434 AuGUSTA Rucker, Further Observations on Koenenia. 



ring-like thickening ou the anterior rim of the first segraent of the flagellum 

 (8 oc, 7 obj., 1/2 reduction). 



Fig. 40. Dorsal view of the same showing the dorsal transverse 

 thickening from which the pointed piece of last the abdominal Segment 

 projects. 



Fig. 41. Third metatarsal Joint of the fi^t^t stage, the chitinous wall 

 of which beiug thin permits a clear view of the cnidoblast-like affair, from 

 which the long tacticle hair projects. 



Plate 23. 



Fig. 42. Side view of cephalothorax to show segmentation aud 

 arrangement of its setae as well as the setae on the proximal Joint of the 

 appendages (1 oc, 7 obj., 1/2 reduction). Alcoholic specimen, 



Fig. 43. Sketch of a live male Kocuraia to show segmentation of 

 the animal and the peculiar position often taken in which the abdomen 

 is lifted almost at right angles to the cephalothorax (8 oc, 3 obj., 

 1/2 reduction). 



Fig. 44. Mouth and a portion of the proximal Joint of the left 

 chelicera of the youngest known stage of K. wheelcri (8 oc, 7 obj., 

 1/2 reduction). 



Fig. 45. Mouth of the stage just before maturity with the same 

 raagnification as Fig. 44. 



Fig. 46. Distal joints of the chelicerae of the last stage before 

 maturity. The same condition of these two joints holds for the adult 

 (8 oc, 3 obj., 1/2 reduction). 



Fig. 47. Dorsal view of a living and contracted specimen of adult 

 K. wlicfleri (8 oc, 3 obj., 1/2 reduction). Segmentation of the cephalo- 

 thorax is quite pronounced. 



Fig. 48. Dorsal view of a living and contracted specimen of the 

 adult K. wheeleri (8 oc, 3 obj., 1/2 reduction). The segmentation of the 

 thorax is here quite pronounced. 



Fig. 49. Three quarters view of a living adult Koenenia. In this 

 is Seen the glandulär portion of the intestine or the raid-gut area, which 

 showed perfectly in this clear specimen (8 oc, 3 obj., 1/2 reduction). 



Fig. 50. The abdomen sketched from a living animal in which the 

 ovaries were well developed and quite pronounced. 



Ijippeit & Co. (G. Pätz'sche Buchdr.}, Naumburg a. ?. 



