408 W. G. Van Name — Bermuda Ascidians. 



Figure 91.— il/icrocosj>iKs miniatus Verrill. Outline of individual (removed 

 from the test) showing alimentary and reproductive organs of both sides. 

 Two-thirds the natural size. Page 396. 



Figures 92, 93 and 94. — Polycarpa obteeta Traustedt. Outlines of three 

 individuals (removed from the test), showing alimentary and reproductive 

 organs of both sides. Two-thirds the natural size. Page 386. 



Figure 95. — Microcosmus miniatus Verrill. Small piece of the branchial sac 

 from one of the spaces between two folds near the middle of the body. 

 X 24. Page 396. 



Plate LVIII. 



Photographs of colonies of Compound Ascidians ; all natural size. 



Figure 96. — Amaroucium bermudce, n. sp. Three colonies seen from the side. 



Page 352. 

 Figure 97. — Amaroucitiin bermudce, n. sp. Colony seen from above. Page 353. 

 Figure 98. — Amaroucium exile, n. sp. Two colonies seen from above. Page 



354. 

 Figures 99 and 100. — Cystodytes draschii Herdman. Colony seen from above. 



Page 347. 

 Figure 101. — Cystodytes draschii Herdman. Colony see from the side. A 



portion is cut away, showing the white calcareous capsules sui-rounding 



the zooids. Page 347. 

 Figure 102. — Pohjsyncraton ametliystetim, n. sp. Colony attached to a piece of 



sponge. Seen from above. Showing the characteristic distribution of the 



spicules on the surface of the colony. Page 366. 

 Figure 103. — Diplosoma atropunctatuni, n. sp. Colony attached to a fragment 



of coral (Porites). The same specimen is shown enlarged in figure 137. 



Page 370. 

 Figure 104. — Distoma convexum, n. sp. Colony (sectioned) seen from above and 



from one side, showing the cut surface. Page 342. 

 Figures 105 and 106. — Distoma obscuratum, n. sp. Two colonies seen from 



above. Page 343. 

 Figure 107. — Distoma capsulatum, n. sp. Two colonies seen from above. Page 



341. 



Plate LIX. 

 Photographs of colonies of Compound Ascidians ; all natural size. 



Figure 108. — Distaplia bermudensis, n. sp. Flat incrusting colony seen from 

 above. Page 349. 



Figure 109. — Michaelsenia tincta, n. sp. Colony seen from above. Page 381. 



Figure 110. — Boti-ylloides nigrum Herdman, var. nov. planum. Colony incrust- 

 ing a piece of limestone. Page 377. 



Figure 111. Distaplia bermudensis, n. sp. A capitate and an irregularly 

 incrusting colony, the former seen from the side, the latter from above. 

 Page 349. 



Figure 112. — Didemnum savignii Herdman. Colony seen from above. (A small 

 piece has been removed.) Page 358. 



