ANTHOMEDUS.E SLABBERIA. 



79 



Slabberia ophiogaster. 



Sarsia strangulate, ALLMAN, 1871-72, Monograph Tubularian Hydroids, p. 46, fig. 17. 



Dipurena ophiogaster=Tetrapurena ophiogaster, HAUCKEL, 1879, Syst. der Medusen, p. 25. 



Dipurena ophiogaster ( ?), BROWNE, 1905, Pearl Oyster Fisheries, Gulf of Manaar, Roy. Soc. London, Suppl. Report 27, p. 133, 



plate 2, figs, i, 2 (from Galle Bay, Ceylon). 

 Purena strangulata, HARTLAUB, 1907, Nordisches Plankton, Nr. 12, p. 55, figs. 51-53. 



This medusa is found off the southern coasts of England and Ireland, and an apparently 

 identical species is described by Browne from Ceylon. Dr. Lobianco kindly permitted me 

 to study a specimen, which I consider to be of this medusa, from Naples, Italy. 



For details, see tabular description of the medusae of Slabberia. 



FIG. 36. Slabberia ophiogaster. Drawn by the author, from a specimen collected by Dr. Lobianco in the Bay of Naples. 

 FIG. 37. "Purena strangulata" (5. ophiogaster), after Hartlaub, in Nordisches Plankton. 



In the specimen in Dr. Lobianco's collection from Naples, the bell is 5 mm. high, 4 mm. 

 wide; oval, with thick walls. The manubrium is 13.5 mm. long and has 2 gonads, one in the 

 middle of its length and one adjacent to the stomach. The 4 tentacles are each 2.5 mm. long, 

 and their outer halves taper to a point and are covered with broken, partial rings of nettle- 

 cells. The proximal halves of the tentacles are smooth and cylindrical. The tentacle-bulbs 

 are swollen below the bell-margin and have ocelli. 



Slabberia pyramis. 

 Baltivcodon pyramis, HAECKEL, 1879, Syst. der Medusen, p. 26. 



This Mediterranean medusa is distinguished from other species of Slabberia by the 

 terminal "suction cups" upon its tentacles and by the numerous "glandular" organs which 

 line the sides of the radial-canals. For details see the tabular description of medusae of 

 Slabberia. 



