297 



Pycnogonum, but it does not show the couical projectious so cha- 

 racteristic of P. littorale, Ström and P. nodulosum, Dohrn. It 

 has a very thick square-set body, distinctly separated into a pro- 

 boscis, a cephalo-thoracic ring with an obtuse oculiferous tuberele, 

 three thoracic segments and a rather large abdomen. The pro- 

 boscis is of a regular conical shape, its length being exactly half 

 the length of the rest of the body. 



The legs are short: 6.5 mm. in the specimen having the 

 length of body 9 mm. Joint 1 — 3 very short; joint 4 the longest 

 and the thickest; it has an irregular curved shape, swollen at 

 both extremities. Joints 5 and 6 cylindrical , 5 longer than 6. Joint 

 7 is very short , 8 curved , thicker towards the base , tapering 

 towards the extremity, claw curved , strong , about half as long 

 as the 8th joint. The inner margin of the 8th joint is densely 

 beset with short bristles as is the case with P. littorale. 



The colour of this species is a dark brown; the surface is dis- 

 tinctly granular, especially so on the legs. 



The only specimen was taken at: Station 313. January 20, 

 1876. Lat. 52° 20' S.; Long. 68° 0' W. Depth: 55 fathoms. Bottom 

 temperature: 8° 8' C. Bottom: sand. 



APPENDIX 



Ckaetonyniphon hirtum (Kröyer) 



in the southern part of the North Sea 



(Fig. 14—19) 



Chr. Fabricius l ) proposed the name Nymphon hirtum for a 

 species of the genus Nymphon which he observed in the »oceano 

 norvagico". As his description was short and insufficiënt, it was 



1) Chr. Fabricii Entomologia systematica. IV. 1794, p. 41?. 



