BRACHYOKA. RATHRUN. 149 



Description of the male. The males have such a different 

 aspect from the females that on first examination they 

 were thought to be a different species. The males are 

 larger but are not more convex with the increase in size; 

 the additional width forms a flattened, and in the widest 

 part, even a slightly upcurved rim, which adds to the 

 appearance of moderate convexity. The median tooth of 

 the front is more deflexed than in the fema.le, and in the 

 smaller of the males is invisible in dorsal view. The 

 spacing of the antero-lateral teeth is not just the same as 

 in the type female, but neither does it correspond in the 

 two males. 



The details of the antennal and buecal areas and of the 

 chelipeds and legs are the same in the two sexes, excepting 

 that the upper border of the palm has always two, in one 

 case three, tubercles. In the larger male the propodus of 

 the right last leg shows three spinules in place of the 

 customary two. In the smaller male the right penultimate 

 leg and the left last leg are abnormally reduced and the 

 latter is devoid of a spine on the dactylus. 



The sixth segment of the abdomen has a shallow sinus 

 in the lateral margins. 



Relationship. Allied to D. cranioides, de Man,- 3 which 

 is more rotund, with furrows very ill denned, lateral teeth 

 of front smaller, no tooth or spine at outer angle of orbit, 

 antero-lateral margin bent down so that it is directed 

 towards the suborbital tooth, and there is no spine on 

 dactyl of last leg. 



DROMIDIA INSIGNIS, sp. nov. 

 (Plate xl., figs. 2-3.) 



Type-locality. South and south-west of Mt. Cann, Vic- 

 toria, 70-100 fathoms; K6112; one female, holotype. 



Measurements. Female, length of carapace on median 

 line 16.6, width 17.5 nun. 



Description. Surface, except on portions of the fingers, 

 covered with a coarse, spatuliform pubescence, which is short 

 and close, except on the abdomen and maxillipeds and the 

 margins and ridges of the carapace and legs. Carapace very 



23 de Man Journ. Linn. Soc. London, Zool., xxii., 1888 n 208 

 pi. xiv., figs. 6-8. 



