EXPLANATION OF PLATES XIX 



Fig. 3. Astrorhiza limlcola (a, lateral aspect; b, portion of the test more. 

 highly magnified, showing structure). 



Fig. 4. Haliphysema Tumanowiczii, showing the pseudo-polythalamous foot. 



Fig. 5. Ibid, (group of specimens in situ). 



Fig. 6. Haplophragmium agglutinans (a, lateral aspect ; 6, longitudinal 

 section). 



Fig. 7. H. nanum (a, superior aspect; b, peripheral aspect). 



Fig. 8. Tcxtularia gramen (a, lateral aspect; b, oral aspect). 



Fig. 9. T. gramen (peripheral aspect). 



Fig. 9a. Pavonina flabclliformis (a, lateral aspect ; b, oral aspect). 



Fig. 10. Bulminia spinulosa. 



Fig. 11. Chilostomella ovoidea (a and b, lateral aspects ; c, specimen 

 mounted in Canada balsam and seen with transmitted light). 



PLATE XIX. (Facing p. 799) 



FORAMINIFERA 



Fig. 12. Lagena sulcata. 



Fig. 13. L. sulcata. 



Fig. 14. L. sulcata. 



Fig. 15. L. sulcata (a, lateral aspect; b, oral aspect). 



Fig. 16. Nodosaria raplianus. 



Fig. 17. Cnstellaria calcar (a, b, c, lateral aspects). 



Fig. 18. Ramulina globulifera. 



Fig. 19. R. globulifera. 



Fig. 20. Globigerina bulloides (var. triloba, pelagic specimen). 



Fig. 21. G. bulloides (a b, c, adult typical shell). 



Fig. 22. Rotalia Beccarii. 



Fig. 23. Polystomella craticulata. 



Fig. 24. Amphistegina Lessonii (a, superior lateral aspect ; 6, inferior lateral 

 aspect ; c, peripheral aspect). 



Fig. 25. Nummulites Icevigata (b, lateral aspect ; c, vertical section). 



Fig. 26. Portion of Orbitoides nummulitica. 



PLATES XX, XXI, XXII 



ACARINA 



All the figures, except fig. 4, Plate XXII., are copied from plates drawn by 

 Mr. A. D. Michael, F.L.S., &c. by the kind permission of the respective 

 societies that published them. Figs. 1 to 6, Plate XX., and 1 to o, Plate 

 XXL, are from ' British Oribatidse,' published by the Eay Society ; tig. 7, Plate 

 XX., from the 'Journal of the Linnean Society ; ' fig. 4, Plate XXI., and fig. 3, 

 Plate XXIL, from the ' Journal of the Eoyal Microscopical Society ; ' fig. 5, Plate 

 XXL, and figs. 1 and 2, Plate XXIL, from the ' Journal of the Quekett Micro- 

 scopical Club.' Fig. 4, Plate XXIL, is drawn after Fiirstenberg by the Editor. 



PLATE XX. (Facing p. 1008) 



ORIBATID.i: 



Fig. 1. Anatomy of Nothrus tlieleproctus (male, dorsal aspect, x about 60). 

 The dorsal portion of the chitinous exo-skeleton, and the fat and muscles 

 which underlie it, have been removed from the abdomen. The internal organs 

 are shown protruding, as they usually do when the creature is opened, as 

 though they were too large to be contained in the ventral exo-skeleton. Part 

 of the oesophagus is seen at the top (the brain having been removed). The 

 preventricular glands (brown) lie on each side of the ctsophagus. The ventri- 

 culus is coloured pink ; part of it and the whole of the casca are covered with 



