478 Uv. E. T. Browne on the Mednscs 



distal end is provided with cells which look like nematocysts. 

 Cordyli proper are without nematocysts, so that these bulbs 

 are more likely to be tentacular bulbs. 



Octorhopalo7i fertilis, von Lendenfeld, 1884, pp. 919, pi. xlii. 

 figs. 14-15. 



This is a little medusa, 2 mm. in diameter, having eight 

 tentacles and eight marginal clubs, and was found by Len- 

 denfeld at Port Jackson, Australia. The description is rather 

 concise and the figures have been badly reproduced, so that 

 they do not help out the short description. The author states 

 that cirri are absent, but nothing is said about ocelli, though 

 in the figure there are indications of an ocellus on the inner 

 side of the basal bulbs of the tentacles. 



The gonads are very large, extending along the whole 

 length of the radial canals and also round the base of the 

 stomach. They are folded transversely. 



Before one can classify this medusa among the Laodiceidse 

 there are two points which require further elucidation. Is it 

 a young stage with gonads just appearing or a fully grown 

 adult ? Are the clubs true cordyli ? The clubs in one figure 

 have the appearance of cordyli lying across the velum ; in 

 the second figure they project outwards and have the 

 appearance of auditory clubsj which should contain an 

 otocyst. 



List of Books and Memoirs quoted in the Text. 



Agassiz, a. 1865. " North-American Acalephae." Catalogue Mus. 



Comp. Zool. Harvard, No. ii. 

 Agassiz, A., and Mayer, A. G. 1889. " Acalephs from the Fiji 



Islands." Bull. Mus. Comp. Zool. Harvard, vol. xxxii. pp. 157- 



189, 17 pis. 

 Agassiz, L. 1849. " Acalephse of North America." Mem. Amer. 



Acad. Arts & Sci. vol. iv. pp. 221-316, 8 pis. 

 . 1860-1862. 'Contributions to the Natural History of the 



United States of America,' vol. iv. Boston. 

 ArEiviLLius, C. W. S. 1896. " Das Plankton der Baifins Bay und 



Davis Strait." Festskriif for Lilljeborg, pp. 181-212. Upsala. 

 Brandt, J. F. 1838. " Ausfiihrliche Beschreibung der von C. H. 



Mertens auf seiner Weltumsegelung beobachteten Schirmquallen.'' 



Mem. Acad. Imp. St, P^tersb. ser. 6, tom. ii. (Sci. nat.) pp. 237- 



411, 31 pis. 

 Beoch, H. 1905. " Zur Medusenfauna von Norwegen." Bergens 



Mus. Aarbog, No. xi. 8 pp. 

 Brooks, W. K. 1895. "The Sensory Clubs or Cordyli of Laodicey 



Journ. Morphology, vol. x. pp. 287-304, pi. xvii. 

 Browne, E.T. 1898. "On British Medusae." Proc. Zool. Soc. 1897, 



pp. 816-835, pis. xlviii.-xlix. 



