36^ 



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

 also from Vadso. Finmark. 



I)itrilnit',,,n. Firth of Forth, Barrow Strait (Th. Scott), Ceylon (A.Scott). 



21. Ectinosoma curticorne, Boeck. 



(PI. XX, fig. 1). 



/>/ "n iusnm >-H,-t'u-oriic. Boeck, Nye Sltegter og After af Saltvandscopepoder. Chr. Vid. Selsk. 



Forh. 1872, p. 45. 



- ('Imrm-trrx. fa-male. Body moderately slender, fusiform in shape, 

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

 i-Miitraeted in front, rostral plate comparatively short and bluntly rounded at the 

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

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

 Nt (if 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 

 -pinex \ery 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 <>t' adult female 0.70 mm. 



/,'< murk*. This form, first recorded by Boeck, may be easily distinguished 

 from any of the preceding species by the unusually short anterior antennas 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 Bmdya Edirftnkii of 

 Ricard is identical with this species. 



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

 under my notice. Tiny 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 Hoerk was also from the Christiania Fjord. Th. Scott, however, records this 

 form from 2 localities of the, Finmark coast, viz., Biigo Fjord and Vadsti. 



/>i~t,-il,,iti,,)i. Scottish coast (Scott), Spitsbergen (Scott). 



