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occupying almost half of the lateral surface of the head. Antennae I in 

 males are the same length as the head and first two somites of the pereon; 

 in females they are slightly shorter, the base is shorter, and the length 

 of the 1st segment of the flagellum is equal to the head and somite I of 

 the pereon. In males the 1st segment of the flagellum has parallel upper 

 and lower margins and is evenly truncated at the anterior end, while 

 in females this segment is almost oval; one-two rudimentary segments 

 are situated apically but not well noticeable. Antennae II in males are 

 seven- to eight-segmented and longer than antennae I; in females they 

 are approximately the same in length but six-segmented. 



The somites of the pereon increase in length from I to IV; somite I 

 is very short, II twice longer, III barely longer than II, IV-VI identical 

 in size, and VII identical to somite HI. The pereopods are strong. The 

 2nd segment of pereopods I is the same length as the rest of the leg, 

 its anterior margin slightly convex, and the posterior margin has a small 

 220 prominence in the middle and is twice longer than its maximum width; 

 the 5th segment is barely shorter than the 6th, its anterior margin convex, 

 and the posterior margin straight; the claw is strong and more than half 

 the length of the 6th segment. The posterior distal angles of the 2nd-5th 

 segments bear spines; the distal margin of the 5th segment, posterior and 

 distal margins of the 6th segment as well as the proximal part of the 

 posterior margin of the claw are finely denticulate. The 2nd segment of 

 pereopods II is linear, longer than the distal part of the leg, its length 

 three times its width; the lobe of the 4th segment extends to the base of 

 the process of the 5th segment; the 5th segment is elongated, its length 

 1.5 times the maximum width; its anterior margin is convex and the 

 coarsely denticulate process up to 2/3 the length of the succeeding seg- 

 ment; the 6th segment is shorter than the 5th, its anterior margin convex, 

 and posterior margin denticulate; the claw is half the length of the 6th 

 segment. The 2nd segment of pereopods III has a straight anterior mar- 

 gin and barely convex posterior margin, its length being approximately 

 2.5 times its width and equal to the 3rd-5th segments together; the 4th 

 segment is strong, slightly broadened and twice longer than wide; the 5th 

 segment is shorter than the 4th, its length 1.5 times its width; the slightly 

 curved 6th segment is equal in length to the 4th, the length being four 

 times its width; the claw is strong and barely half the length of the 6th 

 segment. Pereopods IV are similar to pereopods III but all the segments 

 are slightly longer; the claw is 1/3 the length of the 6th segment. The 

 ornamentation of these two pairs of pereopods is weak; solitary sensillae 

 occur on the surface of the segments, denticulation is poorly evident on 

 the distal part of the posterior margin of the 6th segment, and one-two 

 spines occur in the distal part of the posterior margin of the 2nd seg- 

 ment. The 2nd segment of pereopods V is twice longer than wide, with 



