Plate XL 



Page 



Fig. i. Hymedesmia dermata n. sp. a acanthostyli, large and small, b strougylum X 255 107 



2. Hymedesmia tornotata 11. sp. a acanthostyli of various sizes, b toniota with microspiued 



ends x 255 I0 9 



— 3. Hymedesmia mucronclla n. sp. a acanthostyli, large and small, b tornotum, the upper end 



with a mucro x 255 IIQ 



— 4. Hymenancora interjecta u. sp. a acanthostyli, large and small, b tylotum x 255, c ancorse, 



front and side view x 1000, d sigmata x 460 «7 



— 5. Hymenancora conjungens n. sp. a acanthostyli, large and small, b tylotum with somewhat 



swollen ends x 255, c ancorse, side view and oblique front view, x 1000, d sigmata 



x 460 Il8 



— 6. Hymenancora duplicata n. sp. a acanthostyli of various sizes, b tornotum x 255, c ancorse 



spatuliferse of the large form, oblique front view and side view, d ancorse spatuliferse 

 of the small form, front view and side view, the latter shows two smaller teeth at the upper 

 end x 1000 ll 9 



— 7. Hymenancora tomisclcra 11. sp. a acanthostyli of various sizes, b strongylum x 255, 



c ancorse unguiferae, side view, with more and less curved shaft x 1000 121 



— 8. Leptolabis assimilis n. sp. a acanthostyli, large and small, b tylotum x 255, c chelse 



arcuatse of various sizes, side view x 1000, d large forcipes x 1000, e small forcipes 



x 1400, f sigmata x 340 J22 



