80 



and also close to L. clausi. This group includes the species considered 

 below, viz., L. longidactyla, L. sphaerica, and L. chelifera. All these are 

 characterized by small size, more or less broad pereon, short and broad 

 pleon, and relatively short antennae and pereopods V-VII. 



70 Lanceola clausi clausi Bovallius, 1885 (Fig. 16) 



Bovallius, 1885b: 8, 1887b: 40; Sars, 1900: 15; Shoemaker, 1945a: 

 209; Vinogradov, 1962: 10. 



Length of sexually mature individuals in our collections 10-16 mm 

 for females and 9-14 mm for males. 



The width of the pereon (dorsal view) is much greater than that of the 

 pleon. The 2nd segment of pereopods I is not very strongly broadened 

 and its maximum width much less than its length. Pereopods VI are 

 only slightly longer than pereopods V. In pereopods VII the 4th and 

 5th segments are equal. The telson reaches 1/2-2/3 the length of the 

 basipodite of uropods III. 



Distribution: A panoceanic species known from many records from 

 the tropical and cold-water regions of the Atlantic, Indian, and Pacific 

 oceans. In the Antarctic it reaches right up to the coast of Antarctica. Of 

 all the Lanceola, only this species is found in the Arctic Basin. It inhabits 

 a wide range of depths, from 200-500 to 5,000-5,500 m, possibly even 

 deeper. It is more often found at depths of 1,000-3,000 m, i.e., in the 

 bathypelagic. 



69 



Fig. 16. Lanceola clausi clausi Bovallius, male (after Shoemaker, 1945a). 



