COPBPODS OP THE WOODS HOLE REGION 



277 



1-segmented but well developed; exopod of first legs 3-segmented, 

 end segment with two geniculate apical setae and two outer spines; 

 distal segment of fifth legs narrow oval, with a straight inner mar- 

 gin and five setae, one terminal, one inner, and three outer, the 

 terminal one filiform; basal expansion reaching the center of the 

 distal segment, with five setae, one terminal, and four inner, the 

 terminal one the longest. Total length, 0.65-0.75 mm. 



Male. — A little smaller than the 

 female; first antennae enlarged in 

 the usual manner; endopod of third 

 legs 3-segmented, the second segment 

 with a slender spine at the outer 

 distal corner extending to the tip of 

 the terminal segment ; • exopod very 

 wide and stout, twice the length of 

 the endopod, its end segment with 

 five long and stout spines, and two 

 setae on the inner margin. Fifth 

 legs very small, the distal segment 

 narrow oval, with four setae, one 

 terminal, one inner, and two outer, 

 the terminal one much the longest; 

 outer process of basal segment nearly 

 as large as distal segment; inner 

 expansion practically obsolete, but 

 with a single seta. Total length, 

 0.6-0.65 mm. 



Remarks. — ^When alive this copepod can be at once recognized by 

 its color, the three transverse orange-colored bands standing out 

 prominently ; in preserved material the long and slender caudal rami 

 furnish the best single character. It is a littoral species living among 

 the algae, and may be looked for in any of the larger salt-water 

 ponds of the area. 



LAOPHONTE CAPILLATA. new specieg 



Plate 16 



Occurrence. — Twenty specimens, including both sexes and females 

 with ovisacs, were washed from the sand on the shore of Katama 

 Bay, Marthas Vineyard, August, 1927. The male holotype is 

 U.S.N.M. No. 60426. 



Color. — Body semitransparent and whitish, usually tinged with 

 blue; eggs a greenish blue, deepening in color with development; 

 eye dull red. 



Female. — Elongate, narrow, somewhat depressed and but little ta- 

 pered posteriorly ; cephalic segment a little shorter than the rest of 



Figure 172. — Laophonte longicaudata: 

 a. Female, dorsal ; b, female, fifth 

 leg ; Cj female, first leg ; dj male, 

 fifth leg 



