TABLE 1 in Black Corals (Anthozoa: Antipatharia) from the Southwestern Atlantic
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TABLE 1. Comparison between species of the genus Trissopathes Opresko, 2003. Character/ SpeciesSpeciesT. tristichaT. tetracradaT. pseudotristichaTrissopathes sp.T. cf. tristichaLength of posterolateral pinnules1–1.5 cm0.5–1 cm1–2.6 cm0.7–2.2 cm, usually up to 1.3 cm0.7–1 cm, but up to 2 cmLength of anterior pinnulesUsually 0.5 cm, sometimes up to 1 cmEqual to or slightly smaller than posterior-laterals0.5–1 cm0.5–1.5 cm0.3–0.7 cm, but up 1 cmBasal diameter of subpinnules0.3 mm0.15–0.2 mm0.15 mm0.17–0.4 mmUp to 0.5 mmSubpinnulestwo or more pairs per anterior pinnuleusually one (sometimes two) per anterior pinnuleusually 1 pair (sometimes only one) per anterior pinnule2 to 6 per anterior pinnule2 to 6 per anterior pinnuleDistance between pinnules in the same row?2–5 mm (mostly 3–4 mm)3–4 mm1.5–4 mm1.5–4 mmN° of pinnules per cm10–141412–1412–1510–15, but up to 18 in MNRJ 8581Length of spinesup to 0.28 mm0.08–0.12 mm0.05–0.13 mm0.017–0.05 mm0.05–0.15 mm
表1 2003年Opresko发表的Trissopathes属(Trissopathes)各物种形态特征比对表 | 性状/物种 | T. tristicha | T. tetracrada | T. pseudotristicha | Trissopathes未定种 | T. tristicha近缘类群 | | --- | --- | --- | --- | --- | --- | | 后侧羽枝长度 | 1~1.5厘米 | 0.5~1厘米 | 1~2.6厘米 | 0.7~2.2厘米,通常最长可达1.3厘米 | 0.7~1厘米,最长可达2厘米 | | 前侧羽枝长度 | 通常为0.5厘米,偶可达1厘米 | 与后侧羽枝等长或略短 | 0.5~1厘米 | 0.5~1.5厘米 | 0.3~0.7厘米,最长可达1厘米 | | 亚羽枝基部直径 | 0.3毫米 | 0.15~0.2毫米 | 0.15毫米 | 0.17~0.4毫米 | 最长可达0.5毫米 | | 亚羽枝数量(每前侧羽枝) | 2对及以上 | 通常1对,有时为2对 | 通常1对,有时仅单根 | 2~6个 | 2~6个 | | 同列羽枝间距 | 未知 | 2~5毫米(多数为3~4毫米) | 3~4毫米 | 1.5~4毫米 | 1.5~4毫米 | | 每厘米羽枝数 | 10~14个 | 14个 | 12~14个 | 12~15个 | 10~15个,其中MNRJ 8581标本可多达18个 | | 棘突长度 | 最长可达0.28毫米 | 0.08~0.12毫米 | 0.05~0.13毫米 | 0.017~0.05毫米 | 0.05~0.15毫米 |



