8 Gcel. 
XVI. CCE LENTE RATA . 
II. BIOLOGY. 
Physiology of Actinians ; Bjelooussow (9) : feeding of Metridium; 
Parker (86). 
Chemical composition of gorgonin (C 4 H 8 NI0 2 ) from horny axial 
skeleton of Gorgonia cavolinii. Contains iodine, whereas the soft tissues 
do not ; Drechsel (26). 
Gas contained in the pneumatophor of Physalia pelagica differs from 
that found in the swimming bladders of certain fish, in that it does not 
contain any carbon dioxide ; Richard (88). 
Variation in 3917 specimens of Eucope diaphana ; Agassiz & Wood- 
worth (3) : in Lizzia bloudina y Lav sabellarum ; Browne (14). 
Polygastry produced in Sarsia by the reproduction of the manubrium; 
Hartlaub (44). 
Nervous system of Coslentera ; Hickson (47), Lendenfeld (65). 
Skeleton of Madreporaria ; Ogilyie (79). 
Nematocysts, structure, physiology, and development described and 
figured by Iwanzoff (50), who states that he has also observed them in 
the Ctenophor Euchlora rubra. Murbach (75) finds that the thread of 
the nematocyst developes round the nucleus and not round the wall 
of the nematocyst. The cells wander to their destination by amoeboid 
movements. 
Oogenesis in Tubularia larynx ; Doflein (24). Ovum is formed by 
the coalescence of a number of germ-cells. The strongest nucleus over- 
comes the other germ-cell nuclei, and becomes the nucleus of the ovum. 
Development of egg of Ctenophora ; Driesch (28). 
Budding and polymorphism ; Ciiun (21), Seetiger (98), Braem (11) 
considers that the buds of Rathkea octopunctata are formed from 
indifferent cells like the sex cells, which are not ectoderm cells. Braem 
suggests that they may possibly be young germ-cells, which do not become 
ova or spermatozoa, but which come together as indifferent embryonic 
cells, form a morula, and grow direct into a new organism in a way com- 
parable to the analogous process in the Polyzoa . 
Reproduction of Plumidaria pinnata referred to as “ stoloniferous 
Nutting (78). 
Regeneration of Tubularia ; Driescii (27). 
Life-histories of Gonioneinus , Murbach (74), Obelia commissuralis , 
Norton (77), and of several British Medusae, Lar sabellarum , Hybocodon 
prolifer y Phialidium temporarium y P. cy/nbaloideum t Liriantha appendi- 
culata, etc.; Browne (14). 
Swarms : Vanhoffkn (109) notes swarms of Beroe , Physalia y Porpita. 
Bionomics of Zounthus and Gemmaria ; Duerden (29). 
Symbiosis : Palythoa arenacea on Hyaloncma , Bitrupa , and Anti - 
puthcs y Epizoanthus paguriphilus on Parapagurus piloshnanus ; 
Route (89). 
Parasites : Cercaria and Halcampa in Phialidium temporarium ; 
Browne (14) p. 491. 
FAUNXSTIC. 
i. Recent. 
East African Medusae and Siphonophora ; Chun (19). 
Amboyna Bay Siphonophora ; Bedot (7) notes similarity to those of 
Mediterranean. 
Atlantic, Deep Sea ; Roule (89). 
