TABLE 2 in Description of new species of deep water Sthenolepis Willey, 1905 and Neoleanira Pettibone, 1970 (Annelida, Sigalionidae) from off Northern California, with the redescription of Sthenolepis spargens Fauchald, 1972

TABLE 2. Comparative table of the valid species of Neoleanira Pettibone, 1970b (Read & Fauchald 2024), including the geographical and bathymetrical distribution. The number of times in sizes relationships between wide and length is given by ‘×’. N. areolata (McIntosh, 1885)N. magellanica (McIntosh, 1885)N. racemosa (Fauchald, 1972)N. tetragona (Örsted, 1845)N. solitaria n. sp.Type localitySouth of Yedo, Japan San Nicolas Basin, California (synonym Leanira calcis)Off little Wellington Island, ChileGuaymas Basin, Gulf of California, MexicoChristianiafjord, NorwayW of Farallon Islands, California, USADepth (m)280–1,370485–6751,774–2,90040–2,2002,560Median antenna style size compared to its ceratophore5–7× as long8× as long–6× as long8× as longLateral antennae style size compared to prostomium2× as long3× as longShorter1.5× as long2× as longAuricle size compared to median ceratophore¼× as long½× as long½× as long1/3× as long1/3× as longPalps size (reach segment)Segment 19Segment 30–Segment 20Segment 20Tentacular cirri size compared to parapodia4× as long5× as longSimilar lengthSlightly longer3× as longSize of dorsal cirrus from segment 3 compared to the parapodiaSlightly longerAs long as parapodiumSlightly longerSimilarSlightly longerSimple chaetae in posterior neuropodiaAbsentAbsentAbsentAbsentPresentNeurochaetae canaliculatePresentPresentAbsentPresentPresentNeurochaetal handles (distal section)Subdistal spinesSmoothDistal spinesSmoothSubdistal and distal spinesFirst branchiaeSegment 6Segment 7Segment 2Segment 6Segment 2First ctenidial padsSegment 6Segment 7–Segment 6Segment 1Branchiae with a spurlike processPresentAbsentAbsentAbsentAbsentVentral ctenidiaBoot-shapedClavate–ClavateBoot-shapedElytral surface/MarginSmooth/FimbriaeGranular/Smooth–Smooth/FimbriaeSmooth/FimbriaeReferenceMcIntosh 1885; Hartman 1960; Pettibone 1970b; Imajima 2003McIntosh 1885; Pettibone 1970bFauchald 1972; Pettibone 1989Örsted 1845; Pettibone 1970bThis study表2 新梁虫属（Neoleanira Pettibone, 1970b；Read & Fauchald 2024）有效物种比较表，涵盖地理分布与水深分布信息。体宽与体长的尺寸比例倍数以符号"×"标注。 各有效物种依次为：网纹新梁虫（*N. areolata*, McIntosh, 1885）、麦哲伦新梁虫（*N. magellanica*, McIntosh, 1885）、总状新梁虫（*N. racemosa*, Fauchald, 1972）、四角新梁虫（*N. tetragona*, Örsted, 1845）、独居新梁虫（新种，*N. solitaria* n. sp.）。 #### 模式产地 日本江户以南；加利福尼亚圣尼古拉斯盆地（异名*Leanira calcis*）；智利小惠灵顿岛外海；加利福尼亚湾瓜伊马斯盆地，墨西哥；挪威克里斯蒂安尼亚峡湾；美国加利福尼亚法拉隆群岛以西 #### 水深（米） 280–1370；485–675；1774–2900；40–2200；2560 #### 中触手茎与触柄的尺寸比例 5~7倍长；8倍长；6倍长；8倍长； #### 侧触手茎与口前叶的尺寸比例 2倍长；3倍长；略短；1.5倍长；2倍长 #### 耳突与中触柄的尺寸比例 1/4倍长；1/2倍长；1/2倍长；1/3倍长；1/3倍长 #### 触须延伸体节 第19体节；第30–20体节；第20体节； #### 触手须与疣足的尺寸比例 4倍长；5倍长；等长；略长；3倍长 #### 第3体节背须与疣足的尺寸比例 略长；与疣足等长；略长；等长；略长 #### 后部腹疣足的简单刚毛 无；无；无；无；有 #### 沟状神经刚毛 有；有；无；有；有 #### 神经刚毛柄（远端段） 具亚远端棘，光滑；具远端棘，光滑；兼具亚远端与远端棘； #### 第一对鳃着生体节 第6体节；第7体节；第2体节；第6体节；第2体节 #### 第一对栉鳃垫着生体节 第6体节；第7体节；—；第6体节；第1体节 #### 鳃具刺突状突起 有；无；无；无；无 #### 腹栉鳃形态 靴形；棒形；—；棒形；靴形 #### 鞘翅表面/边缘 光滑/具流苏缘；颗粒状/光滑；—；光滑/具流苏缘；光滑/具流苏缘 #### 参考文献 McIntosh 1885; Hartman 1960; Pettibone 1970b; Imajima 2003；McIntosh 1885; Pettibone 1970b；Fauchald 1972; Pettibone 1989；Örsted 1845; Pettibone 1970b；本研究