What's the difference between nectostem and siphonophore?
Nectostem
Definition:
(n.) That portion of the axis which bears the nectocalyces in the Siphonophora.
Example Sentences:
Siphonophore
Definition:
(n.) One of the Siphonophora.
Example Sentences:
(1) Slow swimming in siphonophores is more economical than the rapid responses.
(2) Sarsia, Euphysa, and other hydromedusae have been studied by electrophysiological techniques and are found to have nonnervous conducting epithelia resembling those described earlier for siphonophores.
(3) The trachyline medusa Aglantha and the small siphonophore Chelophyes also show rapid escape responses; in Aglantha these are driven by a specialized giant axon system lacking in other hydromedusae, and in Chelophyes.