430 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxv. 



Plate LIX. 



Fig. 1. Notodromas monacha, lateral view. 



2. Notodromas monacha, dorsal view. 



3. Notodromas monacha, right maxillary foot of male. 



4. Notodromas monacha, left maxillary foot of male. 



5. Notodromas monacha, terminal segments of second foot. 



6. Notodromas monacha, ventral view. 



7. Notodromas monacha, spines of maxillary process. 



8. Notodromas monacha, furca. 



Plate LX. 



Fig. 1. Cythere americana, new species, lateral view. 



2. Cythere americana, new species, first leg. 



3. Cythere americana, new species, second leg. 



4. Cythere americana, new species, mandibular palp. 



5. Cythere americana, new species, first antenna. 



6. Cythere americana, new species, dorsal view. 



Plate LXI. 



Fig. 1. Cythere papillosa, new species, dorsal view. 



2. Cythere papillosa, new species, lateral view. 



3. Cythere papillosa, new species, first antenna. 



4. Cythere papillosa, new species, second antenna. 



Plate LXII. 

 Fig. 1. Cylindroleberis oblonga, lateral view. 



2. Cylindroleberis oblonga, furca. „ 



3. Cylindroleberis oblonga, part of a terminal claw of furca. 



4. Cylindroleberis oblonga, extremity of vermiform limb. 



Plate LXIII. 

 Fig. 1. Cylindroleberis lobianci, lateral view of female. 



2. Cylindroleberis lobianci, lateral view of male. 



3. Cylindroleberis lobianci, dorsal view. 



4. Cylindroleberis lobianci, terminal part of vermiform limb. 



5. Cylindroleberis lobianci, mandibular process. 



Plate LXIV. 

 Fig. 1. Pyrocypris americana, lateral view. 



2. Pyrocypris americana, terminal part, vermiform limb of female. 



3. Pyrocypris americana, inner branch, antenna of female. 



4. Pyrocypris americana, furca. 



5. Pyrocypris americana, upper lip, side view. 



Plate LXV. 

 Fig. 1. Philomedes brenda, lateral view. 



2. Philomedes brenda, secondary branch of antenna of male. 



3. Cylindroleberis lobianci, furca, showing an enlarged seta. 



4. Cylindroleberis lobianci, another young stage, as fig. 5. 



5. Cylindroleberis lobianci, rudimentary inner branch; second antenna of 



female (young). 



6. Cylindroleberis lobianci, rudimentary inner branch, second antenna of 



male. 



7. Cylindroleberis lobianci, portion of a natatory seta, 



