257 



Somite I of the pereon is very short, somite II. is twice longer and 

 equal to somite VII, and the remaining somites approximately equal, 

 each being 1.5 times longer than somite II. The pereopods are strong. 

 The 2nd segment of pereopods I is weakly broadened and barely shorter 

 than the distal part of the leg; the posterior margin is uniformly convex 

 while the anterior margin has a small hump in the middle; the 6th seg- 

 ment is longer than the 5th and equal to the 3rd^th segments together; 

 the posterior margin is denticulate except for the proximalmost part; the 

 posterior distal angles of the 2nd-5th segments as well as the anterior 

 distal angle of the 5th and the anterior margin of the 6th segment bear 

 strong spiniform setae; the claw is strong, weakly curved, denticulate 

 posteriorly, and about half the length of the 6th segment. The 2nd seg- 

 ment of pereopods II is longer than the rest of the leg and has uniformly 

 convex margins; the lobe of the 4th segment extends almost to the base 

 213 of the process of the 5th segment; spiniform setae border the lobe poste- 

 riorly and gradually transform at the apex into strong spines with curved 

 ends; the process of the 5th segment is 2/3 the length of the 6th segment; 

 the margins of the process and those of the 6th segment face each other 

 are coarsely denticulate; the claw is strong, curved, somewhat longer 

 than 1/3 the length of the 6th segment and denticulate posteriorly. The 

 2nd segment of pereopods III is equal in length to the 3rd-5th segments 

 together and slightly S-shaped; the 5th segment is 2/3 the length of the 

 4th; the 6th segment is narrow and slightly curved; the claw is almost 

 straight, thin, and more than 1/3 the length of the 6th segment. The pos- 

 terior margin of the 6th segment, except for the proximalmost part, as 

 well as the distal margins of the 4th-6th segments are very finely den- 

 ticulate. Pereopods IV differ from pereopods III only in slightly longer 

 segments. The 2nd segment of pereopods V is slightly broadened, equal 

 in length to the 5th-6th segments together, its length twice its width; the 

 distal part of the anterior margin bears several short spinules and leans 

 over the base of the 3rd segment; the 4th segment is 2.5-3 times longer 

 than wide; the 5th segment is short; the 6th segment narrow and long; the 

 claw is almost straight and 2/7 the length of the 6th segment. Ornamenta- 

 tion is weak: sparse spinules occur on the anterior surface of the 3rd-5th 

 segments and fine denticulation is observed on the distal margin of the 

 4th-6th segments and along the anterior margin of the 6th segment. The 

 2nd segment of pereopods VI is larger than in the preceding pair but the 

 proportions are the same; the 4th and 5th segments are short and mas- 

 sive; the 6th segment is narrow and its length five — six times its width; 

 the distal margin of the 4th and anterior margin of the 5th-6th segments 

 are finely denticulate; the anterior margin of the 5th segment is denticu- 

 late and, moreover, bears five-seven strong spinules; the claw is weakly 

 curved, thin, and 1/3 the length of the 6th segment. Pereopods VII have a 



