Table 6. Synoptic table of exoskeletal characteristics in Bougainvilliidae.

Inner layer (=perisarc)									Outer layer (=exosarc)
Species	Smooth	Laminated	Rigid	Reticulated	Annulations	Corrugated	Coverage	In gonophore	Rugose	Organic or inorganic material	Coverage	In gonophore	Figures
Bimeria vestita	–	*	*	–	On pedicels	Spirally in origin of side-branches	Hydrorhiza to tentacle base	p (not rigid)	*	p	Hydrorhiza to tentacle base	p (thinner as a sheath)	5
Bougainvillia muscus	*	*	–	*	–	x	Hydrorhiza to whorl of tentacles	x	*	p	Hydrorhiza to whorl of tentacle	x	6
Bougainvillia rugosa	*	*	–	*	–	x	Hydrorhiza to whorl of tentacles	p	*	p (rigid appearance)	Hydrorhiza to whorl of tentacles	p	6
Bougainvillia sp.	–	*	–	–	–	Irregularly	Hydrorhiza to whorl of tentacles	p (not laminated)	–	p	Hydrorhiza to whorl of tentacle	x	7
Dicoryne conferta	–	–	–	–	–	*	Hydrorhiza to lower part of hydranth	p	*	p	Hydrorhiza to lower part of hydranth	p	7
Garveia annulata	–	*	*	–	–	*	Hydrorhiza to whorl of tentacles	p (not rigid)	*	p	Hydrorhiza to whorl of tentacles	x	8
Garveia franciscana	–	*	–	*	On gonophore pedicels and origin of side-branches	Irregularly	Hydrorhiza to whorl of tentacles	p (not rigid)	*	p	Hydrorhiza to whorl of tentacles	p	9
Garveia gracilis	–	*	–	*	Origin of side-branches	–	Hydrorhiza to whorl of tentacles, not rigid at hydranth	x	*	p	Hydrorhiza to whorl of tentacles	x	10
Garveia nutans	–	*	*	–	–	Irregularly	Hydrorhiza to whorl of tentacles, and hydranth (not rigid)	p (not rigid)	*	p (rigid appearance)	Hydrorhiza to whorl of tentacles	p	10
Pachycordyle michaeli	–	*	–	–	–	*	Hydrorhiza to base hydranth	p (laminate)	ø	ø	ø	ø	11
Parawrightia robusta	–	*	–	*	–	Irregularly	Hydrorhiza to whorl of tentacles, not rigid in hydranth	x	*	p (rigid appearance)	Hydrorhiza to whorl of tentacles	x	12
Rhizorhagium sp.	–	*	–	–	–	Hydrocaulus	Hydrorhiza to tentacles	x	*	p (not rigid)	Hydrorhiza to hydranth	x	13

Notes.

p

present

x

not data

ø

without layer

-

without feature

*

with feature