

BY R. VON LENDENFELD, PH.D. 607 



52. GENUS EUTIMALPHES. Haeckel. 



Eucopime, with eight adraclial marginal vesicles and numerous 

 tentacles (12-16 or more). Between them marginal cirrhi. Four 

 Gonads in the course of the four Radial Canals. A long stalk to 

 the stomach. 



Polyp colonies unknown. 



206. EUTIMALPHES PRETIOSA. Haeckel. 



This species, obtained in Australian waters, was described by 

 Haeckel (1). 



IV. SUB FAMILY EUCOPELLIN^l. Von Lendenfeld. 1S83. 



Medusa without stomach, highly developed organs of sense, no 

 tentacles, eight marginal vesicles. Four radial canals, which send 

 branches into the Gonads. 



Alimentary Zooid, with 32 tentacles and a Perisarc. Blastostyle 

 consisting of four radial tubes, between which the Medusae bud. 



Ova formed as in the Campanularinae in the Hydrorhiza. 



53. GENUS EUCOPELLA. Von Lendenfeld. 



Characters of the Sub-Family. The structure, both of the 

 Medusa and the Polyp colonies was investigated by von Lenden- 

 feld (2). 



The Polyps are histologically very highly developed. Sub-epi- 

 thelial muscular and nervous layers were discovered, not only in 

 the Ectoderm but also in the Entoderm. Particularly a ring of 

 nerve-fibres and ganglia cells in the Entoderm of the proboscis. 

 The shape of the chitinous cups varies very much, and there are 

 forms with thick Hydranth cups living in the open sea and such 

 with slender cups in the harbour. The cells in the threads which 

 connect the Coenssarc with the Perisarc are considered as gland- 

 cells which secrete Chitin and occasionally resorb it. 



(1) E. Haeckel. Das System der Medusen. Seite 195. 



(2) Von Lendenfeld. Eucopella Campanularia. Zeitschrift fiir wiss. Zool. 

 Band XXXV1IL, Seite 497. 



