from the NortJi Sea and aJj'tcent parts. 'Ul 



Gl° 10' N., 2^ 20' E., while the ' Goldsceker's ' corresponding 

 one is 62^ N., 6° 12' VV., and the hauls at these stations are 

 20 and 23 « ith 35 tubes respectively. 



Tliis species is common in British waters as well as in the 

 Atlantic and jNIeditcrrancan. In 1870 the * Porcii[)ine' 

 found it in 795 fathoms in the Atlantic, and in lrS7G the 

 'Challenger' dredged the same form oft' Buenos Ayrcs coast. 

 South America, in GOO iathoms. Marion, one of the French 

 investigators, thought it both rare and small at Marseilles. 

 It, however, extends to the shores of France, Siberia, Norway, 

 Azores, Soutii America, New Zealand, Torres Straits, and 

 Canary Islands, while Moore and Iziika both record it in 

 Japanese waters. 



The outline of the head agrees with that of 0. conchylega, 

 but the frontal tentacles are somewhat longer, contracted at 

 the base, swollen in the mid-region, and more pointed at the 

 tip. Behind are Hve long tentacles, which arise from ringed 

 cirrophores and which are smooth and taper to fairly hue 

 points. The median again is longest. In many specimens 

 there is a pair of eyes situated at the bases of the more 

 posterior lateral tentacles. Eulenstein remarks, *'Auszer 

 bei jungen Exemi)laren war am Grunde der hinteren paarigen 

 Teutakeln je ein Auge zu erkennen " ; but not only are the 

 eyes absent in young examples, but most of the adult speci- 

 mens of this collection do not possess them. Prof. Mcintosh, 

 hoMever, states in his description of this species "No eves,^' 

 and yet pi. Ixiv. figs. 5 & 5a show specimens with eyes 

 present. The palpi are btdbous and have a ventral median 

 furrow. 



The body is typical and is composed of about 130-140 

 segments in the adult condition, Avhile in several youno- 

 forms the number of segments only reached about 50. The 

 dorsum is rounded, while the ventrum is flatter and is 

 traversed by a median groove which is deeper in the anterior 

 region than in the posterior region. The colour is iridescent 

 reddish brown, the hue becoming lighter from before back- 

 ward. In several examples which are laden with ova the 

 posterior region from the thirty-bixtli bristled segment is 

 yellow in colour, due to the masses of ova underlying the 

 thin body-wall. The fir>t segment is narrower than the 

 succeeding and is smoothly rounded from side to side. The 

 body ends in a somewhat flattened tail, the last segment of 

 which is ovoid, with the anus dorsal in po>ition, and from its 

 liiud edge arise two long, slender, anal cirri. 



The proboscis is identical with the description given in 

 the ^lonograph and agrees with the Briiish rather than with 



21* 



