taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
F8378799B22FFF872C0EFC27FE4EF9FB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14765232/files/figure.png	https://doi.org/10.5281/zenodo.14765232	Figure 1. Prostheceraeus fragum sp. n., photographs of living animal (A, B, D) and fixed specimen (C). (A) NSMT-Pl 9505 (holotype; left) and NSMT-Pl 9507 (paratype; right), dorsal view. (B) NSMT-Pl 9507 (paratype), ventral view. (C) NSMT-Pl 9505 (holotype), cleared in xylene, ventral view. (D) NSMT-Pl 9505 (holotype), magnification of anterior body. Abbreviations: ce: cerebral eyespots; fg: female gonopore; mg: male gonopore; ph: pharynx; pte: pseudotentacle; su: sucker; te: tentacular eyespots; ut: uterus. Scale bars: A, B = 5 mm; C, D = 1 mm.	Figure 1. Prostheceraeus fragum sp. n., photographs of living animal (A, B, D) and fixed specimen (C). (A) NSMT-Pl 9505 (holotype; left) and NSMT-Pl 9507 (paratype; right), dorsal view. (B) NSMT-Pl 9507 (paratype), ventral view. (C) NSMT-Pl 9505 (holotype), cleared in xylene, ventral view. (D) NSMT-Pl 9505 (holotype), magnification of anterior body. Abbreviations: ce: cerebral eyespots; fg: female gonopore; mg: male gonopore; ph: pharynx; pte: pseudotentacle; su: sucker; te: tentacular eyespots; ut: uterus. Scale bars: A, B = 5 mm; C, D = 1 mm.	2025-01-29	Tsuyuki, Aoi;Kohtsuka, Hisanori;Okuno, Junji		Zenodo	biologists	Tsuyuki, Aoi;Kohtsuka, Hisanori;Okuno, Junji			
F8378799B22FFF872C0EFC27FE4EF9FB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14765234/files/figure.png	https://doi.org/10.5281/zenodo.14765234	Figure 2. Prostheceraeus fragum sp. n., holotype (NSMT-Pl 9505), reconstructed schematic diagram (A) and photomicrographs of sagittal sections (B–D) (anterior to the left). (A) Male and female copulatory apparatus. (B) Male copulatory apparatus. (C) Uterine vesicle and uterus. (D) Female copulatory apparatus. Abbreviations: cg: cement glands; cp: cement pouch; e: egg; ed: ejaculatory duct; fg: female gonopore; it: intestine; ma: male atrium; mg: male gonopore; po: penis pouch; pp: penis papilla; ps: penis sheath; pv: prostatic vesicle; sd: sperm duct; spv: spermiducal vesicle; st: stylet; sv: seminal vesicle; ut: uterus; uv: uterine vesicle; vg: vagina. Scale bars: A = 300 µm: B–D = 100 µm.	Figure 2. Prostheceraeus fragum sp. n., holotype (NSMT-Pl 9505), reconstructed schematic diagram (A) and photomicrographs of sagittal sections (B–D) (anterior to the left). (A) Male and female copulatory apparatus. (B) Male copulatory apparatus. (C) Uterine vesicle and uterus. (D) Female copulatory apparatus. Abbreviations: cg: cement glands; cp: cement pouch; e: egg; ed: ejaculatory duct; fg: female gonopore; it: intestine; ma: male atrium; mg: male gonopore; po: penis pouch; pp: penis papilla; ps: penis sheath; pv: prostatic vesicle; sd: sperm duct; spv: spermiducal vesicle; st: stylet; sv: seminal vesicle; ut: uterus; uv: uterine vesicle; vg: vagina. Scale bars: A = 300 µm: B–D = 100 µm.	2025-01-29	Tsuyuki, Aoi;Kohtsuka, Hisanori;Okuno, Junji		Zenodo	biologists	Tsuyuki, Aoi;Kohtsuka, Hisanori;Okuno, Junji			
F8378799B225FF9D2C6FFED8FCB0F98E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14765237/files/figure.png	https://doi.org/10.5281/zenodo.14765237	Figure 3. Phrikoceros sagamianus comb. n., photographs of living animals (A–C) and fixed specimen cleared in xylene (D). (A) ICHUM 8977, whole animal, dorsal view. (B) ICHUM 8977, whole animal, ventral view. (C) ICHUM 8978, magnification of anterior body, ventral view, arrowheads indicate pseudotentacular eyespots on dorsal (white) and ventral (black) surface. (D) ICHUM 8979, magnification of anterior body, showing cerebral eyespots. Abbreviations: ce: cerebral eyespots; fg: female gonopore; mg: male gonopore; ph: pharynx; pte: pseudotentacle; su: sucker. Scale bars: A, B = 5 mm; C, D = 1 mm.	Figure 3. Phrikoceros sagamianus comb. n., photographs of living animals (A–C) and fixed specimen cleared in xylene (D). (A) ICHUM 8977, whole animal, dorsal view. (B) ICHUM 8977, whole animal, ventral view. (C) ICHUM 8978, magnification of anterior body, ventral view, arrowheads indicate pseudotentacular eyespots on dorsal (white) and ventral (black) surface. (D) ICHUM 8979, magnification of anterior body, showing cerebral eyespots. Abbreviations: ce: cerebral eyespots; fg: female gonopore; mg: male gonopore; ph: pharynx; pte: pseudotentacle; su: sucker. Scale bars: A, B = 5 mm; C, D = 1 mm.	2025-01-29	Tsuyuki, Aoi;Kohtsuka, Hisanori;Okuno, Junji		Zenodo	biologists	Tsuyuki, Aoi;Kohtsuka, Hisanori;Okuno, Junji			
F8378799B225FF9D2C6FFED8FCB0F98E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14765241/files/figure.png	https://doi.org/10.5281/zenodo.14765241	Figure 4. Phrikoceros sagamianus comb. n., reconstructed schematic diagram (A) and photomicrographs of sagittal sections (B–F) (anterior to the left). (A) ICHUM 8977, male and female copulatory apparatus. (B) ICHUM 8978, penial stylet. (C) ICHUM 8978, penis papilla and seminal vesicle. (D) ICHUM 8978, prostatic vesicle and ejaculatory duct. (E) ICHUM 8978, female copulatory apparatus. (F) ICHUM 8978, sucker. Abbreviations: cg: cement glands; cp: cement pouch; e: egg; ed: ejaculatory duct; fa: female atrium; fg: female gonopore; it: intestine; ma: male atrium; mg: male gonopore; po: penis pouch; pp: penis papilla; pv: prostatic vesicle; spv: spermiducal vesicles; st: stylet; sv: seminal vesicle; su: sucker; ut: uterus; vg: vagina. Scale bars: 300 µm.	Figure 4. Phrikoceros sagamianus comb. n., reconstructed schematic diagram (A) and photomicrographs of sagittal sections (B–F) (anterior to the left). (A) ICHUM 8977, male and female copulatory apparatus. (B) ICHUM 8978, penial stylet. (C) ICHUM 8978, penis papilla and seminal vesicle. (D) ICHUM 8978, prostatic vesicle and ejaculatory duct. (E) ICHUM 8978, female copulatory apparatus. (F) ICHUM 8978, sucker. Abbreviations: cg: cement glands; cp: cement pouch; e: egg; ed: ejaculatory duct; fa: female atrium; fg: female gonopore; it: intestine; ma: male atrium; mg: male gonopore; po: penis pouch; pp: penis papilla; pv: prostatic vesicle; spv: spermiducal vesicles; st: stylet; sv: seminal vesicle; su: sucker; ut: uterus; vg: vagina. Scale bars: 300 µm.	2025-01-29	Tsuyuki, Aoi;Kohtsuka, Hisanori;Okuno, Junji		Zenodo	biologists	Tsuyuki, Aoi;Kohtsuka, Hisanori;Okuno, Junji			
