1 Owh 
C(ELENTERATA. 
Hydrozoa and Ctenopiiora, by Alfred Gibbs Bourne. 
Anthozoa, by Sydney J. Hickson^ B.Sc. (Bond.), &c. 
HYDROZOA AND CTENOPHORA. 
1. Allman, G. J. Hydroida of Kerguelen’s Land. Phil. Tr. clxviii. 
pp. 282-^285, pi. Cf. also Ann. N. H. (4) xvii. [1876], p. 116, and 
Zool. Rec. xiii. CccL p. 12. 
Seven species were collected. One is the widely-distributed Sertula- 
rella polyzonias ; the others are new. Only one of these belongs to the 
Gymnoblastic Hydroids. There is one new genus {Hypanthea). Accord- 
ing to the author, there is little about the fauna, as represented by this 
collection, which can be referred to as impressing on it anything of a 
special or characteristic facies. 
1a. Armstrong, J. New Hydroid Zoophytes. J. A, S. B. xlviii. pt. 2, 
p. 98, 4 pis. 
2. Asi’ER, G. Ueber die Hydra der Limmat. Viert. Ges. Zurich, xxiv. 
pp. 1 15-120. 
3. Bergii, R. S. Studien iiber die erste Entwickelung des Eies von 
Gonothyreea lovcni^ Alim. Morph. JB. v. pp. 22-61, 2 pis. 
The development of the egg in Gonothjrcca is described at some 
length ; following this, are some general observations on eggs, in which 
the author classifies eggs according to the changes which occur in the 
germinal vesicle, and the position of the latter during those changes. 
Bergh denies the total disappearance of the germinal vesicle. The 
process of segmentation in is described at length, and followed 
by observations on segmentation in general. 
4. CiiUN, O. Histiologische Bemorkiingcn iiber Ripponquallen. Zool. 
Anz. iii. pp. .‘>29 332. 
The special record of Chun’s work upon the Clcnophora will bo best 
postponed till next year, his elaborate and beautifully illustrated 
nionograph [1880] being the first of the series to be published in connec- 
tion with the Zoological Station at Naples. 
