6 Ocel, 
IV. Ccelenterata. 
[1919] 
‘ Supplement to the Indices generum 
of Scudder 1882 and Waterhouse 1902 
and 1912 j Stechow, 82. 
Cvboinedusae in Leiden Museum ; 
Stiasny, 83. 
Scyphomedusae of Leiden Museum ; 
Stiasny, 84. 
i STRUCTURE. 080f 
Histology of Antipatharia ; Pax, 74. 
The interstitial cells ' of Hydra ; 
Schulze, 80.- ' 
' PHYSIOLOCiY, OSn 
Xxial gradients in Hydra ; Child & 
Hyman, 16. 
> Axial gradients in Hydrozoa ; Child, 
17. 
Function of cinclides ; Qravier, 38. 
Action of Potassium cyanide on 
coelenterates ; Hyman, 51. 
Cellular degeneration and formation 
of pigment in Hydroida ; Warren, 93. 
Growth rate of corals ; Magor, 65. 
; . DEVELOPMENT. 0815 
General. 
» ,Me8odermio origin of sox colls of 
Coelenteraia ; Dantan, 20. 
Pedogenesis with or without Vivi- 
parity in Actiniaria Gravier, 40. 
L’Origine endodermique des on- 
tdroides chez les Hexacoralliaires ; 
Krempf, 56. 
Origin of directives of Hexacoralla , 
in a primitive biradial stage ; Krempf, 
66 . 
Development of Oorgonacea ; KUken- 
thal,59. 
Early development of Alcyonaria ; 
Moser, 68. 
Ovum and Oogenesis. 
; Migration of reproductive organs in 
Hydra ; Tannreuther, 85. 
i Germ cells and chromosomes of 
€oelenterata \ Hargitt, 41. 
Dovolopmont of soximl organa in 
Actiniaria; Gravier, 39.) 
Begeneration and Experimental. 
Die Bildung u, Riickbildung der 
Ovarien an Hydra ; Goetsch, 34. 
Bildung u. Riickbildung der Hoden 
an Hydra ; Goetsch, 33. 
ETHOLOGY. 0810 
Langsteilung bei Hydra ; Wachs, 91. 
• Clava krempf i parasitic in Alcy- 
onium ; Billard, 10. 
Effects of winter 1917-18 on Sugar tia 
luciac ; Parker, 73. 
Sagartia luciac ; Hausman, 43. 
Growth rate of Pacilio coral reefs ; 
Mayor, 65. 
Corals ; Vaughan, 88. 
Migrations of CJtenophores and 
Coelenterates on W. Coast N. America ; 
Fraser, 30. 
VARIATION AND PHYLOGENY. 
0828 
Variations in Aglaophenia pluma ; 
Bedot, 6. 
Variation of Tiaropsis multicirraia ; 
Kramp, 55. 
Variation in Ajiemone hepniica ; 
Galant, 31. 
. Phylogeny of Antipatharia; Pax, 
75. 
X)ie Stammegeschichte der PlexaU' 
ridae ; Kukenthal, 68. 
DISTRIBUTION. 0827 
1. Geographical. 
A. — Marine. 
General. 
Distribution of Antipatharia ; Pax, 
75. 
Atlantic (including Mediterranean). 
Firth of Clyde, Anthornedusac ; Dick, 
21 . 
Hydroida ; Crallan, 19. 
Coelenteraia ; Garstang, 32. 
, Coelenterates of Port Erin ; Herd- 
man, 47. 
Medusae ; Kramp, 55. 
Spooios of Favia ; Mallhai, 64. 
’ Hydroida ; Stechow, 81. 
