422 AuGUSTA Rücker. 



the row of denticles on the distal joints. The number of teeth is 

 seven; tlie flrst tootli far ontstrips the others in size; especially, is 

 this the case on the movable Joint wliich is strongly curved. The 

 proximal Joint possesses the two groups, consisting- of three stiff setae 

 and three comb-like setae on its ventral surface in a diagonal line. 

 Appendages. The remaining appendages are like those of 

 the adult save the first pair of legs. In this appendage: 



1. Second tarsus has one long sensory hair arising from a sac- 

 like base on its upper side. 



2. Fourth metatarsus has a long sensory hair on the upper side. 



3. Second metatarsus has two tactile hairs, one on the upper 

 and one on the outer or posterior surface. 



4. The first metatarsal Joint is lacking in the two tactile hairs 

 which that Joint possesses in tlie adult. 



5. The tibia has one tactile hair on its upper surface near its 

 proximal attachment. 



6. The third metatarsal Joint has on its outer surface and near 

 its distal limit the large flat, hollow seta. 



7. Bifurcated hairs present on both tarsus and metatarsus. 



8. The metatarsus of the last leg has on its posterior surface 

 a hollow stiff hair, slightly larger than the other setae of that Joint. 

 This seta is present thi'oughout all the stages and in the adult. 



Abdomen. On the ventral surface of the fourth, fifth and 

 sixth Segments there are no hing sacs or even any traces of these 

 appendages on the chitinous wall. On the fourth and flfth segments, 

 six small setae are found which complete the whorl of setae ofthose 

 Segments. On the sixth segment there are present four setae, or 

 from their Situation, one might say two pairs of setae. 



Reproductive Appendages. On the ventral surface of the 

 second segment of a live individual or of one killed with weak 

 alcohol there is seen a slight projection of its posterior edge. This 

 projection shows a slight bifurcation along its median line, while 

 on either side but further forward are two pairs of setae. The third 

 segment, likewise possesses an appendage of this character. Each 

 of the two appendages, however, overlaps an aperture instead of 

 surrounding the one orifice, yet it was this that, to a great extent, 

 made me think it was not an immature stage of K. wlieeleri but a 

 sexually mature form. Treatment with potassium hydrate however, 

 revealed a most surprising fact — these orifices were not openings for 

 the emission of the reproductive contents but through them the hing 



