. t. c. 
Patagonian region, id. t. c. 
S. African region, id. t. o. 
Indo-Pacific region, Sollas (22). 
S. Australian region, id. t. c. 
Kerguelian region, id. t. c. 
Sweden, Fristedt. 
Tunis (30). 
English Channel, Topsent (28). 
Ohio river, Mills. 
Morphology. 
General Anatomy ( v . sub.). 
Hinde (10, 11), Dawson, Dunikowski, Dendy (5, 6), Noll, 
Wierzejski, Mills, Sollas (22), Topsent (25). 
Spicules, &c. 
Noll, Priest, Sollas (22). 
Choanocytes. 
Sollas (22), Dendy (6), Bidder. 
Embryology. 
Fiedler, Topsent (24, 25), Sollas (22), Weltner (31, 32), Noll, 
Dendy (6). 
Physiology (v. sub.). 
Bidder, MacMunn, 
Fossil Forms ( v . sub.), 
Geinitz, Katzer, Dunikowski, Dawson, Hinde (10, 11). 
Miscellanea. 
Parasitism — Noll. 
Abnormality — Wierzejski. 
