Mr. J. W. Fewkes on Angelopsis. 155 
tion, which was the first printed account of an Auronectid, 
the revelation * of which group Heckel styles ‘one of the 
most splendid discoveries of the ‘Challenger,’ was the first 
account of these strange Meduse. It was made from poorly 
preserved material and was not intended to be histological or 
anatomical, 
EXPLANATION OF PLATE VII. Fias. 1-3. 
The following letters have the same signification in the three figures :— 
c. Clusters of transparent bodies found in the walls of the float and 
easily seen in alcoholic specimens. They consist of clear spaces or 
“cells” arranged in clusters, rows, or regular figures. 
cav. Lens-shaped cavity of the nectostem below the float. 
cav. p. Cavity of the float. 
cav. 6, Cavity of the polyp-stem. 
f. Floor of the float, separating the cavity of the pneumatocyst 
(cav. p.) from cav, 6., the cavity of the polyp-stem. 
gm. Globular bodies resembling nectocalyces in position, but unlike 
them in structure. gmm. is very much shrunken in preservation, 
gm. is less so and somewhat resembles an ‘‘ aurophore.” 
gm’. Small immature ‘buds,’ which may be undeveloped necto- 
‘calyces. Their true character is not known. 
i, Folds of a cartilaginous plate separating the cavity of the necto- 
stem, cav., and that of the polyp-stem, cav. 6. The figure of these 
folds is a little too regular, and in nature they are more plicated. 
mm. 'Thickened wall ot the polyp-stem through which ramitying 
tubes extend. Several of these tubes are seen longitudinally, 
others, as at ¢, in cross section, 
o. Opening of the bud gm. into the cavity of the float. 
p. Cluster of sexual bells and a single polypite. In fig. 5 a sexual 
bell, s, and a single polypite is shown. 
py. cy. Pneumatocyst or tloat. 
rn. Ridges or elevations, possibly remnants of the attachment of 
nectocalyces. 
Fig. 1. Side view of the larger specimen of Angelopsis. The want of 
symmetry is mainly due to contraction in preservation, The 
specimen is distorted, and probably some of the organs which 
exist in the live animal are lost. 
Fig. 2. Section through the float and enlarged polyp-stem, vertically, 
showing the cavities of the float and body. ‘wo clusters of 
sexual bodies are shown on the left of the figure. From 
the shape of the larger specimen, shown in fig. 1, it is probable 
that the transve se diameter of the polyp-stem is relatively to 
that of the tloat somewhat larger in live specimens than here 
shown. 
Fig. 3. A detached cluster of sexual bodies and a single polypite. This 
cluster was taken from the bulbous polyp-sac of tig. 2. 
Boston, Mass., U.S.A., 
April 10th, 1889. 
* Of the four genera regarded by Heckel as belonging to the Auro- 
necte, Stephalia was taken by the ‘Triton’ Expedition, Stephalia and 
Rhodalia by the ‘ Challenger, and the collector uf Aurala is not men- 
tioned. ‘Tne ‘ Challenger’ increased very greatly our knowledge of the 
possible allies of Angelopsis, which was discovered by the ‘ Albatross,’ 
