PLATE 16. 



Bathydorus laevis spinosissimus Lendenfeld. 



Figs. 1-8, 10, 11, 14-24 — specimen A. 

 Figs. 9, 12, 13 — specimen B. 



1, 2. — Side-views of pentactines with long proximal and short lateral rays, of specimen A; magnified 50; 



phot. Zeiss, planar 20 mm., compens. oc. 6. 

 3. — Side-view of a hexactine of specimen A; magnified 50; phot. Zeiss, planar 20 mm., compens. oc. 6. 

 4-8. — Side-views of pentactines with long lateral I'ays, of specimen A; magnified 50; phot. Zeiss, 



planar 20 mm., compens. oc. 6: 

 4-6, 8, with normally developed rays; 



7, with the proximal and two lateral rays reduced in length and terminally thickened. 



9. — Gastral pinule-like hexactine of specimen B; magnified 100; phot. Zeiss, apochr. 16, compens. oc. G. 



10, 11. — Two gastral pinule-like hexactines of specimen A; magnified 200; phot. Zeiss, apochr. 8, 



compens. oc. 6. 



12-14. — Dermal stauractines ; magnified 200; phot. Zeiss, apochr. 8, compens. oc. 6: 

 12, 13, of specimen B; 

 14, of specimen A. 



15. — Fart of the apical view of the lateral rays of a pentactine of specimen A; magnified 200; phot. 



Zeiss, apochr. 8, compens. oc. 6. 



16, 17. — Apical views of the lateral rays of pentactines of specimen A; magnifi^cd 50; phot. Zeiss, 



planar 20 mm., compens. oc. 6: 



16, of a pentactine in which all the lateral rays are properly developed; 



17, of a pentactine with one lateral ray reduced in length. 



18. — Abnormal hexactine of specimen A; magnified 30; phot. Zeiss, planar 20 mm. 



19. — Rectangular diactine of specimen A; magnified 50; phot. Zeiss, planar 20 mm., compens. oc. 6. 



20. 21. — Part of a slightly heated lateral ray of a pentactine of specimen A; magnified 600; phot. 



Zeiss, H. I. apochr. 2, compens. oc. 6: 

 20, focussed higher; 21, focussed lower. 

 22, 23. — Part near the base of a lateral ray of a pentactine, of specimen A; magnified 600; phol . Zeiss, 

 H. I. apochr. 2, compens. oc. 6: 

 22, focussed higher; 23, focussed lower. 

 24. — End of a lateral ray of a pentactine of specimen A; magnified 600; phot. Zeiss, H. I. apochr. 2, 

 compens. oc. 6. 



Staurocalyptus hamatus Lendenfeld. 

 Figm-es 25-43. 



25-28. — Ends of rhabds; magnified 200; phot. Zeiss, apochr. 8, compens, oc. 6: 



25-27, of small rhabds; 



28, of a large rhabd. 

 29. — A small rhabd; magnified 200; phot. Zeiss, apochr. 8, compens. oc. 6. 

 30-33. — A middle-sized stout rhabd, and parts of it: 



30, the rhabd; magnified 30; phot. Zeiss, planar 20 nun.; 



31-33, parts of the rhabd; magnified 200; phot. Zeiss, apochr. 8, compens. oc. G: 



31, one end; 



32, portion of the middle-part; 



33, the other end. 



