10 God. 
CCELENTERATA. 
prove that Metschinkoff ’s view that Nausithoe is a stage in the life-history 
of Stephanoscy phus mirabilis, Allm.,= Spongicola Jistularis , F. E. Schultze, 
is true. This is of great importance, as it places beyond doubt the fact 
that Spongicola belongs not to the Ilydroidea , but to the Acalephce. 
Spencer (82) describes the remarkable new hydroid Clathrozoon, and 
proposes that it should be placed in a new family, Hydrocera tinidce. The 
family, by a combination of remarkable characters, seems to be distinct 
from any known family of Hydroids. 
Anthozoa. 
ZOANTHARIA. 
Danielssen’s important monograph (19) contains a full description of 
several new families, genera, and species, of Sea Anemones. Of special 
interest is the full description of the genera Fenja and Aegir , illustrated 
by numerous figures. 
Faurot (26, 27) states that there are ten distinct pairs of mesenterial 
septa in Peachia hastata. Twelve are large, eight are small and not 
attached to the stomodseum, and there are two pairs of directive septa. 
The septa of the third order are sterile. The same author (28) describes 
the order of development of the septa of Ilalcampa chrysantellum. The 
smaller septa, twelve in number, are all sterile. 
The curious larva described by Van Beneden (5) probably belongs to 
the Zoanthince. The general form of the body is characterised by con- 
siderable elongation, by the existence of six well- developed sarcosepta, 
the total absence of any trace of tentacles round the mouth, and princi- 
pally by the presence of a median vibratile fringe. 
Beraneck (6) remarks that the marginal corpuscles of the Actinice 
are not eyes, but batteries of nematocysts. 
McMtjrrich (68) describes the structure of Cerianthus americanus. The 
largest specimens were 20 cm. long, and 1.5 to 2 cm. in diameter at the middle. 
Twenty-three out of a total of ninety-two mesenteries are well developed. 
The ventral directives are very short, and hardly extend below the level 
of the lower opening of the stomodseum. There are four grades of mesen- 
teries. Three grades are gonophoric, the fourth is not. The specimen 
described was female, and showed no signs of being hermaphrodite. The 
endodermal musculature of the mesenteries consists of a flat layer on each 
side of the mesogloea. No mesenterial stomata were found. 
Fowler (30) describes the anatomy of Duncania , which he finds to be 
a true Madreporarian, differing in no point of importance from the 
ordinary type. He gives a good figure of the soft parts of a species of 
Madrepora , and describes the anatomy of Galaxea esperi , Heteropsammia 
multilobata, and Bathyactis symmetrica. 
Agassiz examined (1) four specimens of corals taken in 1888 from the 
cable between Havanna and Key West, that was laid in 1881, in six to 
seven fathoms of water. The specimens were in average thickness about 
