36 



from a depth of about 6 fathoms, muddy bottom. Th. Scott records this form 

 also from Vadso, Finmark. 



Distribution. Firth of Forth, Barrow Strait (Th. Scott), Ceylon (A. Scott). 



21. Eetinosoma curticorne, Boeck. 



(PI. XX, fig. 1). 



Eetinosoma curticorne, Boeck, Nye Slsegter og Arter af Saltvandscopepoder. Chr. Vid. Selsk. 



Forh. 1872, p. 45. 



Specific Characters. Female. Body moderately slender, fusiform in shape, 

 greatest width in front of the middle. Cephalic segment, seen dorsally, evenly 

 contracted in front, rostral plate comparatively short and bluntly rounded at the 

 tip. Caudal rami nearly twice as long as they are broad and slightly divergent. 

 Anterior antennae very short, though composed of 6 well-defined articulations, the 

 1st of which exhibits inside a very conspicuous dark pigmentary patch. Anterior 

 lip with a blunt prominence in front, clothed at the hind edge with long cilia. 

 Last pair of legs well developed, clothed on the lower face with several trans- 

 verse rows of delicate spinules, distal joint somewhat unequally trilobate, apical 

 spines very slender and elongated, setiform, the innermost one longer than the 

 outermost; inner expansion of proximal joint extending about to the middle of 

 the distal joint. 



Colour dark brown or corneous. 



Length of adult female 0.70 mm. 



Remarks. This form, first recorded by Boeck, may be easily distinguished 

 from any of the preceding species by the unusually short anterior antennae and 

 the very conspicuous dusky pigment-patch' inside the 1st joint of the latter. 

 The form of the anterior lip and the structure of the last pair of legs are also 

 rather characteristic. In the opinion of Th. Scott, the Bradya Edwardsii of 

 Ricard is identical with this species. 



Occurrence. Only very few specimens of this form have hitherto come 

 under my notice. They were all of them taken in the upper part of the Christi- 

 ania Fjord in a depth of 6 20 fathoms, muddy bottom. The specimen observed 

 by Boeck was also from the Christiania Fjord. Th. Scott, however, records this 

 form from 2 localities of the Finmark coast, viz., Bugo Fjord and Vadso. 



Distribution. Scottish coast (Scott), Spitsbergen (Scott). 



