269 



222 



Fig. 109. Vibilia chuni Behning and Woltereck (after Behning, 1925). 



segment. Pereopods V-VI are longer than the preceding pairs due to the 

 greater length of the 6th-7th segments; the 5th segment of pereopods VI 

 bears spines anteriorly; the 6th segment of both pairs is finely denticulate 

 in the middle of both margins. The structure of pereopods VII readily 

 distinguishes this species from others; they are relatively shorter and do 

 not extend to the distal end of the 5th segment of pereopods VL The 2nd 

 segment is broad, with convex margins, the round lobe of its posterior 

 margin reaches the middle of the 4th segment, and the segment per se 

 is notably longer than the other segments together. The 4th segment is 

 square; the 5th and 6th segments equal in length, each being respectively 

 2 and 2.5 times longer than wide; the last segment is narrow, finger- 

 shaped, and shorter than the preceding one. 



