10 EDWARD T. BROWNE. 
In 1892 Dr. Antipa described three new species from the Arctic Ocean, and on 
account of their having gonads in tubular follicles he adopted Haeckel’s name 
Lucernosa for the genus. The species with gonads of a simple structure are left in 
the old genus Lucernaria, and those with a compound structure placed in the genus 
Lucernosa. The new species from the Antarctic belongs to the latter group, owing 
to the structure of its gonads. 
I am not in favour of the splitting up of the species into two genera solely on 
account of the structure of the gonads, especially as the structure of the gonads of 
L. bathyphila forms a connecting link between Lucernaria campanula and Lucernaria 
vanhoeffeni and also Antipa’s species. The Arctic species of Lucernaria and Lucernaria 
bathyphila found in deep water, 540 fms. between Faroe Islands and Shetland 
Islands, are all of great size, and in this respect the new Antarctic species can take 
ifs place along with them. 
Prof. Vanhoffen (1908) has described a new species of Lucernaria under the 
name of L. australis, which was found at the ‘Gauss’ winter station off the 
Antarctic continent at the depth of 385 metres (about 210 fms.). Unfortunately, only 
a single specimen was obtained, and this turned out to be an early stage without 
gonads. It is not likely to be an early stage of L. vanhoeffeni, because it has minute 
rudimentary tentacles, called “conuli” by Vanhoffen, one about midway between 
every pair of arms, and in addition there is no indivation ofsa definite peduncle. 
LUCERNARIA VANHOEFFENI. 
(Plates V., figs. 3-6, and VIL, figs. 3 and 4.) 
Description of the Species—Umbrella campanulate, about as high as broad. 
Peduncle very short. expanding into a very large, broad, flat, adhesive disc ; one 
chambered, with four interradial teeniole terminating in bulbous enlargements without 
muscles. Eight arms, about equal distances apart, with the four perradial bays about 
as wide and deep as the interradial. Each arm with about 300 tentacles, the exterior 
row of which has lateral adhesive pads. Stomach short, and containing branched 
filaments* Mouth with large leaf-like lips. Hight longitudinal bands of genitalia, 
extending from the stomach to the base of the arms; each genitalium composed of 
numerous elongated sacs which have tubular follicles containing gonads. 
Size.—About 60 mm. in height (including peduncle) and 60 mm. in width. 
It is a pleasure to me to associate this new species with the name of Prof. 
Ernst Vanhéffen. 
Owing to the contraction of the arms the umbrella has lost to a slight extent its 
natural shape. The sub-umbrellar cavity is large and spacious. The walls of the 
umbrella are rather thin and have the appearance of being very pliable. The 
ex-umbrella is covered with a thick layer of ectoderm which is opaque and white 
in formalin. 
The peduncle (Plate.V., fig. 3) is remarkable for its shape. It is flattened out 
