186 MR EDWARD T. BROWNE ON 



The radial canals show a certain amount of variation, especially in the interradial 

 series, and a slight amount of anastomosis takes place near the margin of the umbrella. 



The sense-organs are exactly like those described in the Maldive specimen. The 

 tentaculocysts are at right angles to the margin of the umbrella, pointing towards the 

 ex-umbrella, and stand in a kind of alcove which is at the end of a deep groove open on 

 the dorsal or ex-umbrellar side. It is by the position and structure of the sense-organ 

 that this species can at once be distinguished from Aureha aurita. 



The subgenital cavities are nearly circular, and have a fairly thick covering, with a 

 small circular aperture about 2 mm. in diameter. They are similar in shape to those 

 of the Maldive specimen, but are not so prominent and have not such a thick external 

 wall. The gonads form oval or horse-shoe-shaped bands. They have not reached 

 maturity. 



Jelly-fishes in an unrecognisable condition were taken at the following stations : 



Station 325, Scotia Bay, South Orkneys, 25th March 1903. "Fragments of a 

 Beroe." 



Station 414, lat. 71 50' S., long. 23 30' W. ; 0-1000 fathoms. Vertical net. 

 One Trachomedusa. Fragments of the umbrella of a Scyphomedusa. One specimen of 

 a large Pleurobrachia ? 



Station 415, lat. 71 28' S., long. 22 32' W. ; 0-2338 fathoms. A lump of 

 jelly found in a sounding-tube. 



LIST OF BOOKS AND MEMOIRS QUOTED IN THE TEXT. 



AGASSIZ, L., 1862, Contributions to the Natural History of the United States of America, vol. iv. Boston. 

 BROWNE, E. T. , 1902, "A Preliminary Report on Hydromedusse from the Falkland Islands," Ann. Mag. 



Nat. Hint., ser. 7, vol. ix., pp. 272-284. 

 ,, 1905, " Scyphomedusse " in Gardiner's Fauna and Geography of the Maldive and Laccadive 



Archipelagoes, vol. ii., pp. 958-971, pi. xciv. Cambridge. 

 ,, 1907, "A Revision of the Medusae belonging to the Family Laodiceidse," Ann. Mag. Nat. 



Hist., ser. 7, vol. xx , pp. 457-480. 

 FBWKES, J. W., 1888, "On certain Medusae from New England," Bull. Mus. Gomp. Zool., vol. xiii., 



pp. 209-240, pis. i.-vi. 

 HAECKEL, E., 1879-80, Das System der Medusen. Jena. 



1881, "Report on the Deep-sea Medusae dredged by H.M.S. Challenger during the years 



1872-1876," Challenger Reports, vol. iv. 

 LESSON, R. P., 1830, Voyage autour du Monde . . . sur la corvette "La Coguille" pendant les annees 



1822-1825: Zoologie. Paris. 

 MAAS, 0., 1904, " Me"duses proveuant des campagnes des yachts Hirondelle et Princesse Alice " (1886-1903), 



Result. Camp, scient. Monaco, fasc. xxviii., 71 pp., 6 pis. 



1905, "Die craspedoten Meduseu der Siboga-Expedition," Monograph X., 84 pp., 14 Tafn. 



,, 1906, "Die arktischen Medusen (ausschliesslich der Polypomedusen)," Fauna Arctica, Bd. iv., 



pp. 481-526. 

 ,, 1906, Expedition antarctique Beige " Belgica" : Zoology, "Meduseu," 32 pp., 3 pis. Anvers. 



(ROT. soc. EBIN. TRANS., VOL. XLVI., 250.) 



