PLATE XLV. 



PAGE 



Fig. 1. Suberites senilis, \eivge tylostyius ; x 66, . . , . 209 



Fig. la. Smaller tylostylus ; x 190. 

 Fig. 1&. Part of large tylostylus ; x 190. 



Fig. 2. Suberites durissimus, large sub tylostylus ; x 66, . . . 204 



Figs. 2a, 26, 2c. Smaller tylostyU; x 190. 

 Figs. 2(^, 2e. Bases of larger spicules ; x 190. 



Fig. 3. Suberites per fectus, large tY\os.tj\vi&; x 66, . . , .201 



Fig. 3a. Smaller tylostylus ; x 190. 

 Fig. 36. Base of larger tylostylus ; x 190. 



Figs. 4, 4a. Suberites mollis, large tylostyli (fig. 4a, a portion only); x 66, . 205 



Fig. 46. Base of large tylostylus ; x 190. 

 Fig. 4f. Smaller tylostylus ; x 190. 



Fig. 5. Suberites caminatus, Isxge iy\o?,tYhxii ; x 66, . . . . 198 



Figs. 5a, 56. Smaller tylostyli ; x 190. 

 Figs. 5c, 5rf. Bases of large tylostyli ; x 190. 



Fig. 6. iy^HiemaaVZon (?) %a^ma, large tylostylus ; y. QQ, . . .168 



Fig. 6a. Base of large tylostylus ; x 190. 

 Fig. 66. Smaller tylostylus ; x 190. 



Fig. 7. Suberites antarcticus, large tylostylus ; x 66, . . . . 202 



Figs. 7a, 76. Bases of large tylostyli; x 190. 

 Figs. 7c, 7(i. Smaller tylostyli ; x 190. 



Fig. 8. Latrunculia bocagei, stylus ; x 190, . . - . . . 238 



Fig. 8a. Discaster; x 280. 



Fig. 9. Latrunculia apicalis {Station 320), stylns ; x 190, . . . 235 



Fig. 9a. Discaster; x 280. 



Fig. 96. Large whorl of discaster, fuU view; x 280. 

 Fig. 9c. Discaster (Kerguelen) ; x 280. 



Fig. 10. Latrunculia brevis, stylus ; xl90, . . . . .237 



Fig. 10a. Discaster; x 280. 



Fig. 11. Spirastrella pajnllosa, larger tylostylus ; x 190, . . . 233 



Figs. 11a, 116. Smaller tylostylus and subtylostylus, from surface ; x 190. 

 Figs, llc-11^. Spined spirulte ; x 500. 



Fig. 12. Spirastrella decumbens, tylostylus ; x 190, . . . . 229 



Figs. 12a-12r;. Spined spirulse ; x 500. 



Fig. 13. Sjnrastrella solidu, tylostylus ; x 190,. .... 231 



Figs. 13a-13e. Spined spirulse ; x 500. 



Figs. 14, 14a, 146. Spirastrella massa, subtylostyli and stylus; x 190, . 230 



Figs. lie-lAk. Spined spirulse ; x 500. 



Fig. 15. Suberites axiatus, large tylostylus ; x 66, . . . . 203 



Fig. 15a. Smaller tylostylus ; x 190. 

 Figs. 156, 15c. Bases of two of the larger tylostyli; x 190. 



