Mr. J. W. Fewkes on Angelopsis. 155 



tion, which was the first printed account of an Auronectid, 

 the revelation * of which group Ha3ckel styles " one of the 

 most splendid discoveries oj- the ^Challengers ''^ was the first 

 account of these strange Meduste. It was made from poorly 

 preserved material and was not intended to be histological or 

 anatomical. 



EXPLANATION OF PLATE VIL Figs. 1-3. 

 The folio-wing letters have the same signification in the tlu'ee figures : — 



c. Clusters of transparent bodies found in the walls of the tioat and 

 easily seen iu alcoholic specimens. They consist of clear spaces or 

 " cells " arranged in clusters, rows, or irregular figures. 



cav. Lens-shaped cavity of the uectostem below the fioat, 



cav. p. Cavity of the fiuat. 



cav. b. Cavity of the polyp-stem. 



f. Floor of the fioat, separating the cavity of the pneumatocyst 

 (cav. J}.) from cav. b., the cavity of the polyp-stem. 



ym. Globular bodies resembling nectocalyces m position, but unlilie 

 them in structure, (/iimi, is very much shrunken in preservation, 

 </?«. is less so and somewhat resembles an " aurophore.' 



</m'. Small immature "'buds," which may be undeveloped necto- 

 calyces. Their true character is not known. 



I, Folds of a cartilagiuuus plate separating the cavity of the necto- 

 stem, cav., and that of the polyp-stem, cav, h. The figure of these 

 folds is a little too regular, and in nature they are mure plicated. 



mm. Thickened W'all of the polyp-stem through which ramifying 

 tubes extend. Several ot these tubes are seen longitudinally, 

 others, as at t, in cross section. 



o. Opening of the bud ym. into the cavity of the float. 



l>. Cluster of sexual bells and a single polypite. In tig. 3 a sexual 

 bell, s, and a single polypite is shown. 



py. cy. Pneiunatocyst or fiuat. 



rn. Kidges or elevations, possibly remnants of the attachment uf 

 nectocalyces. 



Fig. 1. Side view of the larger specimen of Anyelopsis. The want of 

 symmetry is mainly due to contraction in preservation. The 

 specimen is distorted, and probably some of the organs which 

 exist iu the live animal are lust. 



Fiy. 2. Section thruugh the fioat and enlarged polyp-stem, vertically, 

 showing the cavities of the fiuat and body. I'wo clusters of 

 sexual budies are shown on the left of the figure. From 

 the shape of the larger specimen, shown in fig. 1, it is probable 

 that the trausve se diameter of the polyp-stem is relatively to 

 that of the fioat somewhat larger iu li\ e specimens than here 

 shown. 



Fig. 3. A detached cluster of sexual bodies and a single polypite. This 

 cluster was taken from the buibuus polyp-tac of fig. 2. 



Boston, Mass., U.S.A., 

 April lUth, ltt8y. 



• Of the four genera regarded by Ilaeckel as belonging to the Auro- 

 uecta), iSU^jhalia was taken by the ' 'J'riton ' Expedition, Stephalia and 

 lihodalia by the ' Challenger,' and the collector uf Auralia is not men- 

 tioned. Ihe ' Challenger ' increased very greatly our knowledge of the 

 possible allies of Anyelopsis, which was discovered by the ' Albatross.' 



