Plate VII. 



Page 

 Fig. i. Hymedesmia verrucosa n. sp. a acanthostyli of various sizes, b strongylum x 255, c chelae 



arcuatae, oblique front view and side view x 1000 58 



— 2. Hymedesmia procumbcus n. sp. a acanthostyli of various sizes, b tornotum x 255, c chela 



arcuata, side view x 1000 60 



— 3. Hymedesmia perforata n. sp. a acanthostyli of various sizes, b tornotum x 255, c chelae 



arcuatae of various sizes, side view x 1000 61 



— 4. Hymedesmia clavigera n. sp. a acanthostyli, large and small, b tornotum x 255, c chela 



arcuata, side view x 1000 62 



5. Hymedesmia platychela 11. sp. a acanthostyli of various sizes, b tornotum x 255, c chela 



arcuata, front view x 1000; one tooth is cleft 63 



— 6. Hymedesmia basispiuosa n. sp. a acanthostyli, large and small, b tornotum x 255, c chela 



arcuata, side view x 1000 64 



— 7. Hymedesmia lougistylus n. sp. a acanthostyli of various sizes, /; tornotum x 165, c chela 



arcuata, side view x 1000 66 



— 8. Hymedesmia occulta Bow. a acanthostyli, large and small, b one of the tornota, c one of 



the oxea from the dermal skeleton, d one of the thicker oxea from the dermal mem- 

 brane, e one of the specially thick dermal oxea from the specimen mentioned in the 

 text x 165, f chelae arcuatae, side and front view x 1000 67 



— 9. Hymedesmia simillima n. sp. a acanthostyli, large and small, b dermal oxeum, c one of the 



thick dermal oxea x 165, d chela arcuata, side view x 1000 69 



