SIPHONOPHORES. 
385 
Cormidia ordinate. Internodes 
free, covered ouly with bracts Pal- 
pons and gonostyles at the base of 
the siphons. 
Cormidia loose. Palpons and go- 
nostyles attached to the inlernodes, 
between the siphons. 
I Tentilla with a simple ter- 
minal filament Stephanonia. 
Tentilla trieornuate, with 
a triple terminal fila- 
ment Crystallodes . 
Tentilla with a simple ter- 
^ minai filament Phyllophysa. 
I Tentilla trieornuate, with 
f a triple terminal fila- 
ment Agalma. 
IL Subfamily : Anthemodinæ. 
Siphosome very long and movable, much longer tlian thenec- 
tosome. Trunk of the siphosome very extensible and contrac- 
tile, loosely covered with thin scales or foliaceous bracts (rarely 
with prismatic bracts). 
. Tentilla with a simple ter- 
Cormidia ordinate. Internodes 
free, covered only with bracts. Pal- 
pons and gonostyles at the base of 
the siphons. 
Tentilla with a 
simple termi- 
, i nal filament. 
Cormidia loose. 
Palpons and go- 
nostyles attached 
to the internodes, \ Tentilla tricor- 
between the si- I nuateormul- 
P^ 0ûS - I ticornuate, 
with a triple 
or multiple 
terminal fila- 
ment. 
minai filament Anthemodes. 
Tentilla trieornuate, with 
a triple terminal fila- 
ment Cuneolaria. 
Cnidoband naked, without 
involucre JHalistemma . 
Cnidoband envelopped bv 
a campanuîate involu- 
cre Cupulita. 
Terminal amplifia of the 
tentilla, with two laté- 
ral horns Agalmopsis. 
Terminal ampulla of the 
tentilla, with a corona 
of eight radial horns. . , 
Lychnagalma. 
Nous allons examiner la classification adoptée par Hæckel 
dans son Rapport sur les Siphonophores du « Challenger », en 
