ERENNA RICHARDI . 271 



which the supposed species are distinguished. Unfortunately all the specimens 

 in the "Albatross" collection are so fragmentary that I have. been unable to 

 do this. Indeed they have all lost every trace of appendage except a few necto- 

 phores and the pedicles to which the siphons were attached. Specific identifi- 

 cation is therefore impossible, but their position in the genus Forskalia is fairly 

 well assured by the shape of the few remaining nectophores and by the pedicles. 



FORSKALIA species? 



Forskalia was taken at Stations 4665, 4667, 4671, 4683, and 4731, one 

 specimen at each Station. The captures were both from surface hauls and from 

 open net hauls from 300 fathoms. The examples, all of which are violently 

 contracted, range in length from 10-25 mm. 



ERENNA Bedot, 1904. 



The genus Erenna has been recorded only twice, by Bedot ( : 04) who studied 

 detached tentacles, and by Lens and Van Riemsdijk (:08) who were able to 

 figure a fairly complete example, as E. bedoti, from the "Siboga" collection. 

 It is to these authors that we owe our knowledge that the genus is an undoubted 

 Physophore, with the typical structure of nectosome and siphosome, though 

 with peculiar and charactei'istic tentilla. But its systematic • position must 

 remain doubtful until the arrangement of the nectophores has been studied in 

 better material than any yet available. Its closest affinities are apparently 

 with the Forskaliidae where it is classed by Lens and Van Riemsdijk. 



The "Albatross" collection contains a single very fragmentary specimen 

 which must be referred to this genus because of the structure of its tentilla. 

 Unfortunately it has lost all its nectophores, as well as most of its bracts and 

 siphons, while the few that remain are so much crumpled and torn that accurate 

 description is out of the question. Furthermore the stem is twisted and con- 

 tracted. In fact the condition is so bad that it is impossible to state whether 

 or not it is specifically identical with the "Siboga" example. Nor, for that 

 matter, is it clear whether the latter is chstinct from Bedot's E. richardi. 



Erenna richardi Bedot. 

 Erenna richardi Bedot, :04, p. 10, pi. 2. 



Station 4715, in trawl from 1743 fathoms. 1 very fragmentary specimen. 



