Of the entirely altered siphosome only six siphons are left, a few palpons, tentacles and 

 tentilla and gonostyles with immature gonophores. 



The stem of the siphosome is absolutely contracted; therefore exceedingly muscular. All 

 the different side-branches with or without siphons are now situated close to one another. The 

 siphons show clearly their villi ; the tentilla consist of one spiral cnidoband, built of two kinds of 

 cnidocysts, ending in a filament consisting of a multitude of small cnidocysts (PI. X, fig. 84). 



It should be borne in mind that figures such as those given for preserved material give 

 an absolutely different impression of Forskalia when alive. 



41. Forskalia Edwardsi Koll. PI. X, figg. 82, 83. 



= Forskalia Edwardsii Koll. 53. 

 = Stephanomia contorta Vgt. 51. 

 = Apolenna contorta Vgt. 53. 

 = Forskalia Edtvardsii Kef. Ehl. 61. 

 = Forskalia Edwardsii Cls. 63. 

 =^ ? Forskalia atlantica Fewk. 82. 

 ^ Forskalia Edzvardsii Hkl. 88^. 



Stat. 136. Ternate-anchorage. Cat. 215 J. formald. 4°/^. One specimen of '1 Forskalia Ed- 



zuardsii Koll. 

 Stat. 165. Anchorage on North-east side of Daram-island (False Pisangs), East-coast of Misool. 



Cat. 46, 171, 181, 182, 183, 184, 185, 186, 187. formald. 4°/^. 9 specimens. 



The 9 specimens belonging to the same station are all comparatively in the same state 

 of preservation ; their length, measured from the pneumatophore to the aperture of the eldest 

 siphon, varies from i — 2 cm., their breadth from 4 — 5 mm. 



They are not absolutely colourless, as the pigment-spots in the upper part of the pneu- 

 matophore are well-developed. Unfortunately the pigment near the canals in the nectosac has 

 been destroyed, owing to the influence of the preserving fluids. 



We give a sketch of Cat. 183 (PI. X, fig. 82) which shows that a great many more 

 appendages are left than in Forskalia contorta. Through contraction, however, every appendage 

 has lost its natural place on the stem. That is why the general appearance as is given in 

 PI. X, fig. 82, is such a very singular one. The nectosome has surely been much longer, as its 

 stem is very broad and muscular and we saw in the living specimens how it may become 

 nearly thread-like. 



The nectophores are wedge-shaped, a characteristic of Forskalia Edii'ardsi\ this is to 

 be seen in the other specimens, the mature nectophores absolutely failing in Cat. 183. The 

 canals of the nectosac are clearly seen. 



The pedicles of the siphons are in some specimens not quite contracted, the original 

 rounded shape of the siphosome in preserved specimens therefore does not differ so much from 

 living ones. Many palpons, a few bracts are scattered between the other appendages on the stem. 

 A few bracts are still well-preserved and have the same shape as Kolliker describes 53. The 

 tentilla and their tentacle are also present in great number; they do not differ from those in 

 Forskalia contorta. 



SIBOGA-EXPEDITIE IX. D 



