ENTOMOSTRACA OF MINNESOTA. 311 
The five large sete on the antepenultimate joint of the antennee 
extend way beyond the tip of the terminal claws (Fig. 9). The distal 
extremity of each seta is plumose. According to Professor Brady* in 
Cypris ovum (Jurine) only two of the natatory sete of each antenna are 
long. In this respect Cypris ovum (Jurine) differs from the specimen 
under consideration; but since they are similar in all other features I 
consider them to be of the same species. 
The terminal joint of the mandibular palp is short. The terminal 
claws of this palp extend to the tip of the mandibular teeth. 
The slightly curved terminal claw of the first foot is slender and is 
about as long as the combined lengths of the three distal joints. 
The terminal joint of the second foot is about two-thirds as long as 
the fourth joint (Fig. 11). The long, slender, backwardly directed 
seta upon the distal extremity of this joint is longer than the combined 
lengths of the three distal joints. This joint bears at its apex two 
other set; one, about the same length as the joint is directed back- 
ward, the other is very short and is directed forward. 
The short post-abdomen is about twice as long as its terminal claws. 
The stout claws are feebly curved. 
Habitat: I have seen only three specimens of this species. These 
Professor L. D. Hileland collected in Jones’ Creek, Kent County, Dela- 
ware, March 31, 1894. 
Cyclocypris modesta (Herrick. ) 
PLATE LXXII, Fies. 5, 5*, 5a, ETc. 
Cypris modesta C. L. Herrick (86), p. 28; Pl. IV, Fig. 5. 
This species has never been seen by me. Probably its nearest ally 
is Cypria inequivalva Turner. The figures as well as the text of this 
species are taken from Professor Herrick’s work (86). 
‘Shell sub-reniform, greatest height behind the middle, upper out- 
line somewhat obliquely truncate, especially in the male; color yellow- 
ish, scarcely maculate, nearly smooth. Antenne short, with long 
non-plumose filaments, two from the apical and four from the penulti- 
mate segment very long, others half as long; second antennze with 
three toothed claws on the penult segment, one together with three 
smaller ones, on the apical, antepenult segment armed only with small 
bristles, preceding one with six long setz exceeding the claws; first 
foot slender, apical segment long conical, with a long serrate claw and 
bristle, other setze short; second foot (in male) with a short terminal 
Segment armed with two very long set and one shorter one; caudal 
stylets very slender, with a terminal claw, a sub-terminal claw some- 
* Recent British Ostracoda, p. 373. 
