312 DE. J. G. DE MAN ON SPECIES OE PAL.EMON 



more or less beyond these peduncles, though still not extending to the tip of the scales ; 

 but in the numerous sj)ecimens of smaller size, the quite young ones, the rostrum usually 

 extends to the extremity of the scales, and even rarely a little beyond them. It has the 

 same form as in the specimens from Liberia and from the lUver Prah that have been 

 described above, and it agrees also with the figures in the paper of Aurivillius {I. c. 

 figs. 1 & 2). The upper margin is sUgJdJy convex above the eyes, and the distal half is 

 directed cloicmcard, but the acute tip is generally somewhat timied upioard ; the rostrum 

 is slender, tapers gradually to a point, and the part situjited above the lateral crest is 

 scarcely higher than that below it. 



In the largest male but one (No. 7) the outer footjaws project with their terminal 

 joint beyond the peduncles of the lower antennJB, just as in the adult male from Liberia; 

 in quite young individuals they overreach these peduncles about three-fourths of the 

 terminal joint. The legs of the first pair project beyond the antennal scales for half 

 their wrist ; this joint is 14 mm. long ; the hands are 7'34 mm. long, and the fingers 

 are very slightly shorter than the palm. Only the left leg (fig. 42) of the second pair 

 is present, and this leg is ajoparently the larger one. The merus reaches as far forward 

 as the antennal scales. When this leg is compared with the larger leg of the male from 

 Liberia, or with the described larger leg of the specimen from the River Prah, the joints 

 appear less stout, being somewhat less broad or thick in proportion to their length. The 

 merus and the carpus are equally long; the former is 5'25 mm. thick, and the diameter 

 of the cai'pus at its distal extremity, measured above, is 6 mm. broad. The palm is nearly 

 as long as that of the larger leg from the River Prah, viz. 35 mm., but only 8 mm. 

 broad instead of 11 mm. ; the palm is 6 mm. thick in the middle. The spinules on the 

 inner side of the palm are somewhat larger than in the individuals from Liberia and the 

 River Prah. The fingers are a little shorter in proportion to the palm, and their tips are 

 less abruptly curved inward than in the specimens from Upper Guinea ; the teeth are 

 typically developed, so that the fingers leave an interspace between them. The legs of 

 the third pair project for half their terminal joints beyond the end of the scaphocerites, 

 those of the fourth reach to the end of the peduncles of the internal antennse, and the 

 last pair is but very little shorter. These legs are thus a little shorter than in the adult 

 male from Liberia, but this may depend upon age ; for the rest, they agree in other 

 characters. 



In the male No. 8 the rostrum is slightly upturned at its distal end and reaches to 

 the end of the antennal scales. The right leg is the larger (fig. 48), but it is consider- 

 ably smaller than in the specimen just descril)ed ; the fingers are but little shorter than 

 the palm and shut close together, as the teeth are still quite small. The dactyJus bears 

 two small teeth between the articulation and the distal tooth ; likewise the immobile 

 finger. The second legs appear quite as slender as in the preceding individual. The 

 merus of the right leg is 3'5 mm. broad, the carpus 425 at its distal end, and the palm 

 is 4'5 mm. thick in the middle. 



In the largest male (No. 6) the legs of the second pair are rather feeble and short, 

 when compared with the two males already described. In both legs (fig. 45) the carpus 

 reaches to the distal end of the scales, and the right leg is but 3 mm. longer than the 



