364 Dr. J. G. de Man on a Species of 



closely related to Pal. {EupnL) lonyipes, de Haan, from 

 Japan, and to Pal. [Eupal.) waiter star jji^ Nob., from Surabaya, 

 Java. 



This specimen, which is a male, apparently adult, is 

 118 mm. long from tip of rostrum to the end of the telson; 

 the carapace, rostrum included, measures | of the whole 

 length, viz. 46 mm. The stout large rostrum (PI. XVI. fitr. 1) 

 is lanceolate and reaches to midway between the tips of the 

 antennal scales and those of the spine at the far end of their 

 outer margins. The rostrum rises with a crest just in front 

 of tiie middle of the carapace and projects straight forward ; 

 the upper margin is slightly convex above the eyes and is 

 armed with ten comparatively small teeth, of wiiich three 

 are on the carapace : the distance between the first and 

 second teeth is one third longer than that between the second 

 and third ; the second to eighth teeth are equidistant, but 

 the penultimate tooth is a little farther from the ante- 

 penultimate than are the preceding teeth from one another, 

 and the penultimate tooth is placed also a little nearer to the 

 tip of the rostrum than to the antepenultimate tooth ; the 

 foremost tooth, finally, which is smaller than the preceding, 

 stands close to the tip. In this specimen the tip of the 

 rostrum projects horizontally forward, but Mr. McCulloch 

 wrote rae that in some specimens the point may be a little 

 bent upwards, in others the upper margin of the rostrum 

 may be straight, and he says that the form and the 

 length of the rostrum are variable. The slightly arcuate 

 ascending part of the lower margin bears five equidistant 

 teeth, which are a little smaller than those of the upper ; the 

 first tooth is situated just below the sixth of the upper 

 margin, the fifth just below the penultimate tooth; tlie 

 fifth tooth is therefore a little farther from the point of the 

 rostrum than from the fourth. Whereas the rostrum proper 

 is 19'5 mm. long, it is 5'5 mm. high, only 3^ times as long 

 as high ; it shows therefore a rather stout shape. At the 

 level of the first tooth of the lower margin that part which is 

 situated above the lateral crest appears once and a half as 

 high as that below it. 



Antennular peduncles much shorter than the scapho- 

 cerites, reaching to midway between the fourth and fifth 

 teeth of the lower edge. 



Hepatic spine situated just behind the antennal spine, 

 a little below it. 



By means of a magnify ing-glass one observes here and 

 there on the carapace a few microscopical spiuules of a 

 yellow-brown colour (fig. 1) ; these spinules, only 016 mm. 



