REVISION OF RECENT BAIRDHDAE 



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Figure 4S.—Bythocypr{s eltanina, n. sp.: A,B,E, Female USNM 121393; C,G, male USNM 

 121391; D.F. female USNM 121392. 



A, Third thoracic leg; B, second thoracic leg; C,D, antennal claws; E, first thoracic 

 leg; F, genital lobe and furca; G, copulator>' organ. A,B,E-G, X 152; C,D, X 301. 



Affinities. — Carapace very similar in outlines and muscle-scar 

 pattern to that illustrated for Bairdia folini Brady (1886, p. 195, 

 pi. 14: figs. 4, 5; Brady and Norman, 1889, p. 242). The length of the 

 latter species is given as 1.75 mm; the soft parts are not known, but 

 it apparently is a closely related species of Bythocypris. 



