BARGMANN1A REVISION 



71 



B 



Fig. 19 Nectophores of A. Bargmannia amoena sp. nov. (magn. 10); B, C. Pyrostephos vanhoeffeni collected by SCUBA (B, magn. 1 lx) and by net (C, 

 magn. 7.5x). 



structures. Since only female gonophores could be identified on 

 submersible collected specimens, this point could not be checked 

 (P.R.Pugh, personal observation). Whether Erenna richardi is 

 monoecious or dioecious remains unknown. Nonetheless, it is of 

 interest to note that, of the physonect species whose female 

 gonophores are known, only those of P. vanhoeffeni and B. amoena 

 contain more than one egg; 3-5 in the former species (Totton, 



1965) and two in the latter. 



The structure of the tentillum is another feature in which close 

 similarities between Bargmannia species and Pyrostephos vanhoeff- 

 eni appear. In both the cnidoband is straight, or slightly twisted, but 

 not tightly coiled, and is without a basal involucrum. In addition, 

 they both have long terminal filaments. Even more striking is the 

 presence of large nematocysts, probably stenoteles, only in the 



