HANSEN: ON SIX SI'ECIKS OF KOENENIA. 239 



Fig. 2 c. Distal jiart of the left leg of the last pair, seen from the front, x 

 116; .r. sensory seta on the metatarsus, ta. tarsus. 



— 2 f. Abdomen in considerably flattened condition seen from below, X 



67 ; /. ventral sacs. 



— 2 g. Complete flagellum, x 58; the joints, especially the ])ro.\imal one, 



somewhat flattened from pressure and many of the very long setas 

 omitted, only their jjlace of insertion being indicated. 



— 2 h. Distal part of the fifth joint and the sixth to eighth joints of the 



same flagellum, x 140; the very long seli\; omitted. 



— 2 i. The three last joints of the same flagellum, x 140 ; only the basal 



part of the terminal seta is drawn, the other very long setK are 

 omitted. 



3. Koenenia angusta n. sp.; female. 



I'ig- 3 ^- frontal sense-organ of the head seen from above, x 430. 



— 3 b. The left group of lateral sense-organs, seen half from alxjvc, half 



from the side, x 430. 



— 3 c. Portion of the large cejdialic sternum with the hairs, x 233. 



— 3d. Right antenna seen from the inner side, x 156. 



— 3 e. Left palpus seen from the outer side, X 156; 111. metatarsus, ta. 



tarsus. 



— 3 f . I^eft leg of the first ]mir seen from the outer side (from Ijehind), 



X 156; III. metatarsus, .f. the stiff seta on the third metatarsal 

 joint. 



— 3 g. Left leg of the third pair seen from the front, x 156. 



— 3 h. Left leg of tlie last pair seen from the front, x 156; in. meta- 



tarsus, J-. its sensory seta, ta. tarsus. 



PL 4. 

 I. Koenenia angusta n. sp,; female ^contin.i. 



Fig. I a. IJody of a specimen with the céphalothorax contracteii, x 50; the 

 basal joints of all appendages, with exception of the three poste- 

 rior ones on the right side, and the proximal joints of the flagel- 

 lum are also drawn. 



— lb. Anterior part of the body of another sjiecimen with the céphalo- 



thorax extended, x So; j-'. frontal sense-organ, s' . lateral sense- 

 organs of the head. 



— I c. Distal part of the right chela, seen from below, x 366. 



— I d. Fourth to seventh abdominal segments, seen from below, x 70. 



— I e. Distal part of the abdomen with five joints of the flagellum, x 



150; third and fourth joints of the flagellum misshapen. 



— I f. Metlian ventral part of second and third abdominal segments with 



tlie genital lobes, seen from below, x 200. 



47 



