55 



and overhangs an almost straight claw. Pereopods II are similar in 

 structure, but thinner, and the claw is terminal. In pereopods III and 

 IV the claw is well developed but short. Pereopods V are longer than 

 pereopods III and IV; pereopods VI are shorter than V and VII. The 

 basipodite of uropods I is denticulate in the distal part of the anterior and 

 posterior margins; the posterior margin of the basipodite of uropods II 

 is also denticulate; the rami of all uropods are denticulate. The telson 

 is triangular, almost reaching the distal margin of the basipodite of 

 uropods III. 



Distribution: Pacific sector of the Antarctica (71° 41' S, 166° 47' 

 W) in 0-1,000 m catch. 



Absent in our collections. 



SUPERFAMILY LANCEOLOIDEA BOVALLIUS, 1887 



Pereon is equally bulging in both males and females. Antennae I are 

 short in both sexes, not extending beyond the first two-three somites of 

 the pereon. The cutting edge of the mandibles is broad, rarely narrow; 

 the mandibular palp is usually strong, its 3rd segment is shorter than the 

 1st and 2nd together. 



11. Family LANCEOLIDAE Bovallius, 1887 



Medium- or large-sized crustaceans, 8-57 mm in length. The body is 

 cylindrical, massive. All somites of the pereon are free. The head is 

 shorter than or equal in length to somite I of the pereon and may be 

 higher or lower than it. The eyes are usually small, rudimentary, and 

 sometimes inconspicuous, but in the genus Scypholanceola have the form 

 of broad strips lying in large cup-shaped depressions on the sides of the 

 head. Antennae I are stout and short; the peduncle is three- segmented; all 

 segments of the stout broad flagellum, except the three small distal ones, 

 are fused. Antennae II are thin, usually longer, but sometimes (genus 

 Metalanceola), especially in males, shorter than antennae I. 



The mandibles have a broad or narrow (Megalanceola, Prolance- 

 ola) cutting edge but always have a stout three- segmented palp; the 

 accessory cutting plate is always developed to some extent. Maxillae 11 

 are bilobed, usually with narrow, but sometimes broad (Prolanceola) 

 lobes. The maxillipeds are armed with setae; the outer lobes are round; 

 the inner lobes are relatively well developed, separate, rarely rudimen- 

 tary (Metalanceola). The coxal plates are large and free. Pereopods I 

 and II are noticeably shorter than the subsequent ones, their 2nd seg- 

 ment broadened to some extent; the 5th segment is broadened distally 

 (stronger in pereopods I than in pereopods II). Pereopods V-VII, in some 



