'518 PROF. A. DENDY AND MISS L. M. FREDERICK ON 
EXPLANATION OF THE PLATES. 
Plate 25. 
(All the figures in this plate are from photographs.) 
rig. 1. Leucosolenia grisea n. sp. R.N. VI. 2L X li. 
2. Leucosolenia protoyenes ITsecliel. I!.N. VIII. 4. X 2. 
'6. AscoUucetta compressa n. sp. R.N. III. 12. X 2. 
4. I'osmaerojysis macliinnoni ^. sp. R.N. IV. 1. X 1|. 
6. Grantiopsis cylindrica Dendy. R.N. VII. la. X SJ. 
6. Grantiopsis cylindrica Dendy. R.N. VII. \b. X 3. 
7. Grantiopsis cylindrica DeuAj. R.N. VI. 17 c. x 2. 
8. Grantiopsis cylindrica Dendy. R.N. 1. 1. X 2. 
9. Grantiopsis cylindrica Dendy \&i:fruticosa nov. R.N. III. 4. X 2. 
10. Lclapin antiqtia n. sp. R.N. VII. 1 e. X 2j. 
11. Ancorina australiensis Carter. R.N. VI. 6«; encrusted by Sponyelia dalzini n. sp., 
R.N. VL6 6. xl. 
12. Reniera aguceduetiis Schmidt. R.N. VII. 3. X 1. 
13. Anchino'e Jictiiioides n. sp. R.N. VI. 4. X 5. 
14. Siymoscejitrella fibrosa Dend3^ R.N. VI. 2. x f . 
15. Megalopastas arenifibrosa n. sp. R.N. VI. 3. X ]%. 
Plate 26. 
Fig. 1. Leucosolenia yrisea n. sp. R.N. VI. 21. 
a. Triradiates, X 150 ; b. Quadriradiate~, X 150. 
Fig. 2. Ascoleucetta compressa a. sp. R.N. III. 12. 
a. Large triradiates, X60; b. Small triradiates, X 150; c-c. Quadriradiates, 
X 150 
Fig. 3. Ascoleucetta compressa u. sp. R.N. III. 12. Diagrammatic vertical section through 
margin, showing canal-system. X 20. 
i.a., inhalant apertures ; d.cor., dermal cortex ; i.e., inhalant canal ; Jl.ch., 
flagellate chamber ; e.r.o., exhalant opening of chamber ; e.r.c, exhalant canal ; 
osc, osculum ; mes., mesoglcea. 
Fig. 4. Ascoleucetta compressa n. sp. R.N. III. 12. Portion of similar section, x 60. 
c.c, collared cells ; p>'''> prosopyle ; tr., large triradiates of dermal cortex{rf.c.) ; 
n.r., apical r.ays of quadriradiates projecting into flagellate chamber and exhalant 
canal. Other lettering as before. 
Fig. 5. Ascoleucetta compressa n. sp. R.N. III. 12. Dermal surface, showing skeleton 
arrangement round inhalant aperture, X 100. 
tr., trichoxea. 
Fig. 6. Vosmaeropsis mackintioni n. sp. R.N. VI. 1. 
a. Large oxea, X 40; b. Subgastral or tubar sagittal triradiates, X 40 ; 
c. Subdermal pseudo-sagittal triradiates, X 40 ; d. Triradiates of the dermal 
cortex, X 40 ; e. Triradiates of the gastral cortex, x 40. 
Fig. 7. Grantiopsis cylindrica Dendj'. R.N. I. 1. 
a. Triradiates of dermal cortex, x 60 ; b. Dermal microxea, x 150; c. Sub- 
gastral quadriradiates, x 150; d. Reduced tubar triradiate, X 150; e. Flead of 
tubar triradiate, showing the two vestigial rays, x 950 ; /. Gastral quadriradiates, 
X 150 ; a.r. apical ray ; y: Oxeote from oscular fringe, x 160 ; h. Oscular tri- 
radiate, X 150. 
