CG na NE RAS 
ew n@y ON ARTA 
By Sypney J. Hickson, M.A., F.RS., 
Professor of Zoology in the Victoria University of Manchester. 
(2 Plates.) 
Tue collection of Aleyonaria does not present many very remarkable features. The 
most interesting species is Ceratoisis spicata, which forms an important connecting link 
between the groups of species formerly separated into the two genera Ceratoisis and 
Primnoisis. It is quite unlike any species that has hitherto been discovered. 
Primnoella divergens is an important new discovery, as it exhibits many characters 
of the genus Caligorgia, and may be regarded as a connecting link between the two 
genera. 
Clavularia frankliniana and Aleyonium paessleri were found by the ‘Southern 
Cross’ expedition off Franklin Island. ~It is a remarkable fact that not a single 
specimen of either of these genera was obtained by the Scottish National Antarctic 
Expedition. 
Thouarella antaretica, which was first obtained off the Falkland Islands, appears 
to be a common species in the Southern Seas, 
The only species of Pennatulida found was Umbellula carpenteri, a species dis- 
covered by the ‘Challenger’ expedition and hitherto found only in the South Polar 
seas. Only one specimen was obtained, and this was unfortunately destroyed by fire 
in my laboratory. 
The ‘Scotia’ expedition obtained twenty specimens of Umbellula durissima, but 
not one other specimen of the Pennatulida. 
FAMILY CLAVULARIIDA. 
CLAVULARIA FRANKLINIANA. 
(Plate IL, figs. 20, 21.) 
Clavularia frankliniana, Roule, Rep. ‘Southern Cross’ (1902), p. 290. 
Localities 1.—W.Q., March 21, 1902, 30 yards from ship on Port Quarter. 8 fms. 
a 2.—W.Q., March 21, 1902. 10 fathoms. 
Re 3.—W.Q., March 18, 1902. 10 fathoms. 
8 4.—W.Q., June 15, 1902. 122 fathoms. 
There are many specimens of this species attached to stones, worm tubes and other 
foreign objects. I have little doubt they belong to the same species as those described 
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