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BULLETIN 201, UNITED STATES NATIONAL MUSEUM 



96, d) is divided into three sub joints and that of the eighth into two. 

 The basal joint of the exopods of all the thoracic limbs has the outer 

 distal corner rounded, without spine. 



Sixth somite of the pleon V/ 2 to 1% as long as the fifth. 



Figure 96. — Mysidium integrum, new species: a, Antennal scale, X 64; b, endopod of first 

 thoracic limb, X 56; c, endopod of second thoracic limb, X 56; d, endopod of third thoracic 

 limb, X 56; e, fourth pleopod of male, X 64;/, telson, X 64. 



Telson (fig. 96, /) only three-quarters of the length of the sixth 

 segment of the pleon, spatulate in shape, 1% times as long as broad 

 at the base, gradually narrowing to a broadly rounded apex which is 

 not incised or even emarginate, but straight with rounded lateral 

 corners ; the armature of very closely set and regularly arranged spines 

 is confined to the distal half of the margins and the whole of the 



