■556 Scientific Proceedings, Royal Dublin Society. 



process. False legs with rows of denticulate spines (in male) ; ambu- 

 latory legs with a conical process at the extremity of the femur. 



Length of the proboscis, 4 mm. ; of the cephalic segment and 

 trunk, 5 mm. ; of the abdomen, 1 mm. ; of a false leg, 6 mm. ; of an 

 -ambulatory leg of the second pair 12-5 mm. One adult and three 

 immature males of this species were taken by Professor Haddon. 



This species differs from all the known species of the genus in 

 the narrow shape of the proboscis which, after swelling out from 

 its base, narrows for the distal half of its extent. The cephalic 

 segment is more than one and a half times as long as a trunk-seg- 

 ment. It has distinct processes at the front end for the insertion 

 of the chelif ori, giving a bifid appearance. There are processes for 

 the palpi below and in front of the oculiferous tubercle, directed 

 outwards and forwards. The oculiferous tubercle carries well- 

 developed eyes ; it has a few fine spines at its extremity. The 

 lateral processes are rather longer than the breadth of the body ; 

 there is a prominent spine on the extremity of each. The trunk 

 segments are raised into sharp spinous processes at their junctions 

 whence a few minute spines arise ; there is a very prominent spine 

 ^s high as the oculiferous tubercle at the hinder end of the trunk ; 

 a few minute spines also spring from it. The caudal segment is as 

 long as a trunk segment, very slender, slightly enlarged at its 

 rounded hinder end. The chelif ori (PI. xxii. fig. 10) are much 

 reduced, the hand being a mere remnant without movable finger. 

 The palpi are of the form usual in the genus ; the third joint is 

 slightly longer and slenderer than the fifth, which has a very long 

 hair situated about the middle of its length ; the sixth, eighth, 

 ninth, and tenth joints are of about equal length, the seventh a 

 little longer ; all these five are furnished with fine spines and strong- 

 bristles. The false legs have the fourth and fifth joints of equal 

 length, as long as the first three together ; the fourth joint is 

 thickened at its proximal, the fifth at its distal end ; the sixth joint 

 is three-fifths as long as the fourth, thickened, and armed with 

 spines the seventh joint is two-thirds as long as the sixth ; the 

 eighth, ninth and tenth, rather more than half as long as the 

 seventh (PL xxii. fig. 12) ; the last four joints are armed with 

 denticulate spines (PI. xxii. fig. 13) those on the seventh and eight 

 joints in three irregular rows, those on the ninth and tenth in two 

 xows, the spines in the two rows being in the same plane, and 



