4 Proch. 
XIII. Prochordata. [1912] 
Sigl, M, Aquina. Cydoaalpa polae 
n. sp. aus dem ostlichen Mittelmeere. 
Zool. Anz. Leipzig 39 1912 (66-74). 45 
Simroth, H. Ober die Entstehung 
der Tunikaten. Verh. D. zool. Ges. 
Leipzig 22 1912 (116-150). 46 
Sluiter, C. Ph. Lea Ascidiens de 
l’Expedition antarctique fran^aise du 
Pourquoi-Pas ? commands par le Dr. 
Charcot 1908-1909. Bui. Museum 
Paris 1912 (452-460). 47 
Stiasny, Gustav. Die Sandwirbel 
(Faeceshaufchen) des Balanogloasus 
clavigerua Delle Chiaje. Zool. Anz. 
Leipzig 39 1912 (488-492). 48 
II.— S UBJECT INDEX. 
GENERAL. 
Acrania, Tunicata fur 1910; 
Schepotieff, 42. 
STRUCTURE. 
Structure of A aymmetron bassanum ; 
Morris & Raff, 33. 
General structure Megalocercua 
abyaaorum ; KrUger, 28. 
Ober das Gefasssystem von 4m- 
phioxua ; Mofcejko, 34. 
Anatomie der arktischen Ascidien 
(Russ.) ; Redikorcev, 39. 
Nervous system, Salpidae ; Dober, 8. 
Luminous cells, histology, Pyroaoma 
giganteum, Cydoaalpa ; Julin, 25 & 26. 
Hermaphroditism Amphioxus ; Good- 
rich, 9. 
PHYSIOLOGY. 
Blood of ascidians, chemical charac- 
ters ; Henze, 21. 
DEVELOPMENT. 
The organisation of the egg and the 
development of single blastomeres of 
Phalluaia mamillata ; Conklin, 6. 
Organisation and cell-lineage of 
Ascidian egg ; Conklin (1905), 5. 
Entwicklung von Oikopleura dioica ; 
Delsman, 7. 
Embryonic development, Pyroaoma 
giganteum ; Julin, 27. 
Zur Eibildung der Enteropneusten ; 
Maser, 30. 
Ueber Bau und Entwicklung des 
Stolo prolifer der Pyroaomen ; Neumann, 
36. 
Growth and differentiation of chain, 
Cyeloaalpa affinia Chamisso ; Ritter & 
Johnson, 41. 
ETHOLOGY. 
Abyssal Ascidien fauna, composition, 
origin, and horizontal and vertical 
distribution ; Hartmeyer, 15. 
Ascidians from Canadian Coasts, 
biological notes ; Huntsman, 23. 
Dependence of Pyrosomas on currents 
of water and on density of water ; 
KrUger, 29. 
Quantity and adaptation of the deep- 
sea ascidian fauna ; Ritter, 40. 
EVOLUTION. 
Ober die Entstehung der Tunikaten 
Simroth, 46. 
GEOGRAPHY. 
Distribution of species of Cephalodia- 
cua ; Gravier, 11. 
Distribution in the oceans of Copelatae, 
Oikopleura , Stegoaoma , Appendicular ia , 
Pyroaoma , Doliolum, Salpa, Amphi- 
oxides ; Hensen, 18 & 19. 
Zur Verbreitung nordischer Ascidien ; 
Hartmeyer, 16. 
Arctic Ocean. 
Ascidia ; Redikorcev, 39. 
Indian Ocean. ^ , ' 
Madagascar and Seychelles Pandocia 
2 sp. n. ; Michaelsen, 32. 
Atlantic Ocean and Mediterranean 
Sea. 
Atlantic, Pyroaoma Agaaaizi, new to 
this ocean ; KrUger, 29. 
South Atlantic, E. Patagonian Bank, 
Agneaia sp. n. ; Michaelsen, 32. 
