Vol. XXIV, pp. 77-86 May 15, 1911 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



THE NOMENCLATURE OF THE HYDROMEDUS.dE. 

 COMPILED BY T. D. A. COCKERELL. 



The list given below is compiled from Dr. A. G. Mayer's 

 'Medusae of the World," in the same manner as that of the 

 Scyphomedusse previously published (Proc. Biol. Soc. Wash., 

 XXI V, p. 7).* Like the other list, it has been very kindly 

 scrutinized by Dr, Mayer, who has made a number of sugges- 

 tions. Owing to the difficulties inherent in the classification 

 of the Hydromedusse, the list is to be considered provisional, 

 but as it is based on Dr. Mayer's monograph, while at the same 

 time correcting a number of nomenclatural errors, it should be 

 serviceable. The type-species is cited after each generic name. 



Order ANTHOMEDUS^E. 



Fam. SARSiiDiE [Codonidae]. 

 Subf. Sarsiin^. 



Tribe Pachycordylini. 



Pachycordyle Weismann. 

 napolitana Weismann. 

 Tribe Amalthseini. 



Amalthxa Schmidt. 

 uvifera Schmidt. 

 Tribe Pennariini . 

 Pennaria Oken. 

 pennaria (L.). 



* In the list of Scyphomedusae are a few errors, unfortunately overlooked by me. 

 but detected by Dr. Mayer, as follows: p. 8, read Tesserantha eonnectens; p. 9, read 

 Kishinouyea; p. 10, read Drymonema; p. 12, read Eupilema scapulare. Also for Pe>.& 

 Less, read P6r. & Les. 



19— Proc. Biol. Soc. Wash., Vol. XXIV, 1911. (77) 



