2 Gael. 
xyi. CCELENTERATA. 
The Ctenophora collected by the Siboga Expedition are the subject of a 
monograph by Moser (152). Romer (186) writes on Ctenophora from the 
Arctic regions. Vanhoffen too (214) deals with the same group. 
The “Valdivia” Expedition acraspedote and craspedote medusae have 
been described by Vanhoffen (212 & 213) who gives two new genera and 
numerous new species. 
Further publications by Gardiner (74-77) on the Maldives and Lacca- 
dives have been published during the year, mainly concerning the forma- 
tion of the islands, and on the vexed question of the origin of reefs in 
general, as shown by the Maldives. 
Hickson (108) and Pratt (172) give an account of the Alcyonarian 
fauna of the Maldives. 
Bernard (12) has published a monograph on the genus Qoniopora , in 
which he includes the genera Rhodarcea , Tichopora and Litharcea. The 
relations of the genus to Porites is dealt with. He has traced the genus 
to the Cretaceous period, and has followed some of the alterations of its 
distribution. 150 modifications on the primitive type are described, 
illustrating the method of growth and the structure of the calicle, and 
the variations in each of these two chief structural characters ; it is 
shown that there exists some close interdependence between calicle-forms 
and growth-forms. 
A revision of the family Nephthyidoe (Alcyonarians) has been under- 
taken by Kukenthal (126) with diagnoses of genera and spp. and descrip- 
tions of 15 n. spp. 
Dennant (39) contributes four papers on new species of corals from the 
Australian Tertiaries, and d’Ossat (44-46) describes the Miocene Zoan- 
tharia of Central France, and the Tertiary forms from Patagonia. 
A further part has appeared this year from Miss Elles and Miss Wood 
(59) on British Graptolites. 
The Anthozoa of the Eastern Alps are described by Felix (69). 
The histology of Hydromedusce has been worked out in detail by Chun 
& Will (27). 
The question of spermatogenesis in Hydra viridis and Aurelia aunta 
has been considered by Aders (2), and by Gorich (88 & 89). 
Lameere (128) discusses the origin of Ctenophora , and Lang (129) has 
published a monograph on the trophocoele theory. 
Many memoirs have appeared this year on the subject of regeneration — 
these include Barfurth (7 & 8), Child (26), Gast & Godlewski (78), 
Hargitt (100 & 102), Hazen (104), King (118), Morgan (150), Peebles 
(166). 
TITLES* 
1. Adams, C. I., Girty, C. H. & White, 1). Stratigraphy and paleon- 
tology of the Upper Carboniferous rocks of the Kansas section. Bull. 
U. S. Geol. Surv. No. 211, 123 pp. 
2. Aders, W. M. Beitrage zur Kenntnis der Spermatogenese bei den 
Colenteraten. Zeitschr. wiss. Zool. lxxiv, pp. 81-108, 2 pis. i. Uber 
die Enstehung und Ausbildung der Hoden von Hydra viridis. ii. 
Nahrzellen in den mannlichen Gonaden von Aurelia aurita. 
* An asterisk prefixed to a quotation indicates that the recorder has not seen 
the Journal or Work referred to. 
