ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
491 
gonads. An umbrella-stalk serves for attachment. The genus does 
not seem referable either to the Tesseridse or to the Lucernariidae ; and 
for its reception the author proposes a new family Capriidse. 
Classification of Anthomedusae.* * * § — Dr. C. Hartlaub has some criti- 
cisms on E. Vanhoffen’s division of the Anthomedusae into two families 
(Codonidae and Oceanidae) according to the form of the gonads. Thus, 
the genus Cladonema cannot be ranked, as Vanhoffen places it, with the 
Oceanidae. It should have been ranked with the Codonidae. Van- 
hoffen’s union of the genera Pandaea and Tiara is not justifiable. The 
author has some notes on the genus Turris, and describes a new species 
T. caeca , which closely resembles T. digitalis Forbes. 
A new Hydroid.f — Dr. E. Zoja describes a new genus of Hydroids 
under the name of Umbrellaria , with the single species U. Aloysii. The 
trophosome, which alone is known, has a rudimentary hydrocaul, en- 
sheathed in a rudimentary perisarc. The hydranths have a single 
wreath of (10-15) filiform tentacles and a conical hypostome. There 
is a filiform, branched, prostrate hydrorhiza, and there are two forms of 
nematocysts. 
Porifera. 
Australian Calcarea Heteroccela.J — Dr. A. Dendy has prepared a 
synopsis of the Australian members of this group of Calcareous Sponges, 
in which he proposes a classification, and describes some new genera and 
species. The author’s first family is that of the Leucascidse, established 
for a new genus Leucascus ; in it the long and narrow flagellated cham- 
bers are copiously branched ; they communicate at their proximal ends 
with exhalant canals which converge towards the oscula, and their blind 
distal ends are covered by a perforated dermal membrane. Their 
skeleton consists principally of small radiates irregularly scattered. 
Two species of the new genus have been found near Port Phillip Heads, 
and one of them has also been found at Port Jackson. The second 
family contains Sycetta , Sycon, and Sycantha, and is called that of tho 
Sycettidas. The third family, Granti[i]dae, contains Grantia (with a 
new sub-genus Grantiopsis ), Ute, Utella g. n., Anamixilla, Sycyssa, 
Leucandra , Lelapia , and Leucyssa. The fourth family is that of the 
Heteropidae, the first genus in which, Grantessa of von Lendenfeld, has, 
like some others, its characters emended ; the other genera are dieter opia 
and Vosmaeropsis g. n. The last family Amphoriscidae contains three of 
Haeckel’s genera — Amphoriscus , Syculmis , and Leucilla , with Polejaeff’s 
genus Heteropegma ; the characters of all these four are emended. 
Seventy-eight species are catalogued, sixteen of which are new. 
Sponges of the ‘ Hirondelle.’§— M. E. Topsent devotes his present 
memoir to the Sponges of the North Atlantic. Of the 167 species col- 
lected in the three campaigns of the yacht, 58 are new to science, and 
some of them offer characters which are of value for classification, and 
others present new forms of spicules. Esperiopsis polymorpha is cited as 
an admirable example of polymorphism. 
* Nachr. K. Gesell. Wiss. Gotting., 1892, pp. 17-22 (3 figs.), 
t MT. Zool. Stat. Neapel, x. (1893) pp. 519-26 (1 pi.), 
j Proc. Roy. Soc. Victoria, 1892, pp. 69-116 (from separate copy). 
§ Resultats Scientifiques, &c., ii. (1892) 165 pp., 11 pis. 
1893. 2 M 
