SARSIELLA — KORNICKER 



23 



Seventh limb (fig. lOd): short stiinip without terminal comb or 

 bristles. 



Fiirca: similar to adult female except for fewer teeth on 4th and 

 5th claws. 



Frontal organ: 1-jointed with rounded tip. 



Eyes: medial eye large, pigmented; lateral eyes about same size as 

 medial eye, with about 4 di\dded ommatidia. 



Genitalia: undeveloped. 



Figure 10. — Sarsiella zostericola Cushman, stage III 9 from California: a, 1st antenna, 

 3rd to end joints, bristles shown only on 3rd and 4th joints; b, 2nd antenna, protopodite, 

 endopodite, 1st and 2nd joints of exopodite; c, 6tli limb; d, 7th limb. (Same scale, in 

 microns: a, b, d; c.) 



Description of female instar iv (fig. 11). — Shell: lateral view, 

 oval, similar to female instar III, but more rounded. Dimensions 

 of selected specimens are as follows: 



