from the North Sea and adjacent parts. 177 



Genus Antintoe, Kliiberg, 1857. 

 Antiuoe sarsij Malmgren, 1805. 



Only one anterior fragment of 6 mm. length was taken. 

 It occurred in the same haul as Evarne johnstom. Furtiier 

 investigation may prove some kind of a relationship to exist 

 between the two forms. They have occurred together in 

 different collections. 



Theel (1879, p. 18) gives Antinoe sarsi (Klnherg), Malm- 

 gren (excluding Malmgren's " nondum adult " form from 

 Spitsbergen), as a synonym of his Polynoe badia, which is, 

 however, more likely to be the same form as Antinoe elegans 

 (below). 



Antinoe elegans, Theel, 1879. 



Th^el (1879, pp. 20-22, pi. i. figs. 13-16) instituted the 

 genus Bylgia and the species elegans for one annelid procured 

 in the Sea of Kara at a depth of 34 m. Levinsen (1883, 

 p. 88) mentions this form [Bylgia elegans). No further 

 records of it have been found. 



Tiie present examples are a single specimen from 61° 27"' N., 

 1° 47' W., and one complete specimen and several fragments 

 from 60° 36' N., 4° 46' W., at depths of 1240 m. and 1030 m. 

 respectively. It is worthy of note that in both hauls Eunoa 

 tj'itoni, M'l., was included. 



Th^el characterized the genus Bylgia thus : — " Lobus 

 cephalicus antice in prominentias non productus. Antenna3 

 e parte anteriore lobi ceplialici productse. Tentaculum nullum. 

 Elytra paria 15, totum doi'sum tegentia, in segmentis 

 setigeris, 2, 4, 5, 7, 9 ... . 23, 26, 29, 32." 



Unfortunately no elytra are in situ, but it is easy to 

 establish the fact that Theel's numbers of the elytra-bearing 

 segments correspond exactly to those of the present specimens. 

 The broadest part of the body is from the middle of its 

 length forward to the seventh segment. The anterior seg- 

 ments decrease little in breadth ; the posterior half of the 

 bod^' tapers distinctly towards the last segment. According 

 to Theel the body is everywhere of the same breadth ; that 

 may be so in large specimens. The setigerous segments 

 number 37. 



Th(5el''s specimen measured 59 mm. without and 74 mm. 

 with the proboscis. The complete specimen of the present 

 collection measures only 46 mm. 'n\ length, and none of the 

 fragments indicate a form as large as 59 mm. 



Only one of the specimens — and that a doubtful Antinoe 



