^^^■^] Esterhj. — Copepod Fauna. 71 



from the abdomen (except for traces), anterior and posterior an- 

 tennae, bnt abundant in the feet and their bristles. The color is 

 striking', since it gives the animal as a whole a black or grayish 

 black appearance. 



Occnrrence: Three males, one female. Coll. 1030. Type in 

 the collection of the University of California. 



The species is probably allied to M. scotti Giesbrecht, but the 

 presence of spines on the inner border of the right fifth foot seems 

 to be a specific character. 



Metridia ignota n. sp. 



PI. 9, fig. 20. 



Female: Forehead slightly protruding (PL 9, fig. 20) into a 

 rounded projection, below which the frontal hairs are situated 

 on a rounded eminence. Rostrum rather stiff. The last thoracic 

 segment is rounded at the sides and rather truncate. The furca 

 is six times as long as broad and as long as the anal segment. The 

 latter is only slightly shorter than the genital segment, and the 

 genital segment is twice as long as the middle segment. The basal 

 joint of the anterior antennae has three straight spines, of which 

 the middle one is the shortest. The fifth feet are 4-jointed, ter- 

 minal joint with three bristles of about equal lengths; the second 

 joint has a spinose bristle on the outer margin which reaches be- 

 yond the end of the last joint of the foot ; the third joint is pro- 

 vided with a stout spine on the outer margin. 



Length : Female, 5.8 mm. 



Coloration : Very translucent, no pigment. 



Occurrence : One female. Coll. 1030. Type in the collection 

 of the University of California. 



M. ignota resembles M. princeps Giesbrecht somewhat, but the 

 shape of the head, the relative lengths of the abdominal segments, 

 and the fifth feet will distinguish the two. 



Genus Disseta Giesbrecht. 



Disseta, Giesbrecht ('92), p. 63, 369; ('98), p. 112. 



Female: Allied to Lucicutia Giesbrecht. Left half of fiirca 

 larger than the right (PI. 11, fig. 45), and bristles longer and 



