14 Cod. 
IV. Ccelenterata. 
[ 1900 ] 
Segmentation of Pennaria Hard la 
and of Tubularia crocea ; Hargitt, 76. 
Re-examination of the cytology of 
Hydractinia and Pennaria (as regards 
maturation, fertilization, early develop- 
mental stages) ; Smallwood, 160. 
Bemerkungen zur Ontogenie der 
Hvdromedusen ; Hadzi, 73. 
Contribution n l’6tude du developpe- 
ment des Lucernarides ; Wietrzy- 
kovski, 189. 
Studies on the development of certain 
fossil Rugose Corals ; Brown, 30. 
Early developmental stages in Recent 
and Fossil Corals ; Grabau, 58. 
Organo- and Histogenesis. 
Bilateral symmetry in the develop- 
ment of the primary septa and mesen- 
teries of the Coral Agaricia fragilis ; 
Mavor, 121. 
Relations entre le mode de developpe- 
ment des septa dans les Tetracorallia et 
dans les Hexacorallia ; Faurot, 45. 
Entvvicklung dor Nesselzelleij bei 
Anemonia ; Moroff, 129. 
Larval forms. 
Ruckgangig gemachte Entvvicklung 
der Ephyren und Scyphopolypen 
einer Scyphomeduse (wahrscheinlieh 
Chrysaora ) ; Hadzi, 72. 
ETHOLOGY, 0819 
Habits: behaviour. 
Beobachtungen an einigen Koral- 
lenthieren ; Kukenthal, 108. 
Rythmes vitaux chez les Actinies ; 
Bohn. 19 
Ptilocodium repens, a new Hydroid 
epizoic on a Pennatulid (Ptilosarcus) ; 
Coward, 37. 
Wirkungsvveise der Nesselkapseln von 
Hydra; Toppe, 178. 
Plankton. 
Mer du Gronland (croisi&re oceano- 
graphique), Siphonophora and Cteno- 
phora ; Damas & Koefoed, 38. 
Die Ctenophoren der deutschen Sud- 
polar-Expedition 1901-1903; Moser, 
132. 
Symbiosis. 
Entry of Zooxanthellae into the ovum 
of Millepora ; Mangan, 120. 
On the association of Kerunia and 
Eupagurus ; Douvill6, 40. 
Parasitism. 
Beziehungen zum Sterleteneies des 
merkvviirdigen Coelenteraten Polypo- 
dium hydriforme ; Lipin, 116. 
Parasitic on Sertulariabidens, Lafoea 
dispolians, n. sp. ; Warren, 186. 
VARIATION AND PHYTOGENY. 
0823 
Variation. 
Sur le polymorphisme (plasticite) de 
Siderastrea radians ; Gravier, 62. 
Phylogeny and Classification. 
On the ancestry of, and relationships 
between a polyp and a sponge ; La- 
meere, 112. 
Phylogenieder Hydromedusen in Be- 
zug auf der Ontogenie ; Hadzi, 73. 
Phylogenese der Ausbildung der 
Thecaphorenstocke ; Kuhn, 104, 
Classification of the Hydroidea Athe- 
cata ; Stechow, 162. 
Relationships and systematic position 
of the genus Tetraplatia ; type of a new 
order of Trachvline Hydromedusae, 
viz., Pteromedusae ; Carlgren, 32 
Classification of the Scyphomedusae 
proposed and outlined ; Bigelow, 13. 
Considerations indicating affinity be- 
tween the Scyphozoan (both Scyphis- 
toma and Acraspedote Medusa) and 
the Anthozoan ; Herouard, 86. 
Phylogeny and classification of Alcyo- 
naria ; Kinoshita, 96. 
Affinities and relationships (allied to 
Actinostola) of a new sub-family 
( Olyphactiniae ) of Antheinae ; Roule, 
155. 
Affinites des Tetracoralliaires et des 
Hexacoralliair.es ; Faurot, 46. 
Phylogenetische Korallenstudien : 
Die Axophylliden ; Grosch, 67. 
