4ll«i r \(ii: SKllf.SHKKC. 



First ant c n n a: — Tin* .sensory hristli' nf the (il'tli joint has seven sensorial fila- 

 nu-nts. lt*i enil joint has seven bristles, as both the d- and the e-l)ristle are well (h'veloped (tln' 

 d-bristle is, however, di.stinttly weaker than the e-bristle). 



.Mandible: — I'rotopoclite: First joinl : Tlu' rod-shaped j)r()cess ol the cnditf has 

 three or four short, iiowerful spines distally. Sccmnl jnlni : The l)a(k\\:ir(l pniniinu process: 

 The triaena bristles have relatively iniinerous (;> — 15 pairs) secondary spines proxinially ol the 

 distal pair of spine.s. Two dwart bristles are developed on this process. On the middle 

 of the dorsal side of this joint there are a number of bristles. l<]iido]K)dite: The second 

 joint has from two to four proximal bristles and one long, narrow bristle, with short, 

 tine hairs, between the b- aiul <■- main bristles. 



S e V e n t ii 1 i m b: — This has rather numerous cleiinint!; bristles. The teeth oi' tlie 

 end combs are Hnely and evenly pectinated. 



The m e d i a n e y e is bare. 



The m ale is unknown. 



To this group belong — at least with complete certainty — only two of all the .species so 

 far described; these are described by me below: 



A. quinquesetae and 



,, spinifera. 



For A. australin, G. S. Bhady, 1890, cf. remark imder A. spinifera, p. 483 below. 



Miilleri group: 



Female: — Shell: — Seen from the side, this is rather high and short, somewhat 

 pear-shaped, with the posterior part rather strikingly larger than the anterior one. 



First antenna: — The sensory bristle of the fifth joint has six sensorial filaments. 

 Its end joint has only six bristles, as of the d- and e-bristles oidy the latter is well developed. 

 the former being represented by a very small verruciform process. 



Mandible: — Protopodite: First joint: The rod-shaped process of the endite 

 is fiirnished distally with three short, fine points. Second joint: The triaena bristles of the 

 backward pointing process have rather few (from one to six pairs) of secondary spines 

 proximally of the distal pair of spines. Only one dwarf bristle is developed on this 

 process. There are no bristles at all on the middle of the dorsal side of this joint. Endopodite: 

 The second joint has one proximal bristle and one long, narrow bristle, with short, fine hairs, 

 between the b- and c-niain bristles. 



Seventh limb: — This has twelve cleaning bristles, six of which are situated near 

 the point of the limb, three on each side and six somewhat proximally of these. The teeth of 

 the end combs are variously equipped, the most distal ones having considerably stronger and 

 fewer secondary teeth than the proximal ones. 



The median eye has short, fine hairs. 



The males are practically unknown. According to a statement of t^. S. BiiADV's, 

 however, at least one species has abundant sensorial filaments on the sensory bristle of the fifth 

 joint of the first antenna. 



The following species of those investigated by me belong to this group: 



