Plate X. 



Page 

 Fig. i. Hymedcsmia planca n. sp. a acanthostyli, large and small, b tylotornotum x 255, c chela; 

 arcuatse of various sizes, front and side view x 1000, d large sigmata, e small, circularly 

 curved sigmata x 585 96 



2. Hymedcsmia cultrisigma n. sp. a acanthostyli, large and small, b tylotum x 255, c chela 

 arcuata, side view x 1000, d sigmata of the large, peculiar form, c sigmata of the 

 ordinary form x 585 97 



— 3. Hymedcsmia mucronata Tops, a acanthostyli of various sizes, b oxytornota x 255, c chela 



arcuata, side view, d — c the peculiar chela, d side view, e seen in oblique front view 

 and somewhat from the end, in this view the points of the processes are not seen 

 and the processes appear therefore rounded at the ends x 1000, f sigmata x 585 ... 98 



— 4. Hymedesmia tenuisigma n. sp. a acanthostyli, large and small, b polytylote strongylum 



X 255, c sigmata x 460 100 



— 5. Hymedesmia Dujardinii Bow. a acanthostyli of various sizes, the middle one with a slight 



head-swelling on account of the shaft being thick below, b strongylum and tylotum 



x 255 101 



— 6. Hymedcsmia primitive/, n. sp. a acanthostyli of various sizes, b polytylote strongylum x 255 104 



— 7. Hymedesmia longurius n. sp. a acanthostyli of various sizes, b a thinner and a thicker 



strongylum x 255 105 



— 8. Hymedesmia ccqiiata 11. sp. a acanthostyli of various sizes, b strongylum x 255 106 



