taxonID	type	description	language	source
8E96ED0E0F03522EA8980079E9DF1A6E.taxon	diagnosis	Diagnosis (revised from Sinniger et al. 2010; Swain and Swain 2014, 2015; Kise et al. 2017; additions in bold). Macrocnemic zoantharians with cteniform endodermal muscle or endo-meso transitional sphincter muscle. Encrustations of the column to the outer mesoglea. No mesogleal canals or encircling sinus. Tentacles at least 26 in number. Substrate consists of antipatharians, external surfaces of parchment-like tubes of polychaetes, or calcium carbonate (coral reef).	en	Kise, Hiroki, Obuchi, Masami, Reimer, James Davis (2021): A new Antipathozoanthus species (Cnidaria, Hexacorallia, Zoantharia) from the northwest Pacific Ocean. ZooKeys 1040: 49-64, DOI: http://dx.doi.org/10.3897/zookeys.1040.62309, URL: http://dx.doi.org/10.3897/zookeys.1040.62309
AD1D7441F7A25799A04496BA84C9D908.taxon	materials_examined	Material examined. Holotype. NSMT-Co 1742, collected from Iwa Beach, Sagami Bay, Kanagawa, Japan (35 ° 09 ' 36 " N, 139 ° 08 ' 36 " E) at a depth of 14 m by M. Obuchi, 26 July 2019, divided in two pieces, one portion fixed in 99.5 % EtOH and the other in 5 - 10 % saltwater formalin. Paratype. NSMT-Co 1743, collected from Kotogahama, Sagami Bay, Kanagawa, Japan (35 ° 08 ' 48 " N, 139 ° 09 ' 05 " E) at a depth of 14 m by M. Obuchi, 6 June 2020, divided in two pieces, one portion fixed in 99.5 % EtOH and the other in 70 % EtOH.	en	Kise, Hiroki, Obuchi, Masami, Reimer, James Davis (2021): A new Antipathozoanthus species (Cnidaria, Hexacorallia, Zoantharia) from the northwest Pacific Ocean. ZooKeys 1040: 49-64, DOI: http://dx.doi.org/10.3897/zookeys.1040.62309, URL: http://dx.doi.org/10.3897/zookeys.1040.62309
AD1D7441F7A25799A04496BA84C9D908.taxon	materials_examined	Material examined for comparison. Antipathozoanthus obscurus NSMT-Co 1602 (holotype), collected from Cape Bise, Motobu, Okinawa-jima Island, Japan, by J. D. Reimer, 14 August 2014. Antipathozoanthus remengesaui NSMT-Co 1603 (holotype), collected from Blue Hole, Palau, by J. D. Reimer, 15 September 2014. Antipathozoanthus cavernus NSMT-Co 1604 (holotype), collected from Sakurajima, Kagoshima, Japan, by J. D. Reimer, 20 September 2015. Antipathozoanthus hickmani CMNH-ZG- 05883 (paratype), collected from Roca Onan, Pinzon Island, Galapagos, Ecuador, by A. Chiriboga, 14 March 2007.	en	Kise, Hiroki, Obuchi, Masami, Reimer, James Davis (2021): A new Antipathozoanthus species (Cnidaria, Hexacorallia, Zoantharia) from the northwest Pacific Ocean. ZooKeys 1040: 49-64, DOI: http://dx.doi.org/10.3897/zookeys.1040.62309, URL: http://dx.doi.org/10.3897/zookeys.1040.62309
AD1D7441F7A25799A04496BA84C9D908.taxon	description	Description. External morphology. Colonial zoantharian, with cylindrical polyps connected by well-developed dark red colored coenenchyme (Fig. 1 a). External branched tube of dead polychaete mostly covered by coenenchyme. Scapus of column dark red in situ, dark brown in preserved specimens. Capitulum of column orange in situ, dark violet in preserved specimens. Column and coenenchyme heavily encrusted with visible sand and silica particles in ectodermal tissue to outer mesoglea (Fig. 1 c, d). Preserved, contracted polyps 2.0 - 6.0 mm in height, 1.0 - 3.0 mm in diameter. In situ, opened polyps approximately <8.0 mm in height, <10 mm in diameter. Oral disk 5.0 - 8.0 mm in diameter, orange to light orange in coloration. Number of oral furrows the same as the number of tentacles, and cream white circular protrusion in central oral disk bears slit-like mouth aligned with directives. Tentacles arranged in two rows (15 - 17 inner endocoelic tentacles and 15 - 17 outer exocoelic tentacles), as long as the expanded oral disk diameter. Number of tentacles 30 - 34, transparent in coloration. 15 - 17 marginal teeth present under inner endocoelic tentacles (Fig. 1 b). Tips of tentacles usually cream in coloration. Capitular ridges indiscernible. Internal morphology. Azooxanthellete. Mesentery number 30 - 34, complete 15 - 17, incomplete 15 - 17. Mesenteries in macrocnemic arrangement (Fig. 2 c). Mesoglea thickness 0.01 - 0.10 mm, and thicker than ectoderm. Developed siphonoglyph distinct and U-shaped. Mesenterial filaments present (Fig. 2 a). Endodermal marginal muscle, short comb-like mesogleal pleats supporting the entire length of the marginal muscle (cteniform endodermal marginal muscle: Fig. 2 b). Basal canals of mesenteries absent (Fig. 2 d). Additionally, possible gametes observed in several longitudinal sections. Cnidae. Basitrichs and microbasic b - mastigophores, microbasic p - mastigophores, holotrichs, and spirocysts (Fig. 3, Table 2).	en	Kise, Hiroki, Obuchi, Masami, Reimer, James Davis (2021): A new Antipathozoanthus species (Cnidaria, Hexacorallia, Zoantharia) from the northwest Pacific Ocean. ZooKeys 1040: 49-64, DOI: http://dx.doi.org/10.3897/zookeys.1040.62309, URL: http://dx.doi.org/10.3897/zookeys.1040.62309
AD1D7441F7A25799A04496BA84C9D908.taxon	etymology	Etymology. Antipathozoanthus tubus sp. nov. is named from the Latin tuba, as this species is found on polychaete tubes. The Japanese name is ' Iwa-tsuno-sunaginchaku'.	en	Kise, Hiroki, Obuchi, Masami, Reimer, James Davis (2021): A new Antipathozoanthus species (Cnidaria, Hexacorallia, Zoantharia) from the northwest Pacific Ocean. ZooKeys 1040: 49-64, DOI: http://dx.doi.org/10.3897/zookeys.1040.62309, URL: http://dx.doi.org/10.3897/zookeys.1040.62309
