260 





mens, and have thereby convinced myself, that this form is in reality a true 

 member of the present genus, in spite of the somewhat anomalous appearance 

 of the shell. It is much the largest of the species known to me. The form 

 recorded by Brady under the above name is not this species, but unquestion- 

 ably that next described. 



Occurrence. The 2 empty shells originally examined were found by my 

 late father in shell-sand from 0xfjord, West Finmark; those subsequently 

 obtained were, as far as I remember it, taken off the Lofoten islands in a few 

 fathoms' depth. 



Distribution. Apparently not yet known out of Norway. 



146. Paradoxostoma Bradyi, G. O. Sars (new name). 



(PI. CXVIII, fig. 1). 



Paradoxostoma obliqvum, Brady, Mon. Brit. Ostracoda, p. 459, PI. XXXV, figs. 1821 



(not G. O. Sars). 



Specific Characters. Female. Shell more tumid than in the other known 

 species, seen laterally, short oval in shape, greatest height a little behind the 

 middle and considerably exceeding half the length, dorsal margin evenly arched 

 throughout, ventral very slightly sinuated in front of the middle and gently 

 bowed behind, anterior extremity obtusely rounded off at the end, posterior 

 produced a little above the middle to a short protuberance well defined both 

 above and below; seen dorsally, regularly oblong oval in outline, with the 

 greatest width nearly equal to half the length, both extremities obtusely pointed. 

 Valves of rather firmer consistency than in P. obliqvum and only slightly 

 pellucid, surface perfectly smooth and almost bare from hairs, marginal zone 

 narrow, with no sharply-marked pore-channels. Anterior antennae rather pro- 

 longed, with the 2nd joint of the terminal part fully twice as long as the 1st. 

 Posterior antennae resembling in structure those in P. obliqvum, except that 

 the dividing suture of penultimate joint is located somewhat above the middle. 

 Maxillae with a distinct rudiment of palp in the form of a simple curved seta 

 issuing from a somewhat thickened base, innermost masticatory lobe compara- 

 tively more fully developed than in the type species, with 3 apical setae. Legs 

 of the usual structure. 



Colour of shell in the living animal not yet ascertained; but in the 

 preserved specimens examined by me there are distinct traces of 3 transverse 

 dark bands, one in the middle and one at each extremity. 



Length of adult female 0.68 mm. 



Male unknown. 



