5 Por. 
Subject Index, 
0627 
DEVELOPMENT. 0615 
Entwicklung der Tetractinelliden, 
die Metamorphose von Plakina mono- 
lopha ; Maas, 35 , 
Development, Sycon raphanus ; Ham- 
mer, 18, 
ETHOLOGY. 0619 
Abyssal sponges, Cladorrhiza spp. : 
Topsent, 47. 
Biology Hippospongia equina; Du- 
bois & Allemand-Martin, 14. 
Biological notes on German Spongilli- 
dae ; Weltner, 60. 
Annual history of freshwater sponges 
in India. Comparison of specimens 
taken in India and in Africa in Novem- 
ber ; Annandale, 7. 
EVOLUTION, INHERITANCE, 
VARIATION. 
Origin of regular hexactine; Kirk- 
patrick, 26. 
Einiges iiber Inzucht und ihre Leis- 
tung auf verschiedenen Zuchtgebieten ; 
Chapeaurouge, 13. 
GEOGRAPHY. 0627 
A. Actual. 
European seas and freshwaters. 
Germany ; Distribution of 5 spp. ; 
Liihe, 32. 
Deutschland, Spongillidae, Siisswas- 
serschwamme ; Weltner, 50. 
Suisse, Lac Leman, Spongilla helve- 
lien sp. n. ; Annandale, 3. 
I. of Wight. Records of sponges 
found off the coast ; Morey, 39. 
Asia, freshwaters and coasts. 
Japan, Freshwater sponges, list, 
1 sp. n. ; Annandale, 1. 
Syria, Ephydalia fluviatilis var. n. ; 
Topsent, 47. 
India, Travancore Spongillinae 2 
spp. n. and Tubella pennsylvanica ; 
Annandale, 2. 
Philippines ; Annandale, 5. 
Philippines, Spongilla sp. n. ; Annan- 
dale, 4. 
Arctic Ocean. 
Arctic, Ellesmere Land coast ; Fris- 
tedt, 16. 
Greenland marine sponges, Monaxon- 
ida 6 spp. ; Lundbeck, 33. 
East Greenland, Porifera, list and 
mention of new undescribed species ; 
Lundbeck, 34. 
Spitzbergen, Monaxonida 2 spp., 
Calcarea 2 spp. ; Lundbeck, 33. 
Antarctic. 
Antarctic Monaxonida, 1 sp. n. ; 
Topsent, 45. 
Atlantic Ocean. 
Atlantic, Monaxonida 2 spp. n. ; 
Topsent, 45. 
S. Pacific Ocean. 
Campbell Island, Monaxonida 1 sp. 
Calcarea 1 sp. ; Kirk, 24. 
African seas and freshwaters. 
S. Africa, Freshwater sponges ; Natal 
Spongilla 1 sp. n. ; Annandale, 7. 
Red Sea, Calcarea, list and 6 spp. n. ; 
Row, 40a 
North America. 
Freshwater sponges of N. America in 
the collection of the United States 
national museum ; Annandale, 6. 
Fresh water sponges and particularly 
those of the United States ; Kirsch, 29. 
South America. 
Freshwater sponges of S. America in 
the United States National museum ; 
Annandale, 6. 
Australian seas and freshwaters. 
Australia ; Annandale, 6. 
New Guinea, Ephydatia sp. ; Annan- 
dale, 8. 
West Australia, Tetractinellida 9 
spp. n. Monaxonida 10 spp. and 7 varr. 
n. ; Hentschel, 19. 
B. I'ossil. 
Bartonien, zone du Guepelle, list of 
fossils among which Cliona sp. is the 
only representative of Porifera ; Ra- 
mond, Combes & Morin, 40. 
