COPEPODS GATHERED BY ALBATROSS—WILSON 219 
The second basipod segment carries at its base on the inside a small 
process tipped with two stout setae. The chewing blade of the mandi- 
ble has a short truncate tooth at the outer corner and an acuminate 
spine at the inner corner and between them two irregular rows of teeth, 
some acute, and some truncate. The mandibular palp is biramose, 
the rami 2-segmented, the proximal segments unarmed, the distal 
exopod segment with six setae, the endopod segment with eight setae. 
The maxilliped is 7-segmented, the first segment with four setae on 
the ventral surface, the second segment with three setae at the center 
of the posterior margin, the five distal segments each with two long, 
curved setae. 
The first legs are small, the exopod 2-segmented, the endopod 1- 
segmented; the two basipod segments are rectangular, and each has 
a tuft of hairs on its inner margin. The basal exopod segment has 
two spines on its outer margin and a seta at its inner distal corner; 
the end segment has a spine at the distal corner and four inner setae. 
The endopod has five setae and does not reach the distal end of the 
first exopod segment. The first basipod of the second leg has a bunch 
of hairs and a plumose seta on its inner margin; the second basipod 
is unarmed. The endopod is 1-segmented with six setae, one outer, 
two terminal, and three inner, and reaches beyond the center of the 
second exopod segment. The exopod is 3-segmented; the basal seg- 
ment has an outer spine and an inner seta, the second segment has two 
outer spines and an inner seta, the third segment has two outer spines, 
two at the distal corner, one terminal and four inner setae. The third 
and fourth legs have 3-segmented rami; the two proximal exopod seg- 
ments each carry two spines at the outer distal corner and an inner 
seta; the end segments each have two outer spines, two at the distal 
corner, a stout serrated terminal spine and four inner setae. The 
endopods just reach the distal end of the second exopod segment; the 
first segment has two outer spines and an inner seta; the second seg- 
ment has one outer spine and a fringe of hairs and an inner seta; 
the third segment has five setae. It is the second basipod of the fourth 
legs that carries the distinctive armature in the females of this genus 
since they lack fifth legs. In the present species most of the females 
carry on the inner margin of this basipod segment a large plumose 
seta and a row of four spines fused at their bases (fig. 94), but rarely 
three spines and a seta (fig. 248). The above description is based on 
a female specimen from station 5102. 
EUCHIRELLA BITUMIDA With 
PLATE 23, FIGURES 332-335 
Buchirella bitumida Wir, Danish Ingolf-Expedition, vol. 3, pt. 4, p. 131, fig. 34, 
pl. 5, figs. 9 a-g; pl. 8, figs. 4 a-e, 1915. 
