404 W. G. VanJVaoie — Bermuda Ascidians, 



Figure 12. — Cysfodytes violaceus, n. sp. Zooid (much contracted) seen from the 



left dorsal aspect, containing two large eggs. Rectum containing pellets of 



undigested matter, x 32. Page 348. 

 Figure 13. — Cystodytes violaceus. Small si^icules which are scattered in the test. 



X 40. Page 348. 

 Figure 14. — Cystodytes violaceus. Large spicules forming the capsules about 



the zooids, but occurring to some e.xtent elsewhere in the test, x 40. 



Page 348. 



Plate XLIX. 



Figure 15. — Distaplia bermudensis, n. sp. Zooid seen from the right side, 

 showing the muscle bands of the mantle. x 32. i. fr=intermediate trans- 

 verse vessel of branchial sac. Page 349. 



Figure 16. — Distoma conveorum, n. sp. Zooid seen from the left side, showing 

 arrangement of brown pigment spots on the mantle, x 32. Musculature 

 of mantle not shown. Page 342. 



Figure 17. — Cystodytes draschii Herdman. Zooid seen from the left side. x 32. 

 Page 347. 



Figures 18 and 19. — Distaplia bermudensis, n. sp. Colony of the flattened in- 

 crusting form showing the arrangement of the zooids. Side and top view. 

 X 2. Page 349. 



Plate L. 



Figure 20. — Aina7^oucium bermudce, n. sp. Zooid with short post-abdomen, 

 seen from the right side. Dorsal languets not represented in the figure. 

 Ovary not develojied. e, c. =large ectoderm cells on the mantle. x 32. 

 Page 352. 



Figure 21. — Amaroueium exile, n. sp. Zooid seen from the left side containing 

 a large embryo. Dorsal languets not represented, x 32. Page 354. 



Figure 22. — Syniplegma viride Herdman. Colony, two-thirds the natural size. 

 (After Herdman. ) Page 378. 



Figure 23. — Echinoclinum verriUi, n. sp. Entire colony incrusting a branching 

 alga, showing distribution of zooids and spicules, x 2. Page 372. 



Figure 24. — Echinoclinum verrilli. Zooid seen from the left side. No repro- 

 ductive organs developed, x 32. Page 372. 



Figure 25. — Echinoclinum verrilli. Spicules from the test. x 225. Page 372. 



Plate LI. 



Figure 26. — D idemnum lucidum, n. s,ip. Spicules, x 450. Page 360. 

 Figure 27 

 Figure 28 



showing distribution of zooids and spicules, x 2. Page 360. 



Figure 29 

 Figure 30 

 Figure 31 

 Figure 32 

 Figure 33 



-Didemnum savignii Herdman. Spicules, x 450. Page 358. 

 -Didemnum lucidum, n. sp. Colony incrusting a branching alga, 



— Didemnum porites, n. sp. Spicules, x 450. Page 360. 



— Didemnum atrocanum, n. sp. Spicules, x 450. Page 359. 



— Didemnum solidum, n. sp. Spicule, x 450. Page 358. 



— Didemnmn orbiculatum, n. STp. Spicules, x 450. Page 361. 



— Didemnum porites, n. sp. Zooid seen from the left side. x 32. 



Page 360. 



