174 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
11. Centropages hamatus Lilljeborg. 
No teeth on joints 1, 2, 5, 15, and 16 of anterior antenna}; lateral corners of last thoracic seg- 
ment terminating in hooks, asymmetrical in the female. Inner ramus of first to third pairs of feet 
3-jointed; inner marginal bristle of first joint of inner ramus of fifth foot in female a normal plumose 
bristle; outer marginal bristle of second joint of outer ramus of fourth foot in male symmetrical. A 
spine in front of genital orifice. 
Length of female, 1.3 to 1.42 mm.; of male, 1.15 to 1.3 mm. 
Nearly always present in considerable numbers in tow taken from Fish Commission’s wharf at 
Woods Hole and elsewhere in vicinity. 
12. Centropages bradyi new species. 
Brady in his report on the Copepoda of the Challenger expedition (1883, p. 83, pi. xxvir) describes 
and figures, as C. violaceus Claus, a species which, as Giesbrecht has shown, can not possibly he 
Claus’s species. From a num- 
ber of specimens of both 
sexes, of what is undoubtedly 
Brady’s species, taken in the 
Gulf Stream 70 miles south of 
Marthas Vineyard, July 25, 
1899, it is very evident that 
this form must be added to 
the species described and 
enumerated by preceding au- 
thors. It differs from C. rio- 
laceus Claus in the following 
salient characters : 
Female : Second joint of 
outer ramus of fifth foot with 
a stout, smooth spine. Sides 
of inflated genital segments 
without spines or knob- 
shaped projections. Furca 
symmetrical with a peculiar, 
short, truncated, peg-shaped 
projection between inser- 
tions of two outer bristles. 
Male: Joint 17 of right 
anterior antenna with a 
smooth anterior border, not 
serrate; joints 19 and 20 
fused, separated from joint 
21; joint 18 with an acces- 
sory series of teeth on lower 
surface. Forceps of fifth 
pair of feet differing in many 
respects from same pair of 
feet in C. violaceus (see fig. 12, d and e). The peg-shaped appendage between two outer furcal bristles 
is not attached to a bristle, as in Brady’s fig. 1, pi. xxvii. In both sexes the antennae are very long 
and slender and exceed the furca by at least their 3 or 4 terminal joints. 
Coloration: Rather opaque, with a large purplish spot in middle of body. Plumes of posterior 
antenna 1 and maxilhe orange-yellow toward their tips. 
12. Centropages bradyi new species a, female, dorsal aspect; b, female, abdomen, ven- 
tral aspect; c, male, right anterior antenna}, joints 17-21; d, male, right fifth foot; 
e, male, left fifth foot; /, female, fifth foot. 
TEMORA Baird. 
Furca long, slender, at least 7 times as long as broad. Anterior antenna?. 24-jointed; the twenty- 
fourth and twenty-fifth joints fused, the first separated from the undivided second. First pair of. feet 
with 3-jointed outer and 2-jointed inner ramus; in the second to fourth pairs the line of division 
