316 DE. J. G. DE MAN ON SPECIES OE PALJiMON 



heyoucl the acute tip. The anterior pair of spiuules on the upper surface is situated just 

 before the middle of the telson. The external maxillipedes extend for their terminal 

 joint beyond the distal end of the lower peduncles. The carpus (fig. 58) of the first legs, 

 5-33 mm. long, projects for little more than the hands beyond the antennal scales, and 

 the hands are 3 mm. long. The left leg (fig. 59) of the second pair is considerably stronger 

 and longer tlian the right, and extends beyond the antennal scales for three-fourths of 

 the carpus. This leg, 36-5 mm. long, is little shorter than the body, merus and carpus 

 are subequiil in length, and the chela is about twice as long as the carpus. Merus and 

 carpus are swollen, the former in the middle, the latter nearer the distal extremity ; 

 both joints resemble those of the adult male from the E^iver I'rah. The hand also agrees 

 with it, but the palm is less enlarged in proportion to its thickness and the fingers are 

 still closer together. Along the inner margin of the liand is seen a longitudinal row 

 of rather strong spines which gradually decrease in length towards the tip of the fingers, 

 and on the upper surface of palm and fingers spinules occur similar to those on the adult 

 leg from the River Prah, with the soft flexible hairs and the felt also similar. The inner 

 margins of the fingers (fig. 60) are armed along their whole length with small obtuse teeth, 

 fourteen or fifteen in number ; on each finger, however, the third or fourth is conical, 

 acute, and a little larger than the others. 



Tlie other leg (fig. 61) is much shorter and projects for nearly the whole hand beyond 

 the antennal scales. The chela is twice as long as the carpus. The palm is very little 

 broader than the carpus and distinctly shorter than the fingers, that shut close together. 

 Both fingers (fig. 62) bear a sharp cutting-edge, at the end of which one observes an obtuse 

 conical tooth. On the dactylus this edge extends along three-fourths of the finger; on 

 the immobile finger it is a little longer ; posterior to the tooth at the end of the cutting- 

 edge the mobile finger is ai-med with three somewhat smaller, obtuse, equidistant teeth, 

 the index with four that are still smaller. 



In another male (No. 5) of about the same size the rostrum reaches to the end of the 

 scaphocerites ; it is very slightly arcuate above, the distal end somewhat turned upward 

 and —^ dentate. The first ten or eleven teeth stand much nearer to one another than 

 the following, and the sixth tooth is placed just above the orbital margin. The right leg 

 of the second pair is little shorter than the animal and almost once and a half as long as 

 the left. At a third of its length from the articulation the immobile finger of this larger 

 leg is armed with a conical tooth and posterior to it with four very small ones ; between 

 the conical tooth and the tip of the finger one observes ten or eleven rounded teeth which 

 gradually decrease in size towards the tip, and the first of which is but little larger than 

 the four teeth near the articulation. The dactylus bears a similar conical tooth, larger 

 than the others and a little farther from the articulation than on the immobile flnser ; 

 posterior to it there are only three, which are, however, slightly larger than the four of the 

 index, and between this tooth and the tip of the finger ten or eleven small rounded teeth 

 are seen, w^iich again decrease in size. The fingers of the smaller chela are provided 

 with a cutting-edge, at the end of which stands a tooth and between it and the articulation 

 three or four smaller teeth. 



In another young male (No, 7), which has a length of 36 mm., and that as regards its 



