5\2 TACIO sis()(isi;i;it(i 



bristles, liavo short hiiirs. Along tlic iMistcrior (|ii:iitrr of tlic vciitiiil cdgf of tliis linili tlicic 

 are no bristles at all. Along the ventral third of the posterior edge of tlie liml) tluTc 

 is a series of five rather h>ng bristles with long, .soft hairs. At the middle of the posterior 

 edge of this limb there is a groujt of nine short, bare or almost bare bristles ( the 

 epipodial plate?), rilosity: This limb is partly densely furnished witii liairs botli 

 on the uiedial and the lateral side. 



S e V (■ n t 1\ 1 i m I) (tig. \li): — Almost every ring on the distal part of tin' iiinl) has 

 cleaning bristles both dorsally ami ventrally. The specimen investigated by me had on this 

 limb of one side 60 bristles on one edge and 63 on the other. Proximally there was in most eases 

 only one cleaning bristle on the same side of the same ring, ilistally two or three in most eases. 

 The cleaning bristles are moderately long or rather short; when two or three are found close 

 to each other on the same ring, one is often moderately long and one or two relatively short. 

 Haih cleaning bristle has from one to eight bells which are cut o£E transversally distally; the 

 longer cleaning bristles usually have more than the shorter ones; the tongue of the distal bell 

 is moderately long and is cut off rather transversally distally. Proximally of the bells the cleaning 

 bristles are bare. Each comb of the outer pair consists of about 10 — 14 teeth, all of the same type. 

 These are armed at the middle with rather short secondary spines arranged in two rows; they 

 are somewhat spade-shaped distally, with rounded point and even edge, cf. fig. 14. The number 

 of teett in the inner pair of combs covdd not be ascertained with certainty (it is presumably 

 about the same as is shown in the adjoining figure), nor their type (as this organ was very dirty 

 in the specimen that was investigated). 



F u r c a (fig. 15): — This has ten claws. On the lamella of the right side these decreased 

 fairly uniformly in length the more posteriorly they were placed; no distinct division into main 

 claws and secondary claws could be observed; on the other lamella the four posterior claws were 

 to be denoted as secondary claws. The anterior claws are armed ventrally along the greater part 

 of their length with rather powerful, simple, pointed secondary teeth arranged in two rows; 

 some of these spines are ,, arranged in sequences, one large one and one small one alternately" 

 (G. S. Brady, 1902 a, p. 182), but the difEerence in size is, however, rather slight, and others 

 are of the same strength and size. On the claws situated farther back there is the same 

 armature, but the teeth become weaker and weaker the farther back the claws are situated, those 

 situated farthest back having only a fine pectination. Most of the more powerful claws have, 

 in addition, more or less short, stifE hairs dorsally. At the base of the first and second claws 

 there is a group of short, stifi hairs on the inside. Proximally anteriorly-lateraUy at the fourth 

 to the seventh claws there is a powerful short-haired bristle, which is about a third or a half 

 of the length of the claw. 



Median eye and rod-shaped organ (fig. 16): — These are well developed. The 

 former is bare. The rod-shaped organ is rather long and points upwards. It has two joints, 

 the boundary of the joints being somewhat proximal of half the length; the distal joint is bottle- 

 shaped, its proximal part being somewhat swollen, its distal part narrowing rather decidedly 

 and its point rounded. 



The lateral eyes are well developed. 



