2 Gcal. 
CQELENTERATA, 
3. Ammon, L. von. Ueber neue Exemplare von jurassichen Medusen. 
Abh. Bayer. Ak. (2) xv. (Also separately, Munchen: 1883, 4to, 
66 pp.) 
4. Blanchard, It. Note sur la matiere colorante bleue du Bhizostome 
de Cuvier. Bull. Soo. Zool. vii. pp. 402-404. (See also Zool. Anz. 
vi. pp. 67-69.) 
The author differs from Krukenberg with regard to the existence of 
cyanein. 
5. Boiim, B. Ueber eine Qualle im Tanganyika- See, mit Bemerkungen 
von E. von Martens. SB. nat. Fr. 1883, pp. 197-200. 
6. Bourne, A. G. Becent Besearches upon the Origin of Sexual Cells 
in Hydroids. A Beview. Q. J. Micr. Sci. xxiii. pp. 617-622. 
7. Brandt, Karl. Dio Fortpflanzung der grfinen Korper von Hydra. 
Zool. Anz. vi. pp. 367-370. 
The author opposes Hamann’s view [infra (21)]. 
8. Brooks, W. K. On the Alternation of Generations in Hydro - 
medusae. J. Hopkins Univ. Circ. ii. p. 73 ct seq. See also Ann. N. H. 
(5) xi. pp. 458 & 459. 
9. *■. Notes on tho Medusce of Boaufort, N.C. Pt. ii. Stud. Biol. 
Lab. J. Hopkins Univ. ii. pp. 465-475. 
10. ‘ Chun, C. Ueber die cyklische Entwickelung und die Verwaudt- 
schaftsverhaltnisse der Siphonophoren. SB. Ak. Berlin, 1882, 
pp. 1155-1172, pi., and Ann. N. H. (5) xi. pp. 153-169. 
The species investigated ( Monophyes primordialis , sp. n.) presents five 
stages in its life-history, some of which have been described as separate 
species : — (1) The planula stage ; (2) Embryo commencing to bud calyx 
and tentacle ; (3) Monophyes primordialis ; (4) Muggicea Jcochi ; (5) 
Eudoxia eschscholtzi. 
11. Claus, C. Ueber das Yerhaltniss von Monophyes zu den Diphyi- 
den, so wie fiber den pliylogenetischen Entwickelungsgang der Sipho- 
nophoren. Arb. z. Inst. Wien, v. pp. 15—28. (Also separately, 
Wien : 1883.) 
12. . Die Epliyren von Cotylorliiza und Rhizo stoma , und ihre Ent- 
wickelung zu achtarmige Medusen. L. c. pp. 169-178. (Also 
separately, Wien : 1883.) 
The author has been able to trace all the stages of the development of 
the Ephyrce. 
13. . Untersuchungen fiber die Organisation und Entwickelung der 
Medusen. Prag & Leipzig ; 1883, 4to. 
14. •. Zur Phylogenie der Siphonophoren. Kosmos, xiii. pp. 692-694. 
15. Cope, E. D. [New Hydroid Polyp, Rhizohydra Jlavitincta, from the 
-Upper Klamath Lake.] P. Ac. Philad. (2). 
A fresh-water Hydroid possessing a coenoecium. 
