2 God.- 
CCELENTERATA. 
histories of Tlydromedusce. Medusa stage more primitive than Hy droid. 
Remote ancestor a solitary swimming Hydra or Actinula , becoming more 
and more natatory and medusoid, without alternation of generations. 
Larva became fixed, budded off Medusce ; gradual degradation to forms 
like IJydractinia. 
^Bcjrmeister, H. Notice sur les Hydromedusce argentince. Ann. Soc. 
Arg. xxi. 
®Canavari, M. Elipsactinia di Monte Gfiano, del Gran Sasso, del 
Gargano e di Gebel-Ersass in .Tunisia. P.-v. Soc. Tosc. v, 
pp. 67 & 68. 
Ciiun, C. Ueber Bau und Entwicklung der Siphonophoren. SB. Ak. 
Berlin, 1886, pp. 681-688. 
Eudoxia stage of Mediterranean Calicophoridce ; doubtful if in any others. 
1. Cuboides vitreus (?), Quoy & Gaimard ; 'Eudoxia cuboides , Leuckart, 
= A byla pentagona , Eschscholtz. 2. Eudoxia messanensis, Gegenbaur ; 
E. campanula , Leuckart, = Diphyes acuminata , Leuckart. 3. Erscea 
truncata, Will ; Diplophysa inermis, Gegenbaur, = Monophyes gracilis , 
Claus. 4. Erscea pyramidalis , Will ; Eudoxia eschscholtzii t Busch, = 
Muggicea koshit, Chun. 5. Erscea elongata, Will, = Diphyes subtilis } Chun. 
The commonest form. 
Claus, C. Ueber Deiopea kalolctenota ) Chun, als Oteuophore der Adrien. 
Arb. z. Inst. Wien, vii, pp. 83-96, 1 pi. 
Description and promorphological discussion of Deiopea kaloktenota , 
found in the Adriatic. 
. Ueber die Classification der Medusen mit Rucksicht auf die 
Stellung der sogenannten Peromedusen, der Periphylliden und 
Pericalpiden. T. c. pp. 97-110, 4 figs. 
Elaboration of system of Acraspeda. I. Tetrameralia , with orders 
Calycozoa and Marmpialia. II. Octomeralia } with order Discophora and 
suborders Catamnata and Acatamnia (Monostomecx. and Ehizostomece). 
Clubb, J. A. List of the Medusce and Gtenophora of the L. M. B. C. 
District. Fauna Liverpool Bay, pp. 114-119. 
Cole. A. C. Spicules of Gorgonia. Stud. Micr. Sci. iv (1886) [see (4), 
p. 7] ; J. R. Micr. Soc. vi (6), p. 1074. 
Preparation of spicules. 
*Dana, J. D. Origin of Coral Reefs and Islands. Am. J. Sci. xxx (1885), 
pp. 89 & 169. 
Danielssen, D. C. The Norwegian North- Atlantic Expedition — Alcyo- 
nida. N. Mag. Naturv. xxx, pp. 81-98. [See 1887.] 
20 new species ; new genera, Voringia , Dri/a, Nannodendron , Fulla , 
Gersemiopsis , Barathrobius. 
Duncan, P. Martin. On the Madreporaria of the Mergui Archipelago. 
J. Linn. Soc. xxi, pp. 1-25, 1 pi. 
13 new species described. 
