ZOOLOGY. 



The Classification of the Anthomedusan Jelly-Fishes.— 

 Dr. Vanhoffen begins his attempt to arrange the Anthomedusa? 1 with 

 severe criticism of the system of Haeckel and then gives that which he 

 would propose to take its place, an outline of which follows here. 

 The reader will notice the almost iconoclastic manner in which Dr. 

 Vanhoffen relegates genera into synonymy. 



ANTHOMEDUSA. 



Craspedote Medusse with the sexual products in the ectoderm of the 

 stomach [proboscis]. 



I. CODONIDA. Gonads not separate; embracing the proboscis as a 



1. SYNCORYNiDiE (SARSiADiE). Medusse produced from Syncoryne 

 and similar polyps, with regular radially developed umbrella, and four 

 well-developed tentacles. Genera : l,Sanw (including Codonivm and 

 Simdldion), Hydroid, Syncoryne; 2, Dipurena (including Bathyeo- 

 don~), Hydroid ? ; 3, Corynetis, Hydroid, Halocharis?. 



2. PENNARiiDiE, Medusse with Pennaria-like hydroid; regularly 

 developed umbrella and four rudimentary tentacles. Genus: Glo- 



3. Corymorphims, Medusa* with Corymorpha-like hydroid ; um- 

 brella either radial or more or less irregularly bilateral ; tentacles four, 

 two one or none.— Genera : 1, Amalthcea, Hydroid, Corymorpha; 2, 

 Hybocodon (inch Amphicodon), Hydroid, Corymorpha ; 3, Euphysa 

 (including Steenstrupia), Hydroid?; 4, Diconodum, Hydroid?; 5, 

 Ectopleura; Hydroid, Ectopleura. 



II. OCEANIDA. Four or fewer pairs of interradial gonads in the 

 ectoderm of the proboscis. 



A. Ccelomerintha. Strongly contractile hollow tentacles whose 

 small entoderm cells enclose a large lumen. 



4 Amphinemid.e. With numerous marginal lobes like rudimen- 

 tary tentacles between fewer well-developed tentacles.-Genus Stom- 

 atoca (including Amphinema and Codonorchis). 



5. TiaridjE. With numerous well-developed tentacles. Young 

 with two (Binema) or more tentacles between which are seen the soli- 



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