9 GoeL 
CCWLENTEEATA. 
11. H^ckel, E. Das System der Medusen ; Jen. Z. Nat. xii. Suppl. 
pp. Ixxviii. -Ixxx. Ueber Organisation und Classification der An- 
thomedusen ; ihid.^ pp. cv.-cvii. 
12. Hartmann, R. Zur Anatomie der Cladorema radiatum. SB. Nat. 
Fr. 1877, pp. 17-19. 
[Unknown to the Recorder.] 
13. Heutwig, O. & R. Das Nervensystem und die Siunesorgane der 
Medusen, monographisch dargestellt. Leipzig : 1878, 4to, 196 pp. 
pis. i.-x. (Abstr., Jen. Z. Nat. xii. Suppl. pp. ix. & x.). 
14. . Der Organismus der Medusen und seine Stellung zur Keim- 
blattertheorie. Abh. Jen. Ges. ii. 1, 70 pp. pis. i-iii. (Abstr., Jen. Z. 
Nat. xii. Suppl. pp. xx.-xxv.). 
15. Joseph, G. Resultate seiner in Sylt angestellten Untersuchungen 
von Rhizostoma cuvieri. JB. schles. Ges. Iv. pp. 73 & 74. 
16. Korotneff, a. Histologische Notizen fiber die Myriothela. Zool- 
Anz. i. pp. 363-365. 
17. Meresciikowsky, 0. (a) Studies on the Hydroida ; Ann. N. H. (5) 
i. pp. 239-256, 322-340, pis. xiii.-xv. (b) On Selaginopsis^ Poly- 
serias, and Fericladium ; ibid. pp. 421 & 422. (c) On the mode of 
development of the tentacles in the genus Hydra ; op. cit. ii. pp. 251- 
257. (d) New Hydroids from Ochotsk, Kamtschatka, and other 
parts of the North Pacific Ocean ; ibid. pp. 433-451, pis. xvi. & 
xvii. 
18. Moseley, H. N. On the Hydroid Stony Corals. Zool. Anz. i. 
pp. 336-338. 
19. . On the Structure of the Stylasteridce, a family of the Hydroid 
Stony Corals. Phil. Tr. clxix. pp. 425-503, pis. xxxiii.-xliv. (Abstr., 
Nature, xx. pp. 339-341). 
20. Norman, A. M. Notes on Selaginopsis (= Polyserias hinchsi, 
Mereschkowsky) and on the circumpolar distribution of certain 
Hydrozoa. Ann. N. H. (5) i. pp. 189-192. 
21. Rice, W. N. On the animal of Millepora alcicornis. Am. J. Sci. (3) 
xvi. pp. 180-182, figs. 1-20. 
22. Romanes, G. J. Further observations on the locomotor system of 
Medusae. Phil. Tr. clxvii. pp. 659-752, pis. xxx. & xxxi. 
22. Schafer, E. A. Observations on the Nervous System of Aurelia 
aurita. P. R. S. xxvii. pp. 16 & 17 ; Arch. Z. exper. vii. pp. xxvii. 
& xxviii. 
24. Studer, T. Ueber Siphonophoren des tiefen Wassers. MT. Ges. 
Bern, 1877, pp. 87-96; Z. wiss. Zool. xxxi. pp. 1-24, pis. i.-iii. ; Arch. 
Z. exper. vii. pp. xiii. & xiv. 
Distribution, Biology, &c. 
List of White ^eu Hydrozoa: MereschkowsivV ( 17a), p. 323; it is 
