202 



ausser Berücksichtigung geblieben sind. Dass der In- 

 halt auch ohnehin überreich ist, — die Zahl der beschrie- 

 benen Arten ist von 61 (bei Johnston) auf 169 gestie- 

 gt^n — - erhellt am besten aus der nachfolgenden Ue- 

 bersicht: 



Subord. T. Athecata. Hj^droida destitute of triie thecae or 

 protective cases, either foi' tlie polypites or gonophores. 



P'am. 1. Glavidae. Polypites claviform or fusiform, with scat- 

 tered filiform tentacula. 



Clava Gmel. 6 Spec, Tubiclava Allm, 2 Sp.. Turris Less. 1 Sp. 

 (Turr. neglecta Less. mit Clavula Gossü Str. Wr.), Cordylophora 

 1 Spec. 



Fam. 2. HydractinÜdae. Polypides claviform, sessile, with a 

 Single verticil of filiform tentacles round the base of a conical pro- 

 boscis, borne on an expanded and continuoiis crust; the coenosarc 

 naked above. 



Hydractinia van Bened. 1 Sp. 



Fam. 3. Podocorynidae. Polypites sessile with a single verticil 

 of filiform tentacula round the base of a conical proboscis. Coe- 

 nosarc consisting of a uetwork of creeping fibres, clothed with the 

 polypary. 



Podocoryne Sars 3 Sp. (P. prohoscidea n.) , Corynopsis Allm. 

 1 Sp., Cionistes Wr. 1 Sp. 



Fam. 4. Laridae. Polypites with a very small uumber of 

 filiform tentacula, springing from the base of the proboscis, but not 

 forming a circle round it. 



Lar Gosse 1 Sp. 



Fam. 5. Gorynidae. Polypites with capitate tentacula, scattered 

 or in several whorls. 



Coryne Gaertn. 5 Sp., Syncoryne 5 Sp,, Zancla Gegenb. 1 Sp. 



Fam. G. StaurÜdae. Polypites clavate subcylindrical, with 

 true andlfalse tentacula, the l'ormer capitate, and disposed in one or 

 more verticiis; the latter rigid, vvithout capituia and probably ser- 

 ving as tactile organs. 



Cladomeua Duj. 1 Sp, (Cl. radiatum Duj. mit. Coryne stauridia 

 Gosse), Stauridium Duj, (St. productum Wr. mit Coryne cerberus 

 Gosse,) 



Fam. 7, Clavatellidae. Polypites with a single verticil of ca- 

 pitate tentacula surrounding the base of the proboscis, Gonozoids 

 ambulatory (= Eleutheria Kr.). 



Clavatella Hincks 1 Sp. 



Fam. 8. MyriotheÜdae, Polypary solitary, with very numerous, 

 capitate, minute tentacula, scattered over the body. 



