127 



Distribution: Tropical regions of the Pacific and Indian oceans in 

 the region of the Philippines, New Hebrides, and Japanese deepwater 

 trenches. It is found in catches from depths of 500-2,000 m and in 

 through catches from depths of 1,700 m and more to the surface. 



110 SUPERFAMILY SCINOmEA STEBBING, 1888 



The pereon of males does not bulge. Antennae I of males (often in both 

 sexes) longer, not shorter than four-five pereon somites. The cutting 

 edge of the mandibles is narrow; the mandibular palp is absent or only 

 its one-segmented rudiment retained. 



V. Family MIMONECTIDAE Bovallius, 1885 



Crustaceans of medium size, length up to 25-30 mm. The pereon is broad 

 and in sexually mature females spherically bulging due to the enlarged 

 somites I-V. All the pereon somites are free. The head is not longer than 

 pereon somite I and high. The eyes are small, consisting of several facets, 

 or absent. Antennae I have a short two- or three- segmented peduncle; the 

 flagellum consists of a long, narrowly conical proximal segment and three 

 small distal segments; the total length of antennae I in females is more 

 than the length of pereon somite I and in males may reach the length of its 

 five somites. Antennae II in females are small and rudimentary, in males 

 longer, thin, sometimes just slightly exceeding the length of antennae I. 

 The mandibles have an accessory plate; the palp is either absent or a 

 one-segmented rudiment present. The maxillipeds have a weakly armed 

 oval outer lobes and a separate inner lobes. The coxal plates are free. 

 The pereopods are simple. The 5 th segment of pereopods I and II is only 

 slightly broadened distally. Pereopods III-VII barely differ in length. The 

 uropodal rami are free. The telson is short and triangular. 

 The family includes two genera. 



KEY TO GENERA OF FAMILY MIMONECTIDAE 



1 . Mandibles lack palp; outer lobe of maxillae I normally developed and 

 roughly equal in length to palp; claws of pereopods VI-VII small, 



straight or slightly curved 2. Mimonectes Bov. 



— Mandibles with rudimentary one-segmented palp; outer lobe of max- 

 illae I weakly developed, shorter than palp; claws of pereopods VI 

 and VII large and falcate 1 . Pseudomimonectes Vinogr. 



1. Genus Pseudomimonectes Vinogradov, 1960 



Vinogradov, 1960a: 219. 



The body integument is thin. The head lacks a rostrum. Eyes are 

 absent. Antennae I are longer, vesicular, and the distal segments of the 



