W. G. Van Name — Bermuda Ascidians. 409 



Figure 113.— Distoma olivaceum, n. sp. Group of heads seen from above. Page 



344. 

 Figure 114. — Didemnum atrocanum, n. sp. Colony seen from above. Page 359. 

 Figure 115 — Didemnum porites, n. sp. Colony incrusting a calcareous alga. 



Page 360. 

 Figure 116. — Ecteinascidia turbinata Herdman. Group of young individuals 



connected by stolons. Page 338. 

 Figure 117. — Distoma clarum, n. sp. Colony seen from above. Page 345. 

 Figure 118. — Distoma convescum, n. sp. Small colony seen from above. Page 



342. 

 Figure 119. — Didemnum solidum, n. sp. Entire colony. Page 358. 

 Figure 120 and 121. — Diandrocarpa botryllopsis, n. sp. Showing the appearance 



of preserved specimens in which the zooids are much contracted. Page 383. 



Plate LX. 



Figure 122.— Rhodozona picta (Verrill). Colony attached to a gorgonian. 

 About three-fourths the natural size. Page 335. 



Figure 123. — Diandrocarpa botryllopsis, n. sp. Photograph from a living colony 

 growing on a piece of limestone. Owing to the transparency of the test, 

 the limits of the colony are visible only by the row of white pigmented 

 end-bulbs of the test vessels, these being developed chiefly at the margin of 

 the colony. The apertures of the zooids are mostly expanded, the atrial 

 being the largest. The branchial apertures are also distinguished by the 

 larger amount of white pigment about them. Enlarged between two and 

 three times. Page 383. 



Figure 124. — Diplosoma macdonaldi Herdman. Fragment of a colony. x3. 

 Page 368. 



Plate LXI. 



Figure 125. — Botrylloides nigrum Herdman. Photograph of the surface of a 

 rock on which two different color varieties of this species are growing. 

 The prevailing color of the elongated colony on the right is purple, with 

 white markings. Of the small colonies on the left, it is pale blue gray, 

 with white markings. The photograph is from the living and expanded 

 animals, enlarged nearly three times. Page 374. 



Figure 126.— Diplosomoides fragile, n. sp. Fragment of a colony showing the 

 upper surface. Nat. size. Page 370. 



Figure 127. — Didemnum orbiculatum, n. sp. and Leptoclinuni speciosum Herd- 

 man, var. nov. hamiltoni. Photograph from living colonies enlarged nearly 

 three times. The common cloacal aperture of the Didemnum is beside the 

 letter a. One of the cloacal apertures of the Leptoclinum is beside the 

 letter b. Pages 361 and 365. 



Figure 128. — Didemnum orbiculatum. Fragment of a colony taken from a 

 preserved specimen. Enlargement same as last figure to show the contrac- 

 tion incident to preservation. Page 361. 



