159 



Page 25. jEtideus armatus, Boeck. 



. I have recently had an opportunity, through the kindness of 

 Prof. Brady, of examining 2 of the Challenger specimens, from which the original 

 description of his ^.Etidetts armatus was made, and cannot find any difference 

 whatever between them and the northern form. For this reason I must consider 

 Brady's and Boeck's species as identical, in spite of the widely-separated localities. 



Occurrence. I found this form last summer not (infrequently at Aale- 

 sund and in the Storfjord, in depths ranging from 30 to 150 fathoms. 



Distribution. Off the Shetland Islands (Scott), Faroe Channel (Norman's 

 Collection), Indian Ocean, Torres Strait, Chinese Sea, South Atlantic Ocean (Brady), 

 Gulf of Guinea (Scott). 



Page 26. The following new genus is to be added: 



iS, G. 0. Sars. 



Generic Characters. External appearance somewhat resembling that of 

 . the front being produced below to a strong bifurcate rostrum. Last seg- 

 ment of metasome, however, well defined from the preceding one, and having the 

 lateral corners acutely produced. Urosome of moderate size, with the caudal rami 

 comparatively short; outermost seta rudimentary, appendicular bristle very small. 

 Anterior antennae slender and attenuated, consisting (in female) of 24 well-defined 

 articulations. Posterior antennae and oral parts nearly agreeing in their structure 

 with those in Chir'nl'mx, the posterior maxillipeds exhibiting a similar slender form. 

 Legs likewise built upon the same type as in that genus. 



Rewind*. This new genus is somewhat intermediate in character between 

 ^Ethleus and Gh'u'uVtus, agreeing with the former in the strongly developed, bi- 

 furcate rostrum, while the structure of the caudal rami and of the several 

 appendages resembles more that of Chiri'lius. The present genus differs from 

 both these genera in the fact that the last segment of the metasome is well defined 

 from the preceding one. The genus comprises as yet only a single species, 

 described below. 



