5,36 



REPORT ON ZOOLOGY, MDCCCXLIV. 



declares this animal to be a Polype as yet immature, which, 

 when full grown, might probably find its position among the 

 Tubularise, since it is a fact that even young Polypes may 

 produce ova and possess eyes; Van Beneden even does not 

 consider it impossible that Eleutheria may be the younger 

 animal of Synhydra,m which conclusion, however, Quatrefages 

 refrains from joining him. Van Beneden, moreover, recog- 

 nises in the Dysmorphosa conchicola, Philip., and Cordylo- 

 phora lacustris, Allrn., his Hydr actinia described in the year 

 1841, and proposes the following classification of the 

 Tubularise : 

 A. Polypes & polypier. 



1. Pennaria, Goldf., tentaculcs de deux sortes, dont les 

 superieurs epars et a plusieurs ran gees. P. Cavolinii. 



2. Tubularia, Pall., tentacules de deux sortes, en deux 

 rangees. 



T. calamaris, Pall., T. coronata, Abildg., T. Dumortieri, 

 V. B. 



3. Syncoryna, Ehrb., tentacules tous semblables, a plusieurs 



rangees. 



S. pusitta, Ehrb., S. Listerii, V. B., S. ramosa, Sars, 

 S. Sarsii, Loven, S. Chamissonis, Ehrb. 



4. Corydendrium, V. B., tentacules tous semblables, epars. 

 C. parasiticum (Sertularia parasitica, Cuv.) 



5. Eudendrium, Ehrb., tentacules en une raugee. 



E. ramosum, Ehrb., E. bnoules, Ehrb., E, splendidum, 

 Ehrb., E. racemosum, Ehrb. 

 B. Polypes sans polypier. 



6. Coryna, tentacules tous semblables, epars. 

 C. sijuainutd, Miill., C. aculeata, Wagn. 



7. Hydractinia, V. B., tentacules i\ une rangee. 



H. lactea, V. B. (Synhydra parasit a, Quatr.), H. rosea, 

 V. B. 



Two interesting memoirs, on the Campamilarise and 

 Tubularise, have also been published by Van Beneden. In 

 the former of which (Memoires sur les Campanulaires de la 

 Cote d'Ostende, in the Memoires de 1' Academic Royale de 



