SIPHONOPHORES. 397 



^ Tenlilla with a simple ter- 



Coriiiidia ordinate. liiteriiO(l(>s l initial lilammit Stephanomia . 



free, covered oiily witli braols l'ai- ; 



|>(ins aiid goiiostyles at tlip base of i Tenlilla Iricornuale, willi 



tlie si[)lioiis. ' a Iriplc terminal llla- 



mi'iit CrijsUiUodes . 



TtMililia w illi a sim[)le ter- 

 minal lilaiiieiil Ph)illoj)hn.fn. 



Cormidia loose. l*al[ioiis and go- \ 

 nostvles attached to the inleniodes, 



; - 



! a triple 



ment Agalma. 



, . ,1 • , ,■ Tenlilla Iriconiiiate, witli 



between tlie siphons. / 



' '""""le terminal lila- 



II. Suhfamilij : Anthemodin^. 



Siphosome very long and movable. imicli longer than thenec- 

 tosome. Trunk of the siphosome very extensible and contrac- 

 tile, loosely covered with thin scales or foliaceous bracts (rarely 

 with prismatic bracts). 



, Tenlilla with a simple ter- 



Cormidia ordinate. Iiiteruodes l minai lilament Anthenwdes. 



free, covered only with bracts. Pal- ' 



poiis and gonostyles at the base of j Tentilla tricornuate, with 



the siphons. J a triple terminal lila- 



\ ment Cuneolaria. 



Cnidoband nalced, witliout 



„ . , 1 invohicre Halistemma. 



. Tentilla with a V 



! simple termi- ' 



1 nal filament, i Cnidoband envelopped by 

 Cormidia loose. 1 ! a camiKiniilate involii- 



Palpons and go- j \ cre Cupulita. 



noslyles attached ' 



to the internodes, i Tentilla tricor- | Terminal amfiulla of the 



between Ihe si- 1 nuateormul-1 tenlilla. with two late 



plions. I ticornuate, 1 rai horns Aijulmopsis. 



with a triple \ 



or multiple i Terminal ampnlla of the 

 I terminal fila- tentilla, with a corona 



""'"t of eight radial horns. . . Lyclinagalmct . 



Nous allons examiner la classification adoptée par HiECKEL 

 dans son Rapport sur les Siphonophores du « Challenger », en 



