taxonID	type	description	language	source
2010812F477BFF9455950275FB8E764D.taxon	materials_examined	Material examined. Holotype: off Hatsushima, Sagami Bay, female, 39 ° 0.95 ′ N, 139 ° 13.32 ′ E, 853 m, Hyper- Dolphin Dive HPD # 0928 during Natsushima NT 08 – 25 cruise, 17 Dec 2008, NSMT-Pol H- 593, JAMSTEC No. 0 79102. Paratypes: off Hatsushima, Sagami Bay during four dives, three males and two females, the same catch as the holotype, NSMT-Pol P- 594, NSMT-Pol P- 595, JAMSTEC No. 0 79069, 0 79073, respectively, and JAMSTEC No. 0 79098, 0 79100, 079109; two males and a female, 35 ° 0.00 ′ N, 139 ° 13.50 ′ E, 1170 m, Dolphin 3 K Dive 3 K # 0190 during Natsushima NT 94 – 04 cruise, 22 Sep 1994, NSMT-Pol P- 596, JAMSTEC No. 79842; three males and a female, 35 ° 0.77 ′ N, 139 ° 13.65 ′ E, 937 m, Shinkai 2000 Dive 2 K # 1203 during Natsushima NT 00 – 08 cruise, 10 Jul 2000, JAMSTEC No. 26480 − 26483; five females, 35 ° 0.76 ′ N, 139 ° 13.49 ′ E, 850 m, Shinkai 2000 Dive 2 K # 1203 during Natsushima NT 00 – 08 cruise, 10 Jul 2000, NSMT-Pol P- 597, JAMSTEC No 026501 − 026507. Non-type specimens: a male, off Hatsushima, Sagami Bay, 35 ° 00.00 ′ N, 139 ° 13.50 ′ E, 1160 m, Natsushima NT 86 – 02 cruise Shinkai 2000 Dive 2 K # 222, 27 May 1986, JAMSTEC No. 80467; a female, the Daini Tenryu Knoll, the Nankai Trough, 34 ° 04.61 ′ N, 137 ° 47.27 ′ E, 606 m, Hyper-Dolphin Dive HPD # 1655 during Natsushima NT 14 − 07 cruise, 25 Apr 2014, JAMSTEC No. 1140043315.	en	Kobayashi, Genki, Miura, Tomoyuki, Kojima, Shigeaki (2015): Lamellibrachia sagami sp. nov., a new vestimentiferan tubeworm (Annelida: Siboglinidae) from Sagami Bay and several sites in the northwestern Pacific Ocean. Zootaxa 4018 (1): 97-108, DOI: 10.11646/zootaxa.4018.1.5
2010812F477BFF9455950275FB8E764D.taxon	description	Description. Tube length 277.0 – 661.5 mm (mean = 545.7 mm, n = 4); outer width of top funnel opening 9.5 – 11.2 mm (n = 4); width of basal end 2.8 – 7.8 mm (mean = 4.5 mm, n = 4). All tubes incomplete, lacking considerable parts of basal regions. External characters of tube variable along its length (Fig. 3). Anterior part straight or slightly curved, but not coiled, with many short collars. Inter-collar distance generally small but varying among specimens. Posterior part sinuous, curled, smooth, without collars. Obturaculum length 5.8 – 22.5 mm (mean = 17.0 mm, n = 18); width 4.4 – 10.8 mm (mean = 8.1 mm, n = 18), with bare anterior face, lacking any secreted structure (Figs. 4 A, B). Lateral surface of obturaculum surrounded by branchial plumes. Three to six pairs of outer sheath lamellae (mean = 4.4, n = 17) present. Branchial lamellae with ciliated pinnules enclosed by sheath lamellae, number of pairs 19 – 26 (mean = 23.2, n = 17). Ratio of number of branchial lamellae pairs to obturaculum width (BL / OW) varying from 2.0 − 5.5 (mean = 3.0, n = 17). Vestimentum length 32.0 – 84.5 mm (mean = 58.0 mm, n = 18); width 3.5 – 7.3 mm (mean = 5.0 mm, n = 18). Anterior edge of vestimentum forming centrally split collar-like fold extending outwardly (Fig. 4 A). Dorsal paired genital ciliated grooves running along most length of vestimentum and flanked by conspicuous narrow epidermal folds in males; without epidermal folds in females. Ventral surface of vestimentum covered by numerous cuticular plaques, with narrow central ciliated field (Figs 4 C, 5 A). Posterior ends of vestimental folds separated centrally and rounded distally with tongue-like extensions. All specimens lacking considerable posterior trunk parts. Trunk (Fig. 4 D) filled with fragile tissue; surface covered entirely by cuticular plaques (Fig. 5 B) except midventral and middorsal seam-like lines. Opisthosome not observed. Vestimental plaques from 17 specimens ranging in diameter from 59 – 101 µm (mean = 77.4 µm; SD = 8.3; n = 170). Trunk plaques from 17 specimens ranging in diameter 67 − 130 µm (mean = 94.0 µm; SD = 11.7; n = 170). Type-locality. Off Hatsushima in Sagami Bay, 853 m deep.	en	Kobayashi, Genki, Miura, Tomoyuki, Kojima, Shigeaki (2015): Lamellibrachia sagami sp. nov., a new vestimentiferan tubeworm (Annelida: Siboglinidae) from Sagami Bay and several sites in the northwestern Pacific Ocean. Zootaxa 4018 (1): 97-108, DOI: 10.11646/zootaxa.4018.1.5
2010812F477BFF9455950275FB8E764D.taxon	etymology	Etymology. The specific epithet sagami, as noun in apposition, refers to the province name of the Edo period for Kanagawa, the coastal area of Sagami Bay, the type locality.	en	Kobayashi, Genki, Miura, Tomoyuki, Kojima, Shigeaki (2015): Lamellibrachia sagami sp. nov., a new vestimentiferan tubeworm (Annelida: Siboglinidae) from Sagami Bay and several sites in the northwestern Pacific Ocean. Zootaxa 4018 (1): 97-108, DOI: 10.11646/zootaxa.4018.1.5
2010812F477BFF9455950275FB8E764D.taxon	materials_examined	Comparison with specimens from non-type localities. The COI sequence and the morphology of a specimen collected from the Daini Tenryu Knoll (JAMSTEC No. 1140043315) was examined. Its COI sequence (626 bp) was identical to the sequence of 22 specimens (Haplotypes A and D) from the type locality of the new species (Kojima et al. 2001). Judging from the diameter of vestimental and trunk plaques and the number of branchial lamellae and sheath lamellae, it was also thought to be the new species (Table 1).	en	Kobayashi, Genki, Miura, Tomoyuki, Kojima, Shigeaki (2015): Lamellibrachia sagami sp. nov., a new vestimentiferan tubeworm (Annelida: Siboglinidae) from Sagami Bay and several sites in the northwestern Pacific Ocean. Zootaxa 4018 (1): 97-108, DOI: 10.11646/zootaxa.4018.1.5
2010812F477BFF9455950275FB8E764D.taxon	distribution	Distribution. Based on the COI sequence (Kojima et al. 2001; Miura & Fujikura 2008), the species is known from cold seep areas off Hatsushima and on the Okinoyama Bank, Sagami Bay, the Kanesu-no-se Bank, the Ryuyo Canyon, the Omaezaki Spur and the Tenryu Knoll, the Nankai Trough, and the Kuroshima Knoll, the Ryukyu Trench between 270 – 1300 m (Fig. 1). It is also known from hydrothermal vent fields on the Iheya Ridge and the North Iheya Knoll, the Okinawa Trough, and the Sumisu Caldera, the Izu-Bonin arc between 900 – 1500 m depth (Kojima et al. 2001; Miura & Fujikura 2008).	en	Kobayashi, Genki, Miura, Tomoyuki, Kojima, Shigeaki (2015): Lamellibrachia sagami sp. nov., a new vestimentiferan tubeworm (Annelida: Siboglinidae) from Sagami Bay and several sites in the northwestern Pacific Ocean. Zootaxa 4018 (1): 97-108, DOI: 10.11646/zootaxa.4018.1.5
2010812F477BFF9455950275FB8E764D.taxon	discussion	Remarks. All species of the genus Lamellibrachia are distinguishable by the sequence data for COI (Southward et al. 2011) with the exception of L. victori for which sequence data are not available. In this study, we compare morphologically the new species with other congeneric species. Lamellibrachia sagami sp. nov. differs morphologically from other known congeneric species in the diameter of cuticular plaques, the number of branchial lamellae and sheath lamellae (Table 1). There was no significant correlation between mean of the vestimental plaques diameters and the body size (the length and width of obturaculum and vestimentum), and between the trunk plaques diameters and the body size in each specimen of L. sagami sp. nov. (Spearman rank correlation, 17 type specimens and two non-type specimens, P> 0.05). Also the number of branchial lamellae and sheath lamellae were not correlated with the body size (Spearman rank correlation, 18 type specimens and two non-type specimens, P> 0.05). These suggest that in adults, the diameter of plaques, and the number of branchial lamellae and sheath lamellae are independent of the growth and we, therefore used them for morphological comparison in the genus. specimen n OL OW BL SL VP TP mm mm plaque diameter plaque diameter n (µm) n (µm) Lamellibrachia sagami sp. nov. 6 2.7 – 3.9 17 – 25 Lamellibrachia juni 8 6.6 – 12.9 5.2 – 8.3 22 – 35 2 – 3 87 – 99 * 7 80 – 98 * 7 Lamellibrachia anaximandri 26 5.5 – 17 1.8 – 6 8 – 19 3 – 9 55 – 70 * 6 60 – 95 * 6 …… continued on the next page BL / OW References range mean Lamellibrachia sagami sp. nov.: obturacular length, OW: obturacular width, BL: number of branchial lamellae, SL: number of sheath lamellae, / TP: vestimental / trunk plaques. Blanks: no data.: specimen n = 16; * 2: specimen n = 1; * 3: specimen n = 5; * 4: specimen n = 53; * 5: specimen n = 57; * 6: specimen n not mentioned in the paper; * 7: specimen n = 4, referred to the plaque width in the text; * 8: calculated in this study. At the continental margins in the Pacific, L. sagami sp. nov., L. barhami and L. satsuma differ one another in the diameter of vestimental plaques (Table 1); 59 – 101 µm in L. sagami sp. nov., 60 – 150 µm in L. barhami (Southward et al. 2011) and 35 – 63 µm in L. satsuma (Miura et al. 1997), and in that of the trunk ones; 67 – 130 µm, 115 – 160 µm and 51 – 82 µm, respectively. In the South Pacific, L. sagami sp. nov., L. columna and L. juni are distinguishable by the number of sheath lamellae (Table 1); 8 – 16 pairs in L. columna and two or three pairs in L. juni (Southward 1991) while three to six pairs in L. sagami sp. nov.. Although some specimens of L. juni and L. sagami sp. nov. have three pairs of sheath lamellae (Miura & Kojima 2006), the new species has a smaller number of branchial lamellae.	en	Kobayashi, Genki, Miura, Tomoyuki, Kojima, Shigeaki (2015): Lamellibrachia sagami sp. nov., a new vestimentiferan tubeworm (Annelida: Siboglinidae) from Sagami Bay and several sites in the northwestern Pacific Ocean. Zootaxa 4018 (1): 97-108, DOI: 10.11646/zootaxa.4018.1.5
