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Table 3 Morphological data on the cnidosac and cnidosac-like structures of nematocyst sequestering species evaluated in this study

From: Comparative morphology and evolution of the cnidosac in Cladobranchia (Gastropoda: Heterobranchia: Nudibranchia)

Species

Musculature

Proliferation zone

Entrance/Channel

Exit

Constriction near the tip of the cnidosac

Hancockia uncinata

multi-layered

No

Entrance

Exit

Absent

Hancockia schoeferti

thick

No

Entrance

Exit

Absent

Hancockia californica

multi-layered

No

Entrance

Exit

Absent

Aeolidia papillosa

multi-layered

Yes

Channel

Pore

Absent

Bulbaeolidia alba

Absent

No

Unobserved

Unobserved

Absent

Anteaeolidiella chromosoma

multi-layered

Yes

Inferred

Pore

Absent

Berghia stephanieae

multi-layered

Yes

Inferred

Unobserved

Absent

Cerberilla amboinensis

multi-layered

Yes

Channel

Pore

Present

Limenandra confusa

multi-layered

Yes

Inferred

Exit

Present

Spurilla neapolitana

multi-layered

Yes

Entrance

Unobserved

Absent

Austraeolis stearnsi

single layer

No

Unobserved

Pore

Present

Caloria elegans

two layers

Yes

Unobserved

Unobserved

Absent

Cratena peregrina

multi-layered

Yes

Channel

Exit

Absent

Facelina rubrovittata

multi-layered

No

Unobserved

Exit

Present

Favorinus auritulus

multi-layered

Yes

Unobserved

Exit

Absent

Glaucus atlanticus

multi-layered

Yes

Unobserved

Unobserved

Inconclusive

Learchis evelinae

multi-layered

Yes

Entrance

Exit

Absent

Palisa papillata

multi-layered

Inconclusive

Unobserved

Exit

Inconclusive

Phidiana lottini

multi-layered

No

Unobserved

Exit

Inconclusive

Phidiana lynceus

multi-layered

Yes

Unobserved

Exit

Present

Pruvotfolia pselliotes

multi-layered

Yes

Unobserved

Exit

Absent

Pteraeolidia ianthina

multi-layered

Yes

Channel

Exit

Absent

Dondice occidentalis

single layer

Yes

Entrance

Unobserved

Absent

Hermissenda crassicornis

multi-layered

Inconclusive

Entrance

Exit

Absent

Noumeaella sp.

multi-layered

Yes

Entrance

Exit

Absent

Phyllodesmium cf. magnum

single layer

No

Unobserved

Unobserved

Absent

Phyllodesmium colemani

single layer

No

Unobserved

Unobserved

Absent

Phyllodesmium jakobsenae

single layer

Yes

Entrance

Unobserved

Absent

Phyllodesmium koehleri

single layer

No

Unobserved

Unobserved

Absent

Phyllodesmium macphersonae

single layer

No

Entrance

Unobserved

Absent

Ziminella salmonacea

multi-layered

Yes

Channel

Unobserved

Absent

Itaxia falklandica

multi-layered

Inconclusive

Unobserved

Unobserved

Absent

Microchlamylla gracilis

single layer

Inconclusive

Unobserved

Unobserved

Absent

Embletonia gracilis

Absent

No

Unobserved

Unobserved

Absent

Embletonia pulchra

Absent

No

Unobserved

Unobserved

Absent

Cuthona albocrusta

single layer

Yes

Entrance

Unobserved

Absent

Cuthona caerulea

single layer

Inconclusive

Entrance

Exit

Absent

Cuthona kanga

multi-layered

Yes

Unobserved

Exit

Absent

Fiona pinnata

Phestilla sp.

multi-layered

Inconclusive

Entrance

Exit

Absent

Tergipes antarcticus

Tergipes tergipes

Calmella cavolini

single layer

Yes

Entrance

Exit

Absent

Edmundsella pedata

multi-layered

Yes

Entrance

Unobserved

Absent

Flabellina affinis

multi-layered

Yes

Entrance

Unobserved

Absent

Paraflabellina ischitana

multi-layered

Yes

Entrance

Exit

Absent

Paraflabellina gabinierei

multi-layered

No

Entrance

Unobserved

Absent

Luisella babai

multi-layered

No

Unobserved

Unobserved

Absent

Flabellinopsis iodinea

multi-layered

Yes

Entrance

Exit

Absent

Notaeolidia depressa

single layer

No

Entrance

Exit

Absent