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. 2017 Oct 13;5:e3863. doi: 10.7717/peerj.3863

Table 3. Morphological characters examined for this study.

Character Chrysaora quinquecirrha Chrysaora chesapeakei
Macromorphology
Bell diameter (average/median) 114 mm (59–176 mm) 62.2 mm (17–175 mm)
Tentacles/octant (average ± 95% CI) 5.28 ± 0.45 3.07 ± 0.07
Tentacles/octant (range) 4.5–6.75 2.75–3.43*
Lappets/octant (average ± 95% CI) 6.26 ± 0.46 4.08 ± 0.06
Lappets/octant (range) 5.5–7.75 3.75–4.8
Maximum oral arm length (average ± 95% CI) 1.24 ± 0.27 times BD 3.00 ± 0.39 times BD
Maximum oral arm length (range) 0.68–1.81 times BD 1.21–5.58 times BD
Lappets in size classes Yes, rhopalar lappets larger No, lappets of similar size
Rhopalia number 8 8
Rhopaliar pits Deep Deep
Septa shape Bent Bent
Septa termination Near tentacle Near tentacle
Spiral oral arms? No No
Manubrium length Elongated Elongated
Manubrium mass Light Light
Warts/papillae Inconspicuous Inconspicuous
Maximum bell diameter <20 cm^ <20 cm^
Bell mass Light Light
Dominant color White, colorless Variable, white, colorless or red/brown bell
Exumbrellar marks Minor bell marks in some cases Variable, red or brown star shape conspicuous in some cases
Oral arm color None Variable, oral arms can be colored red/brown
Quadralinga None None
Gonads in pouch? Yes Yes
Gonad shape Not finger-like Not finger-like
Cnidome
A isorhiza—length vs. width (avg) 20.25 ± 0.38 × 11.27 ± 0.37 μm 26.21 ± 0.50 × 19.74 ± 0.55 μm
A isorhiza—length vs. width (range) 15.01–22.9 × 9.07–13.16 μm 20.54–33.79 × 15.03–29.77 μm
a isorhiza—length vs. width (avg) 8.27 ± 0.19 × 4.22 ± 0.07 μm 7.88 ± 0.13 × 4.29 ± 0.07 μm
a isorhiza—length vs. width (range) 6.56–9.77 × 3.65–4.95 μm 6.32–9.9 × 3.59–5.46 μm
O isorhiza—length vs. width (avg) 21.64 ± 0.38 × 18.92 ± 0.77 μm 23.10 ± 0.43 × 20.75 ± 0.62 μm
O isorhiza—length vs. width (range) 17.64–23.97 × 16.08–21.74 μm 17.88–27.51 × 16.07–24.75 μm
Birhopaloids—length vs. width (avg) 13.58 ± 0.19 × 8.09 ± 0.09 μm 12.73 ± 0.22 × 8.29 ± 0.13 μm
Birhopaloids—length vs. width (range) 12.31–14.86 × 6.96–8.90 μm 10.96–15.27 × 7.1–10.23 μm

Notes:

Characters in bold are species diagnostic. All macromorpholgical characters and character states (except maximum oral arm length) are taken from Gershwin & Collins (2002). Cnidome terminology is taken from Morandini & Marques (2010), with average examples in Fig. 8C and Fig. S1.

*

If two outlier specimens are included, the upper range is six tentacles/octant.

^

Although maximum bell diameter for Chrysaora quinquecirrha has been recorded as great as 40 mm (Gershwin & Collins, 2002; Morandini & Marques, 2010), no animals >20 mm were observed in this study.