3 Por. 
Subject Index. 
0627 
tie Stefani, 0. Siliuospongic fossili 
della Liguria oeeidcntale. Roma Rond. 
Ac rad. Lincei Sor. 5 29 1920 Sera. 2 
(16-19 237-240). 22 
Stephens, Jane. The freshwater 
sponges of Ireland. Dublin Proc. R. 
Irish Acad. 35 Section B 1920 (205-254) 
pis. xxvi-xxix. 23 
Thacker, A. G. vide Richardson, L. 
Topsent, E. Spongiaires du Musee 
zoologique de Strasbourg. Monaxo- 
nides. Monaco Bull. Inst, ocean. No. 
381 1920 (1-36). 24 
Vaysstere, A. Etude sur la fauno 
marine de la cote oeeidcntale du Golfe 
do Marseille (region de Carry). Mar- 
seille Ann. Mus. Hist. nat. 17 1920 
(93-110). 25 
Vinassa de Regny, P. Triadische 
Algon, Spongien, Anthozocn und Bry- 
ozoon aus Timor. M.Wannor Paliiontol. 
v. Timor Lief. 4 1915 No. viii (75-118) 
pis. Ixiii-lxxii. 26 
Walcott, C. D. Middle Cambrian 
Spongiae (Cambrian Geology and Palae- 
ontology. — IV). Washington Smithson. 
Miscell. Coll. 67 1920 (261-364) pis. lx- 
xc. 27 
Wilson, H. V. A remarkable form 
of skeletal element in the Lithistid 
sponges. (A case of analogical resem- 
blance.) Chapel Hill J. Elisha Mitchell 
Scient. Soc. 36 1920 (54-61). 28 
Wilson, H. V. On some generic 
distinctions in sponges. Chapel Hill J. 
Elisha Mitchell Sci. Soc. 35 1919 ( 15 - 
19). 29 
Woodcock, H. M. Porifera. In : 
Zool. Record 55 1918 (1920) (1-4). 30 
II.— S OBJECT INDEX. 
GENERAL, ECONOMICS AND 
TECHNIQUE. 0603 
Bibliography. 
Woodcock, 30. 
Museum Collections. 
O’Connell, 17 ; Topsent, 24. 
( n -13246 li) q 
ANATOMY. 0607 
Skeleton, Spicules. 
Babid, 2 ; Wilson, 28. 
PHYSIOLOGY. 0611 
General. 
Bidder, 5. 
DEVELOPMENT AND GROWTH. 
0615 
Spermatogenesis, Oogenesis. 
Bidder, 4 ; Gatenby, 11 & 12. 
Ontogeny. 
Clarke, 6 & 8 ; Gatenby, 11. 
ETHOLOGY. 0619 
Bionomics, Habits. 
Bidder, 3 & 4 ; P6rez, 18 ; Stephens, 
23. 
Parasitism. 
Mollusca. 
Annandale, 1. 
VARIATION. PHYLOGENY. 0623 
Phylogeny. 
Lameere, 15 ; Wilson, 29. 
D 1ST RIBUTION (GEOGRAPHY ). 
0627 
Geographical (Recent). 
General. 
Krecker, 14. 
Europe.' 
Renonf, 19 ; Stephens, 23 ; Vays- 
sidre, 25. 
Africa. 
Cunnington, 9. 
Geological (Fossil). 
Secondary. 
Musper, 16 ; Richardson & Thaoker, 
20 ; SchCndorf, 21 ; de Stelani, 22 ; 
Vinassa de Regny, 26. 
Primary. 
Clarke, 6-8 ; Walcott, 27. 
b 3-2 
