DUTCH BORNEO-EXPEDITION. 65 



beyond the lateral margin of the carapace, is rather sharp 

 and unarmed ; the aaterior margin is less sharp and the 

 lower border is rounded. The smooth inner surface of the 

 large massive wrist fits close to the antero-lateral border 

 of the cephalothorax and its inner angle is bluntly pro- 

 minent. To the naked eye the upper and the outer sur- 

 face of the wrist appear smooth and shining, but 

 under a lens one observes just the same close micro- 

 scopic granulation as on the surface of the carapace ; 

 in Menippe Panope Herbst, however, granules of large 

 size, similar to those of the outer surface of the hands, 

 are distributed over about three fourth parts 

 of the convex upper surface of the wrist. Near 

 the anterior margin, that articulates with the hand, the 

 granules are a little larger. The upper surface of the wrist 

 is moreover somewhat pitted. Hilgendorf writes me that 

 the hand of the larger leg is one millimeter longer and a 

 little lower than that of the type specimen of Mejiippe 

 Panope Herbst, so that the shape of the hand is not 

 exactly the same. The length measured horizontally is a 

 little shorter than the greatest width of the cephalothorax 

 and the hand is almost twice as long as high. The fingers 

 are somewhat less than half as long as the whole hand, 

 measured horizontally. The lower margin of the palm 

 makes a straight line with that of the immobile finger. 



According to a former information received from Prof. 

 Hilgendorf, the granules on the middle of the 

 outer surface of the hand are, in the species 

 described by Herbst, ^j^ mm. broad and dis- 

 tinctly larger than those of the upper and of 

 the lower margin (confer: de Man, The Journal of 

 the Linnean Soc. of London, V. 22, 1888, p. 43). In the 

 specimen from Sanggau, on the contrary, the convex outer 

 surface of the larger chela is covered with a not quite 

 uniform granulation, distinctly visible, however, to the 

 naked eye ; this granulation is somewhat closer near the 

 upper and near the lower margin of the palm than in the 



Notes from ttie Leyden iMuseum, Vol. JXXI. 



5 



