COPEPOD CRUSTACEANS — LEWIS 



45 



tral region. Fifth legs (fig. 16/) arising from posterior lateral surface 

 of dorsal overlap, consisting of 2 nodules, anteriormost with single 

 setule, posterior with 3 setules. 



Figure 16. — Elytrophora brachyptera Gerstieckev, 1853, matuie adult, dorsal view: a, fe- 

 male; b, male; c, posterior cephalothoracic sinus. Ventral view: d, female genital segment 

 showing spermatophore (sp), abdomen, and caudal ramus; e, male genital segment, abdo- 

 men and caudal ramus;/, female left fifth leg; g, male left fifth leg. 



Abdomen 2-segmented, distinct from genital segment ventrally, 

 indistinctly separable dorsally. First segment, excluding lateral 

 projections, slightly shorter than second, with pair of distinct, flap- 

 like projections extending laterally and posteriorly, to middle of second 



