5 Gcel. 
Titles. 
0800 
Nomland, J. 0. New fossil corals 
from the Pacific Coast. Berkeley Cal. 
Univ. Cal. Pub. Geol. 10 1917 (185-190) 
pi. v. 68 
Okada, Yo. Takokurage no undo ni 
tsuite. [On the movements of Mastigias 
phy8ophora .] Dobuts. Z. Tokyo 29 1917 
(389-400). 69 
Okubo, Tadaharu. Hokkaido san 
jujisuiborui ichi shinzoku. (Preliminary 
note on a new genus of stauromedusae 
from Hokkaido). Dobuts. Z. Tokyo 29 
1917 (317-322). 70 
Qpenshaw, A. E. Notes on the re- 
production of Hydra. Rep. Manchester 
Microsc. Soc. 1916 [1918] (46-49). 71 
Oppenheim, P. Ueber Balanophyllia 
porieni, n. sp. aus dem Quartar der 
Strophaden und Stephahophyllia schwein- 
furthi n. sp. aus der obersten Kreide 
von Ober Aegypten. N. Jahrb. Min. 
Stuttgart 1917 1 (1-8) Taf. i. 72 
Oppenheim, P. Ober das Alter der 
Libyschen Stufe Zittel’s und eine neue 
Stephanophyllia (St. schwein furthii n sp.) 
aus der Blatterkonen des Danien in 
A gyp ten. Stuttgart Centralbl. Min. 1917 
(41-48 55-62). 73 
Oppenheim, P. Zur Geologie der 
Strophaden. Stuttgart Centralbl. Min. 
1916 (221-229 254-260) 74. 
Ostenfeld, C. H. Catalogue des 
especes de plantes et d’animaux observes 
dans le Plankton recueilli pendant les 
expeditions depuis le tnois de Juillet 
1908 jusqu’au tnois de Decembre 1911. 
Copenhague Publ. de Circ. 70 1916 
(1-87) 75 
Park, J. On a new species of coral 
from the lower Oamaruian tuffs near 
Deborah, Oamaru. Wellington Trans. 
N. Z. Inst. 49 1917 (396) pi. xxvii. 76 
Parker, G. H. and Titus, E. G. The 
structure of Metridium ( Actinoloba ) 
marginatum Milne-Edwards with special 
reference to its neuro-muscular mech- 
anism. Philadelphia J. Exper. Zool 
21 1916 (433-460) l pi. 77 
Parker, G. II. The effector systems 
of Actinians. Philadelphia J. Exper. 
Zool. 21 1916 (461-484). 78 
Parker, G. H. Nervous transmission 
n the Actinians. Philadelphia J. Exp. 
Zool. 22 1917 (87-94). 79 
(n-4840 i) 
Parker, G. II. The inovemeuts of the 
tentacles in Actinians. Philadelphia J. 
Exp. Zool. 22 1917 (95-110). 80 
Parker, G. H. Pedal locomotion in 
Actinians. Philadelphia J. Exp. Zool. 
22 1917 (111-124). 81 
Parker, G. H. Actinian behaviour. 
Philadelphia J. Exper. Zool. 22 1917 
(193-229). 82 
Parker, G. H. The power of suction 
in the sea-anemone Cribrina. Phila- 
delphia J. Exper. Zool. 24 1917 (219- 
222 ). 83 
Parker, G. H. The activities of 
Corymorpha. Philadelphia J. Exper. 
Zool. 24 1917 (303-331). 84 
Parker, G. H. The responses of 
hydroids to gravity. Washington D. C. 
Proc. Nat. Acad. Sci. 3 1917 (72-73). 85 
Place, J. A. The Morphology, 
structure and development of Rydrac- 
tinia polyclina. Lancaster Pa. Trans. 
Amer. Microsc. Soc. 36 1917 (83-91) 
pis. viii-ix. 86 
Foche, Franz. Ober das System der 
Anthozoa und einige allgemeino Fragen 
der zoologischen Systematik. Zool. Anz. 
Leipzig 46 1915 (6-16 33-43). 87 
Reed, F. R. C. Ordovician and 
Silurian fossils from Yunnan. Pal. Ind. 
Calcutta 6 3 1917 (1-70) pis. i-viii. 88 
Richter, R. Zur stratigraphischen 
Beurteilung von Calceola (Calceola 
8andalina Lam. n. mut. lata und alto). 
N. Jahrb. Min. Stuttgart 1916 2 (31-44) 
Taf. iii-vi. 89 
Robinson, W. J. The relationship of 
the Tetracoralla to the Hexacoralla. 
New Haven Conn. Trans. Connecticut 
Acad. Arts Sci. 21 1917 (145-200). 90 
Roskine, G. La structure des 
prolongements musculaires de la cellule 
epith^lio-musculaire de l’hydre. Paris 
C. R. Soc. biol. 80 1917 (365-366). 91 
Ruedemann, R. Palaeontologic con- 
tributions from the New York state 
museum. Albany N.Y. Bull. State Mus. 
189 1916 (1-225) pis. i-xxxvi. 92 
S&nchez y S&nchez, M. Detalles 
nuevos sobre la estructura de los 
celenteradcs. Madrid Bol. Soc. Esp. 
Hist. Nat. 17 1917 (217-221). 93 
b 1—2 
