2 CcuL - 
CCELENTEEATA. 
10. [Du Plessis, G.] Catalogue pro visoire des Hydroidea M^dusipares 
(Hydromeduses vraies) observes durant Thiver 1879-80 a la station 
Zoologique de Naples. L. c. pp. 143-149. 
11. D’UkdaN, W. S. M. The Zoology of Barents’ Sea. Ann. N. H. (5) 
vi. p. 253. 
One new species, Sertularella quadricornuta, described by Hincks, tom. 
cit. p. 277, XV. figs. 1 & 1 a. 
12. Fbwkes, J. W. The Siphonophores. 1. The Anatomy and Develop- 
ment of Agalma. Am. Nat. xiv, pp. 617-630, fig. 
13. — Note on the Structure of Rhizophysa filifovmis, P. Bost. Soc. 
XX. pp. 292-303, pi. 
Gives an account of the structure and traces the development of the 
feeding polyps and tentacles. 
14. — . . The tubes in the large nectocalyx of Ahyla pentagona. L. c. 
pp. 318-324, pi. 
Describes and figures the course of the chymiferoua tubes in the large 
swimming bell of Ahyla pentagona and Epibida aurantiaca„ 
15. — — . Contributions to a Knowledge of the Tubular Jelly-fishes. 
Bull. Mus. C. Z. vi. No, 7, pp. 127-14G, 3 pis. 
Describes the development of the tentacular knob of Physophora 
hydrostatica ; discusses the mantle-tubes of Apolemia uoaria and Gleba 
hippopus ; and gives notes on Halistemma, Agalma^ and Agalmopsia, and on 
a few Siphonophorw and Velellidoi from the Eastern Coast of the United 
States. 
1C. FraIpoNT, J. Becherches sur ^organisation, histologique et lo 
developpement de la Gampanularia angulata (Hincks). Arch. Z. 
exper. viii. pp. 433-4G7, 3 pis. (C. R. xc. pp. 43-45 ; Zool. Anz. iii. 
pp. 135-138 ; Guide Nat. 1880, pp. 46 & 46 ; Ann. N. H. 6, v. 
pp. 266-267). 
The author shows that in C. flexuosa and C. angulata the ova are endo- 
dermic in origin, and the spermatozoa ectodermic, as was shown by Bergh 
to be the case in Gonothyrea loveni and by E. Van Beneden in Cam- 
panularia flexuosa^ and concludes that this mode of origin is common 
to the whole Campanularian family. In face of the conflicting opinions 
as to the origin of the generative products from the germinal layers 
in Ccelenterata, researches on individual species in this respect are exceed- 
ingly interesting, though they only tend to show that the place of origin 
varies in dilferent genera, and that it is impossible to follow R. & O. 
Hertwig in their recent assertion that the generative products originate 
from the ectoderm only. 
17. Goette, a. Ein neuer Hydroid-Polyp, mit einer neuen Art der 
Fortpflanzung. Zool. Anz. iii. pp. 352-358. 
18. Granger, A. Invasion des Velelles la plage do Cette. Actes Soc. 
L. Bord. 1879, pp. xlvi, & xlvii. 
