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 procumbens 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 n. sp. a acanthostyli of various sizes, b tornotum x 255, c chela 



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



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



arcuata, side view x 1000 64 



7. Hymedesmia longistylus u. sp. a acanthostyli of various sizes, b 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 u. 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 



