HYDROZOA. 
Ooel 13 
Medusa : Incert^e sedis. Antho- or Narcomedus^. 
Gunther (34) adds the following new genus : — 
^Limnocnida, n. g. Umbrella flat, almost disk-like, about four times as 
broad as high, with a lens-shaped thickening in the middle. Ten- 
tacles very numerous, hollow, with bases partly embedded in and 
aduate to the umbrella margin. Marginal sense organs situate along 
line of attachment of velum, composed of a multicellular mass of 
refringent cells, enclosed in a roundish capsule. Mouth round, two- 
thirds the diameter of tlio animal. Manubrium very short. Stomach 
shallow, of same diameter as mouth. Soxual organs situated on 
the manubrium. 
L. tanganjicce , p. 274. Lake Tanganyika. 
Hydrocorallin,e. 
Hale (36) adds the following new species of fossil Stylasterids : — 
^ Deontopora, n. g. Dactylopores arranged in an arc of about three- 
quarters of a circle round a gastropore at the centre. There are no 
styles visible on a superficial examination in the dactylopores, and 
the presence of the matrix in the gastropores prevented the search 
for them there. 
D. mooraboolemis , p. 117, Gray Clays, Geelong. 
^ Leptobothrus , n. g. The pores are grouped in cyclosystems ; dactylo- 
pores not in radial grooves. 
L. spenceri , p. 120, Eocene, near Geelong. 
RHABDOPHORA. 
Holm (43) describes Dictyonema cervicorne , p. 9, D. abnorme , p. 13, and 
Retiolites nassa , p. 25, from Gotland. 
SIPHONOPHORA. 
Chun (26) adds— 
Monophyes brevitruncata , Orotava, p. 103, which occurs in another form, 
j Diplophysa codonella , p. 105. 
1 Doromasia, n. g. Bell pentagonal, the distal extremity of the sub- 
umbrella cavity being drawn out in a tubular manner. When the 
axial portion of the colony becomes free it developed into an Ersaea. 
D.picta and Ersaea picta, p. 115, Canary Islands. 
D. bojani and Ersaea bojani , p. 132, Pacific Ocean. 
Halopyramis adamantina and Cuboides adamantina ) p. 135, Canary Is. 
Bedot (9) adds Bathyphysa grimaldii , 1294-2000 metres, North Atlantic, 
and gives the following synonym (10) : Forskalia leuckarti , Bed., 
= F. contorta , Leuckart. 
