W. G. Van JVame — Bermuda Aseldians. 405 



Figure 34. — Didemnum atrocanum, n. sp. Zooid seen from the right side. 



X 32. Page 359. 

 Figure 35. — Didemnum savignii Herduiau. Zooid seen from the left side. x 32. 



Page 358. 

 Figure 36. — Didemnum soUdum, u. sp. Zooid seen from the right side. x 32. 



Page 358. 

 Figure 37. — Didemnum lucidum, n. sp. Zooid seen from the left side. No 



reproductive organs developed. x 32. Page 360. 

 Figure 38. — Didemnum orbiculatum, n. sp. Zooid seen from the left side. The 



female reproductive organs only are developed, x 32. Page 361. 



Plate LIT. 

 Figure 39. — Leptoclinum sjjeciosum, var. nov. bermudense. Spicules. x 450. 



The smallest spicules were about the branchial orifices. (See also Figure 



42.) Page 364. 

 Figure 40. — Leptoclinum albidum, var. luteolum Verrill. From Vineyard Sound, 



Massachussetts. Spicules, x 450. (Introduced for comparison with the 



Bermuda forms.) Page 363. 

 Figure 41. — Leptoclinum albidum Verrill. From the Bay of Fundy. Spicules. 



X 450. (Introduced for comparison.) Page 363. 

 Figure 42. Leptoclinum siieciosum var. nov. bermudense. Spicules ( x 450) from 



a different colony from figure 39, showing forms with blunt and broken 



points. Page 364. 

 Figures 43 and 44. — Leptoclinum speciosum var. nov. hamiltoni. Spicules from 



two different colonies, x 450. (See also figure 47.) Page 365. 

 Figure 45. — Leptoclinum s/;ec«ostf)n, var. nov. j;ageh'. Spicules. x450. (The 



small spicules in the right hand part of the figare were in small groups 



alongside the bodies of the zooids, not scattered among the other spicules.) 



Page 364. 

 Figure 46. — Leptoclinum speciosum, var. nov. acutilobatuni, Spicules, x 450. 



Page 365. 

 Figure 47. — Leptoclinum speciosum, var. nov. hamiltoni. Spicules ( x 450) with 



thicker points than those shown in figures 43 and 44. Page 365. 

 Figure 48. — Lejifcolinum specios^un, vav. nov. •somersi. Spicules. x450. Page 



366. 

 Figure 49. — Leptoclinum, speciosum, var. nov. harringtonense. Spicules. x 450. 



Page 365. 

 Figure 50. — Leptoclinum speciosum, var. nov. bermudense. Zooid seen from left 



side. X 32. Page 364. 

 Figute 51. — LeiJtoclinum speciosum, var. nov. harringtonense. Zooid from the 



same colony as the spicules shown in figure 49. x 32. Page 365. 

 Figure 52. — Leptoclinum speciosum, var. nov. acutilobatum. Zooid from the 



same colony as the spicules shown in figure 46. x 32. Page 365. 



Plate LIII. 

 Figure 53. — Botrijlloides nigrum, var. nov. concolor. Zooid seen from the right 

 side. The male reproductive organs only are developed on the right side. 

 On the left side a large egg is present just anterior to the testes, x 32. 

 Page 378. 



