8i 



A few buds of nectophores and remains of detached ones are visible on the nectostem. The 

 nectosome stands diagonally on the siphosome, probably through contraction. The latter consists 

 of two siphons of which the second is still very young. Both show splendid tentilla type II of 

 which we have given the description above. A young bract, 9 palpons and their palpacles belong 

 to the specimen. No reproductive organs were to be seen. We give on purpo.se a sketch of 

 Cat. S8 y. (PI. XIV, fig. 107) to show how verj- different a specimen looks when the nectophores 

 are preserved on the stem. The nectosome has here a length of about i i mm. The pneuma- 

 tophore is exceedingly small; purple pigment is also to be found and a few buds of nectophores. 

 The pneumatophore and the buds are insufficiently indicated in our sketch. Of the shape of the 

 nectophores we cannot say any thing definite, as it is very much altered through preservation. 

 Two are situated on one side, three on the other. As no other traces were to be seen on the 

 nectosome, we suppose this nectosome for once to be complete. 



The siphosome consists of three siphons each with their tentilla type II, the two oldest 

 with extended tentacle. They are covered by polygonal bracts, their shape being characteristic 

 of those in Crystalloinia Dana. Palpons, remains of lost bracts, young bracts of the same, were 

 all visible, reproductive organs only were wanting. 



Cat. ij6 F. (PI. XI\', fig. loS) again shows a contracted muscular nectosome and an 

 elongated threadlike siphosome, exactly the contrary of Cat. 88 J. In the nectosome (length 

 2Y.3 mm.) mature nectophores are absent and the pneumatophore (which in our sketch is directed 

 to the other side and therefore only half visible) is small. The siphosome is well-developed 

 (length 8 mm.) and shows four mature siphons each bearing numerous tentilla tvpe II. We 

 looked in vain for any reproductive organs. Bracts, remains of detached bracts, palpons and 

 their palpacles are situated on the siphosome. 



The great difference between Cat. 176F. and the following number i£iA. is the presence 

 of a fifth siphon with absolutely different tentilla from the four other ones. 



In Cat. 151 A. (PI. XIV, fig. 109) the nectosome has a length of 6 mm.; two nectophores 

 are left on the nectosome, together with buds of young nectophores and remains of detached 

 ones. The siphosome (length i 7 mm.) shows five siphons at regular distances one from the other, 

 four with tentilla type II, the youngest fifth with tentilla IV. Palpons, palpacles, bracts are all 

 scattered on the stem; a great many are lost. A further pecularity of Cat. 151 A. is the presence 

 of three female gonostyles near the base of the three youngest siphons. This is interesting as in 

 former numbers no trace was to be seen. We suppose, however, that the\- were developed, although 

 so very little differentiated from other buds on the .siphosome, that they could not be recognized. 

 In our series of the different specimens it can be seen how female and even male gonophores 

 (Cat. 88 G.) are also developed on the same third siphon in Cat. 88 D., 88 0., 88 G., 88 B. 



In Cat. i-;i E. we found in the youngest mature siphon an extended tentacle with tentilla 

 type III, identical with the same in group I. Here again we suppose that this tentacle had 

 detached itself in Cat. 151 A. The same can be seen in the table for many other specimens. 



The following numbers .25 G., .25 /^, i $1 E. all show three mature siphons with tentilla 

 type II and one youngest with tentilla type I\' (151 E. also with tentilla type III). We suppose 

 that the most distal and oldest siphon had dropped off. 



SIBOGA-EXPEDITIE IX. II 



