taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
B4764209FFA1DF3EFC73FB25FAC1AE4A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5239906/files/figure.png	https://doi.org/10.5281/zenodo.5239906	Fig. 2. Living Capnea japonica from the type locality of Misaki, Sagami Bay, Japan (CMNH-ZG 06547), oral view. A, Slightly expanded state; B, contracted state. Scale bars: 5mm.	Fig. 2. Living Capnea japonica from the type locality of Misaki, Sagami Bay, Japan (CMNH-ZG 06547), oral view. A, Slightly expanded state; B, contracted state. Scale bars: 5mm.	2021-06-17	Yanagi, Kensuke;Izumi, Takato		Zenodo	biologists	Yanagi, Kensuke;Izumi, Takato			
B4764209FFA1DF3EFC73FB25FAC1AE4A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5239908/files/figure.png	https://doi.org/10.5281/zenodo.5239908	Fig. 3. Syntypes of Capnea japonica (UUZM 101). A, Two syntypes with the labels of the specimen; B, oral view of two syntypes, the larger specimen (left and center ones) dissected horizontally at the level of pharynx; C, oral view of the smaller specimen; D, enlarged view of crosssectional surface of larger specimen. Abbreviations: d, pairs of directive mesenteries; f, fosse; p, pharynx; s, siphonoglyph. Scale bars: 10mm in B; 5mm in C and D.	Fig. 3. Syntypes of Capnea japonica (UUZM 101). A, Two syntypes with the labels of the specimen; B, oral view of two syntypes, the larger specimen (left and center ones) dissected horizontally at the level of pharynx; C, oral view of the smaller specimen; D, enlarged view of crosssectional surface of larger specimen. Abbreviations: d, pairs of directive mesenteries; f, fosse; p, pharynx; s, siphonoglyph. Scale bars: 10mm in B; 5mm in C and D.	2021-06-17	Yanagi, Kensuke;Izumi, Takato		Zenodo	biologists	Yanagi, Kensuke;Izumi, Takato			
B4764209FFA1DF3EFC73FB25FAC1AE4A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5239910/files/figure.png	https://doi.org/10.5281/zenodo.5239910	Fig. 4. Histological aspects of Capnea japonica (CMNH-ZG 06547). A, Transverse section, the number indicating the order of each pair of mesenteries from one directives, numbers 23 to 29 indicate the pairs of the rudimental small mesenteries; B, enlarged A showing immature small pair of mesenteries (arrow heads); C, longitudinal section of the gastrodermis of the column. Abbreviations: ccm, columnar circular muscle; d, directive mesentery; g, gastrodermis; m, mesoglea; p, pharynx; pbm, parietobasilar muscles; r, retractor muscle. Scale bars: 1mm in A; 500µm in B; 100µm in C.	Fig. 4. Histological aspects of Capnea japonica (CMNH-ZG 06547). A, Transverse section, the number indicating the order of each pair of mesenteries from one directives, numbers 23 to 29 indicate the pairs of the rudimental small mesenteries; B, enlarged A showing immature small pair of mesenteries (arrow heads); C, longitudinal section of the gastrodermis of the column. Abbreviations: ccm, columnar circular muscle; d, directive mesentery; g, gastrodermis; m, mesoglea; p, pharynx; pbm, parietobasilar muscles; r, retractor muscle. Scale bars: 1mm in A; 500µm in B; 100µm in C.	2021-06-17	Yanagi, Kensuke;Izumi, Takato		Zenodo	biologists	Yanagi, Kensuke;Izumi, Takato			
B4764209FFA1DF3EFC73FB25FAC1AE4A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5239912/files/figure.png	https://doi.org/10.5281/zenodo.5239912	Fig. 5. Sphincter muscle of Capnea japonica (CMNH-ZG 06547). A, Longitudinal section through the upper part of the column; B, same as A but under fluorescent light. Abbreviations: c, column; m, mesoglea; sp, sphincter. Scale bars: 200µm.	Fig. 5. Sphincter muscle of Capnea japonica (CMNH-ZG 06547). A, Longitudinal section through the upper part of the column; B, same as A but under fluorescent light. Abbreviations: c, column; m, mesoglea; sp, sphincter. Scale bars: 200µm.	2021-06-17	Yanagi, Kensuke;Izumi, Takato		Zenodo	biologists	Yanagi, Kensuke;Izumi, Takato			
B4764209FFA1DF3EFC73FB25FAC1AE4A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5239914/files/figure.png	https://doi.org/10.5281/zenodo.5239914	Fig. 6. Cnidae from tentacle, pharynx, mesenterial filaments, column, and limbus of Capnea japonica (CMNH-ZG 06547). For letters a–i, refer to Table 1. Scale bar: 20µm.	Fig. 6. Cnidae from tentacle, pharynx, mesenterial filaments, column, and limbus of Capnea japonica (CMNH-ZG 06547). For letters a–i, refer to Table 1. Scale bar: 20µm.	2021-06-17	Yanagi, Kensuke;Izumi, Takato		Zenodo	biologists	Yanagi, Kensuke;Izumi, Takato			
B4764209FFA1DF3EFC73FB25FAC1AE4A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5239916/files/figure.png	https://doi.org/10.5281/zenodo.5239916	Fig. 7. Size distribution of cnidae of Capnea japonica (CMNH-ZG 06547). X and y axes represent the length and width of cnidae in µm, respectively. “n” is the number of capsules measured.	Fig. 7. Size distribution of cnidae of Capnea japonica (CMNH-ZG 06547). X and y axes represent the length and width of cnidae in µm, respectively. “n” is the number of capsules measured.	2021-06-17	Yanagi, Kensuke;Izumi, Takato		Zenodo	biologists	Yanagi, Kensuke;Izumi, Takato			
B4764209FFA1DF3EFC73FB25FAC1AE4A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5239918/files/figure.png	https://doi.org/10.5281/zenodo.5239918	Fig. 8. Concatenated phylogenetic trees based on 12S, 16S, 18S, 28S, and COX III sequences. A, Tree inferred by Maximum likelihood (ML) analysis; B, tree inferred by using Bayesian inference (BI) method. Numbers on nodes represent bootstrap values (in ML tree) or posterior probabilities (in BI tree).	Fig. 8. Concatenated phylogenetic trees based on 12S, 16S, 18S, 28S, and COX III sequences. A, Tree inferred by Maximum likelihood (ML) analysis; B, tree inferred by using Bayesian inference (BI) method. Numbers on nodes represent bootstrap values (in ML tree) or posterior probabilities (in BI tree).	2021-06-17	Yanagi, Kensuke;Izumi, Takato		Zenodo	biologists	Yanagi, Kensuke;Izumi, Takato			
