Table 3 in Sigambra sundarbanensis sp. nov. (Annelida, Pilargidae) from the Indian sector of Sundarbans Estuarine System, with remarks on parapodial glands

Table 3 (continued on next page). Main distinguishing characters of accepted species of Sigambra Müller, 1858.
12345678910111213SpeciesS. vargassi Dean, 1999S. papagayu Bamber in Muir & Bamber, 2008S. bidentata Britayev & Saphronova, 1981S. qingdaoensis Licher & Westheide, 1997S. rugosa Fauchald, 1972S. setosa Fauchald, 1972S. phuketensis Licher & Westheide, 1997S. parva (Day, 1963)S. elegans S. sundar- Britayev & banensis sp. nov. Saphronova, 1981S.pettiboneae Hartmann Schröder, 1979S. hanaokai (Kitamori, 1960)S. bassi (Hartman, 1947)Body size:Length (L), width (W) and no. ofL: 5.2, W: 1 Chaetiger: 60L: 22.81, W: 1.5 Chaetiger: 122–L: 2.3, W: 0.38 Chaetiger: 22L: 14, W: 2.5 Chaetiger: 80L: 14, W: 3 Chaetiger: 60L: 4.5, W: 0.55 Chaetiger: 46 (Holotype)L: 6.75–10, W: L: 5.63, W: 0.28 0.35–0.8 Chaetiger: 64 Chaetiger: 56–75L: 16, W:? Chaetiger:?L:?, W:? Chaetiger:?L: 5–15, W: 0.5–1 L: 24, W: 1.9, Chaetiger? Chaetiger: 146chaetigersDorsal> VentralDorsal> VentralRelative size ofDorsal cirri atdorsal cirri ofdorsal andDorsal> VentralDorsal> VentralDorsal> VentralDorsal> VentralDorsal> Ventralmedian segmentmedian segmentsDorsal> VentralDorsal> VentralDorsal> VentralDorsal> VentralDorsal> VentralDorsal> Ventralventral cirriis 5 times longer3 times longerthan widethan wideVentral cirri (chaetiger 2)AbsentAbsentAbsentAbsentAbsentAbsentAbsentAbsentAbsentAbsentAbsentAbsent–No. of marginal papillae8888––14141413131414Length ofmedian antenna compared to3 times longer1.75 times longerBarely longer2 times longerSubequalSimilar length2 times longer1.5 times longer2.3 times longer2 times longerSlightly longer2 times longer2 times longerlateral antennaeMedian antenna reaching up to chaetiger75–31–1 to 2–3 to 4–4 to 68 to 10 or extending beyond2First appearanceof dorsal hook15–173–53–83–843–663–434–5812–187–107–814–15 (holotype)from chaetigerPresentNotopodial capillariesPresent (1 or 2)AbsentPresent (2)PresentAbsentPresent (2–3)(may be lacking in some anterior and posteriorPresentAbsent––PresentPresentchaetigers)RemarksMedian antenna No notochaete three times longer adjacent to dorsal than lateral hook antennaNeurochaete with bifid tips, notochaete with 2 capillaries––Notochaete in all parapodia–Presence of tooth like proboscidial papillae and their arrangementThe first segment with hook is fixed – at chaetiger 8––Presence of notopodial straight spinesReference Dean 1999Muir & Bamber 2008Licher & Westheide 1997Licher & Westheide 1997Fauchald 1972Fauchald 1972Licher & Westheide 1997Moreira & Present Study Parapar 2002Nishi et al. 2007; Salazar-Vallejo et al. 2019Licher & Westheide 1997Licher & Nishi et al. 2007 Westheide 1997