135 



inverse length ratio of these segments, which is evidently explained by an 

 inaccuracy in drawing — so characteristic of this author. Pereopods VII 

 are shorter but stronger than pereopods VI; their 5th segment is consid- 

 erably (1.4-1.8 times) longer than the 4th and slighdy longer than the 

 linear or narrowly oval 6th segment. The claws of pereopods V-VII are 

 short, strong, and curved. 



Distribution: Northern and tropical regions of the Atlantic Ocean 

 (Bay of Biscay, Canary Islands, Madeira Island, Bermuda Islands); trop- 

 ical regions of the Indian Ocean from 6° N to 30° S; various regions 

 of the Pacific Ocean (Bering Sea and Kuril-Kamchatka Trench, Philip- 

 pine Sea, Galapagos Islands, Tonga Trench); Antarctic waters: 64° 03' S, 

 161° 59' E. Young specimens are found in catches from depths of 200 

 to 2,000 m but sexually mature females or the casts of spawned females 

 have been found repeatedly right at the surface. 



2. Mimonectes loveni Bovallius, 1885 (Fig. 48) 



Bovallius, 1885a: 3, 1889: 60; Shoemaker, 1945a: 1X9 —cultricomis 

 Woltereck, 1906: 862, 1927: 83 (Sphaeromimonectes). — chevreuxi Pirlot, 

 1929: 56; Stephensen and Pirlot, 1931: 531; Barnard, 1932: 253 {Paras- 

 cina), 1937: 179. 



Maximum size of males 1 3 mm, of females 24-28 mm. 



In external appearance and basic structural features this species is 

 close to the preceding one. 



For M. loveni, the very large and broad apical segment of antennae I 

 is characteristic; it is many times longer than the two preceding distal 

 segments. 



The cutting edge of the mandibles is considerably broader than in 

 M. sphaericus; the accessory plate constitutes nearly half its width. The 

 inner lobe of maxillae I is oval, with a small apical seta. The inner lobe 

 of maxillae II is broader than the outer and armed with three (two on 

 the outer lobe) strong setae. The maxillipeds are identical to those of 

 M. sphaericus but lack the characteristic notch in the distal part of the 

 outer margin of the outer lobe. 



The 2nd segment of pereopods I is roughly the same length or 

 slightly shorter than the 5 th and 6th segments together; the 5 th seg- 

 117 ment is equal to or slightly longer than the 6th; the oval-conical 6th 

 segment is armed with numerous setae but devoid of blunt spines on the 

 posterior margin. Pereopods II are slightly longer but not stronger than 

 pereopods I; the 2nd segment is equal to or slightly longer than the 5th 

 and 6th together; the latter two segments are roughly equal in length; the 

 conical or oval-conical 6th segment does not have a notch in the distal 

 part of the posterior margin in either males or females, its distal angles 

 below and above the claw forming very small denticles; the claw is short 

 and straight. The 2nd segment of pereopods III and IV is shorter than or 



