28 CRUSTACEA OF ALABAMA. 



a delicate seta, caudal stylets elongate, narrow, serrate behind, with two straight, un- 

 equal serrate claws, lateral spine sub-terminal. 



Length 3.60 mm., height 1.72 mm., width 1.40 mm. 



This is perhaps the largest species of the genus and is our most beautiful form, the 

 bright and contrasting colors of the valves and the definite pattern making it very con- 

 spicuous. Found in pools near Mobile, Ala., in great numbers in July. 



Cypris minnesotensis, S P- n - 



(Plate VII, Fig. 2.) 



The description of this the American representative of C. fasciata, has been with- 

 held for several years in the hope of securing other specimens. It is here given, imper- 

 perfect as it is, for the sake of collating all the information at hand. From any of the 

 American species it is at once known by the great proportionate length of the valves 

 which are about two and one-half times as long as broad. Lower margin nearly straight, 

 gently sinuous near the middle, dorsal margin gently curved, highest back of middle, 

 then gently curved ; color light, with two inconspicuous dark transverse bands on either 

 side at about the anterior and posterior thirds ; scattered hairs upon prominences are 

 found near the margins. Antennae slender, seven-jointed, apex with two very long and 

 one short spine, penult segment with four long setae, antepenult segment with two long 

 plumose setae above, preceeding segment with shorter setae; second antennae with the apical 

 segment very short and armed with one ( ?) serrate claw and a seta, the preceeding with 

 two claws and a few short setae, antepenult segment with three (four?) shortish setae, not 

 reaching end of claws ; mandible with strong, lobed teeth and a large palp ; first foot 

 with a large claw ; second foot slender, ending in a small hook with a single weak seta ; 

 caudal stylets rather short and wide with two strongly serrated claws, the other spines 

 being obsolescent (?); posterior margin serrulated. Lucid spots of the shell seven in 

 number, two being minute. Length of shell 1.6 mm. Several points require verifica- 

 tion, but in connection with the drawings the above may serve to identify the fine species. 



Cypris modesta, s P- "■ 



(Plate IV, Fig. 5.) 



Shell sub-reniform, greatest height behind the middle, upper outline somewhat ob- 

 liquely truncate, especially in the male ; color yellowish, scarcely maculate, nearly 

 smooth. Antennae short, with long non-plunose filaments, two from the apical and four 

 from the penult segment very long, others half as long ; second antennae with three 

 toothed claws on the penult segment, one together with three smaller ones, on the apical, 

 antipenult segment armed only with small bristles, preceeding one with six long setae 

 exceeding the claws ; first foot slender, apical segment long conical, with a long serrate 

 claw and a bristle, other setae short; second foot (in the male) with a very short termi- 



