Table 1 in A new species of giant Eunice (Eunicidae, Polychaeta, Annelida) from the east coast of Australia
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Table 1. Main morphological features that differentiate Eunice dharastii sp. nov. from the closest species. Eunice dharastii sp. nov.Eunice aphroditois (Pallas, 1788)Eunice flavopicta Izuka, 1912Eunice kinbergi Ehlers, 1868Data sourcePresent descriptionFauchald 1992Izuka 1912; Fauchald 1992Fauchald 1992Type localityAustralia, New South Wales Nelson Bay, Port Stephens Main BeachSri LankaJapan1South Africa, Cape of Good HopeIrregular articulation of prostomial appendages (antennae and palps)PresentAbsentPresentPresentRegion median and lateral antennae reach when folded backholotype- chaetiger 4 (M), 5 (L)paratype- chaetiger 9 (M), 9 (L)posterior end of peristomium (M, L)chaetiger 2 (M), chaetiger 1 (L)2chaetiger 1 or 4 (M), chaetiger 1 (L)Branchiae present from chaetiger106528-9Length of best developed branchiae in relation to notopodial cirriDistinctly longerDistinctly longerDistinctly longerAbout as long asDorsal fleshy knob on anterior chaetal lobePresentAbsentAbsentAbsentShape of notopodial cirriPendulous (sensu Fauchald 1992); abrupt tapering from inflated basesSmooth tapering from inflated basesPendulous (sensu Fauchald 1992); smooth tapering from with inflated basesSmooth tapering from slightly inflated basesDirection of teeth of compound chaetaeBoth directed laterallyNot describedProximal directed laterally, distal directed distallyBoth directed laterallyRelative length of distal and proximal teeth of compound chaetaeAnterior both similar in length, median and posterior distal tooth much shorted than proximal toothNot describedDistal tooth shorter than proximal tooth3, variation not describedBoth similar in length or distal tooth longer than proximal toothShape of the distal end and direction of teeth of the subacicular hookTapering to small head with both teeth directed distallyTapering to small head with both teeth directed distallyHead bent with both teeth directed laterallyDistinct head with proximal tooth directed laterally, distal tooth directed distallyShape and relative size of proximal and distal teeth of subacicular hookProximal tooth distally blunt, distal tooth minute spur-like, much smaller than proximal toothBoth teeth distally blunt, distal tooth smaller than proximal toothBoth teeth triangular, distal tooth much smaller than proximal toothBoth teeth triangular, distal tooth smaller than proximal toothSubacicular hook present from chaetiger, distribution53 or 58, uniform present in all chaetigers thereafter200, scattered missing in several chaetigers thereafterNot described123, scattered missing in several chaetigers thereafter 1The original description contains two localities in Japan: Misaki in Sagami Province (currently Kanagawa Prefecture) and Ushibuka in Higo Province (currently Kumamoto Prefecture) (Izuka 1912). 2Numbers differ from those in Izuka (1912), because he considered peristomial rings as two segments. 3 Izuka (1912) described denticles between proximal and distal teeth. In the illustration (Plate XIV, fig. 4 in Izuka 1912), these denticles appear to be the distal end of the guards. The presence of these denticles needs to be revised. M, median antenna. L, lateral antennae.
表1 区分新种Eunice dharastii与近缘物种的主要形态特征 Eunice dharastii新种 Eunice aphroditois(Pallas, 1788) Eunice flavopicta Izuka, 1912 Eunice kinbergi Ehlers, 1868 数据来源 本研究描述 Fauchald 1992 Izuka 1912; Fauchald 1992 Fauchald 1992 模式产地 澳大利亚新南威尔士州斯蒂芬斯港尼尔逊湾主海滩 斯里兰卡 日本¹ 南非好望角 口前叶附肢(触角与触须)的不规则关节 存在 不存在 存在 存在 触角折叠后延伸至的位置(M=中触角,L=侧触角) 正模:中触角至第4刚节,侧触角至第5刚节;副模:中、侧触角均至第9刚节 中、侧触角可达围口节后缘 中触角至第2刚节,侧触角至第1刚节² 中触角至第1或第4刚节,侧触角至第1刚节 鳃着生起始刚节 10 6 5 28~29 发达鳃与背刚叶须的长度比例 显著更长 显著更长 显著更长 近等长 前刚叶背侧肉质瘤突 存在 不存在 不存在 不存在 背刚叶须形态 下垂状(参照Fauchald 1992);自膨大基部突然变细 自膨大基部平滑变细 下垂状(参照Fauchald 1992);自膨大基部平滑变细 自稍膨大基部平滑变细 复刚毛齿的指向方向 均指向侧方 未描述 近端齿指向侧方,远端齿指向远端 均指向侧方 复刚毛远端齿与近端齿的相对长度 前部刚毛两齿长度相近,中部和后部刚毛的远端齿显著短于近端齿 未描述 远端齿短于近端齿³,变异未描述 两齿长度相近或远端齿长于近端齿 针下钩的远端形态及齿的指向方向 渐细至小头部,两齿均指向远端 渐细至小头部,两齿均指向远端 头部弯曲,两齿均指向侧方 头部明显,近端齿指向侧方,远端齿指向远端 针下钩近端齿与远端齿的形态及相对大小 近端齿末端钝圆,远端齿为细小棘突状,远小于近端齿 两齿末端钝圆,远端齿小于近端齿 两齿呈三角形,远端齿远小于近端齿 两齿呈三角形,远端齿小于近端齿 针下钩着生起始刚节及分布特征 第53或58刚节开始,后续所有刚节均具针下钩 第200刚节开始,后续多个刚节偶有缺失 未描述 第123刚节开始,后续多个刚节偶有缺失 脚注: ¹ 原始描述中包含2处日本产地:相模国三崎(今神奈川县)及肥后国牛深(今熊本县)(Izuka 1912)。 ² 数值与Izuka(1912)的记载不同,因他将围口节环视为2个体节。 ³ Izuka(1912)描述了近端齿与远端齿间的小齿。在其插图(Izuka 1912图版XIV图4)中,该小齿看似为刚毛鞘的远端末端,该小齿的存在性有待重新验证。 M:中触角;L:侧触角



