4 Proch. 
XII. Prochordata. 
[1922] 
Molguloides gen. n. for vitrea Sluiter 
(Van Name), Huntsman t.c. p. 221. 
Perophora boltenina sp. n. New Zea- 
land, Michaelsen t.c. p. 488 fig. 35 ; 
P. dellavalle sp. n. Naples, Neppi Pub. 
Staz. zool. Nap. 3 p. 35 figs. 
Polycarpa pegasis sp. n. New Zealand, 
Miohaelsen t.c. p. 450 figs. 25-26. 
Pyrosoma giganteum bacteria in 
luminous organ. Pier antoni 23. 
Styela theeli sp. n. Norway, Arnback- 
Christie-Linde t.c. p. 18 pi. i figs. 5-9. 
Syphonotethis recharacterised, Hunts- 
man t.c. p. 229. 
Theodordla gen. n. p. 417, arenosa p. 
469 fig. 31, torus p. 473, slewartensis p. 
475 figs. 32-33, spp. n. New Zealand, 
Miohaelsen t.c. 
Traustedtia multitentaculcila, Oka 22. 
Ypsilocarpa gen. n., clipeata sp. n. 
Spitzbergen, Arnback-Christie-Linde 
t.c. p. 24 pi. i figs. 14-17. 
CEPH ALOC IIORD AT A . 
Key to families and genera p. 3, list of 
genera and species pp. 4-16, Hubbs 
Occ. Papers Mus. Zool. 105 ; key to 
genera and spp. p. 242, discussion of 
phylogenetic relationships p. 245, Franz 
Zool. Anz. 54 ; revision of Ceylon 
genera and spp., discussion of relation- 
ships, Franz Jenaischo Zs. Natw. 58 
pp. 369-452. 
Epigoniehthyidao fam. n. for Mpigoni- 
chthys and Asymmetron , Hubbs t.c. p. 
14. 
Amphioxides notes, Franz 6. 
Amphioxus gills, etc., Jacobsiiagen 
15 ; spinal cord, Retzius 24 ; eye-spots, 
Studnioka 28 ; oral cirri and associated 
skeleton, muscles, nerves, etc., Ayers 
2 ; hermaphrodite specimen, Riddell 
25. 
Asymmetron list of spp., Hubbs t.c. 
p. 16; revision of Ceylon spp., Franz 
Jenaische Zs. Natw. 58 p. 414 etc. 10 
figs. 
Branchiostoma revision pp. 4-13, B. 
jloridae Florida p. 7, virginiae Virginia 
and Maryland p. 8, bermudae Bermuda 
p. 9, platae Rio de la Plata p. 10, tatter- 
salli Ceylon p. 12, spp. n., Hubbs t.c. ; 
revision of Ceylon spp., Franz Jenaischo 
Zs. Natw. 58 p. 378 etc. 22 figs. ; B. 
haeckelii sp. n. Ceylon, Franz Jenaische 
Zs. Natw. 58 p. 403 fig. 18, and Zool. 
Anz. 54 p. 245. 
Epigonichthys list of spp., Hubbs t.c. 
pp. 14-15. 
Enteropneusta. 
Balanoglossus clavigerus, Stiasny 
Videns. Medd. nat. For. 73 p. 129. 
Glossobalanus marginatus sp. n. North 
Sea, Meek Rep. Dove Marine Lab. 11 
p. 103, and Q. J. M. S. 66 p. 579 figs. 
Tornaria food, Lebour 16 ; T. sp. 
believed to be of Glossobalanus, Meek 
18 ; T. mortenseni sp. n. Japan p. 124 
figs. 1-5; T. tabogae sp. n. (?) Panama 
p. 130 fig. 7 ; T. fxmrnei nom. n. ( ^ T. 
icrohnii Bourne) p. 127 f ig. 6 ; r l\ mutter i, 
krohnii Plymouth p. 129, grcnacheri S. 
Atlantic p. 131 figs. 8-9 ; Stiasny t.c. 
