COPEPODS OP THE WOODS HOLE EEGION" 271 



The first legs are like those of the female except that the second 

 basipod has a rounded process at its inner distal corner. The second, 

 third, and fourth exopods are enlarged as usual and armed with 

 coarse spines, but the end segments are not turned inward. The 

 third endopod reaches the tip of the second exopod segment, and is 

 distinctly 3-segmented; the second segment is produced at its outer 

 distal corner into a flattened acuminate spine, which reaches beyond 

 the tip of the end segment, and carries at the inner corner a plumose 

 seta ; the end segment has two apical and two inner setae. The fourth 

 endopod does not reach the center of the middle exopod segment; 

 its end segment is longer than the basal segment, and has one apical, 

 one outer, and one inner setae. Between the bases of these setae and 

 along the lateral margins of the segment are stout spinules. 



Basal segment of fifth legs apparently absorbed into the body, 

 leaving its outer process and the distal segment protruding side by 

 side from the ventral surface of the fifth segment, without any trace 

 of the inner expansion. The outer process is longer than the distal 

 segment and ends in a small knob, which carries the single non- 

 plumose seta. The distal segment is strongly narrowed at its base 

 and 2-lobed at its apex, each lobe with a single plumose seta. Rudi- 

 ments of a sixth pair of legs appear in the form of a small lamina 

 tipped with two plumose setae on either side at the distal corner of 

 the genital segment. Total length, 0.4r-0.45 mm. 



Remarks. — This is a bottom species and sticks closely to the algae 

 and bottom debris, seldom coming out into the open and swimming 

 about freely. Instead it crawls slowly through the debris and ap- 

 parently can not move with any rapidity. When captured it is more 

 or less covered with small particles of the substances through which 

 it has been crawling, and these effectively conceal the " wartlike proc- 

 esses " along the posterior margins of the body segments. When 

 once discovered, however, these together with the structure of the 

 fifth legs will identify the species, which has not been reported out- 

 side of the localities mentioned above. 



« 



LAOPHONTE NANA G. O. Sars 

 Figure 168 

 Laophonte nana Sars, Crustacea of Norway, vol. 5, p. p. 262, pi. 182, 1908. 



Occurrence. — Eight females were washed from sand dredged in 

 23 fathoms of water 12 miles south of No Mans Land, July, 1927. 



Distribution. — Norwegian fiords (Sars). 



Color. — Body a uniform pale yellow, oviducts and eggs with a 

 greenish tinge, which becomes deeper in color as the eggs mature; 

 eye invisible. 



