188 DE. J. G. DE MAN ON THE PODOPHTHALMOTTS 



sucli specimens they are a little more elongated, being pre- 

 cisely twice as long as broad, and tbe fingers are a little longer 

 in proportion to the length of the palm ; in other respects the 

 hands of these male specimens perfectly agree with those of the 

 type. 



The hands of the female are smaller than those of the male, 

 and closely resemble those of the foregoing variety. The hands 

 of the female are a little more than twice as long as high, and 

 the fingers are a little longer in proportion to the palm than in 

 the male ; otherwise they present the same structure. 



The ambulatory legs are similar to those of S. intermedia, the 

 joints being enlarged, whereas in S. sinensis they are much more 

 slender. Thus the meropodites of the first pair are not quite 

 twice as long as broad, the proportion of the length of these 

 joints to their breadth (near the distal end) being as 11 : 6. 

 The other joints also completely resemble those of 8. intermedia. 

 The dactylopodites are somewhat spinulose and hairy along their 

 inner (= posterior) margins. 



Dimensions of the largest specimens : — 



millim. millim. 



Distance between the extraorbital teeth . . 20^ 19| 

 Length of the cephalothorax (the front 



included) 18| 17^ 



Breadth of the front, measured between 



the eyes 11| 10| 



Sesarma Edwardsi is evidently a common species. It is most 

 closely allied to 8. intermedia, but may be recognized by the 

 enlarged abdomen of the male, and by the structure of the 

 chelipedes, the wrist being armed with a small, acute, depressed 

 tooth at the internal angle, and the inner surface of the palm 

 being not armed with a transverse granular crest. 



102 a. Sesaema Edwaedsi, var. ceassimana, n. (PI. XIII. 

 figs. 5-6.) 



The collection contains eight specimens (5 6", 3 $ ) of a 

 Sesarma collected on the mangrove-swamps of Zediwon, which I 

 regard as a variety of the preceding species. These specimens 

 differ from the type specimens of 8. Edwardsi, above 'de^ribed, 

 in the following characters. The front is a little larger, the 

 proportion of the distance between the extraorbital teeth to the 



