A new species of snailfish of the genus Paraliparis (Liparidae) from the western North Pacific, with a redescription of the poorly known species Paraliparis mandibularis Author Kai, Yoshiaki Maizuru Fisheries Research Station, Field Science Education and Research Center, Kyoto University, Nagahama, Maizuru, Kyoto 625 - 0086, Japan https://orcid.org/0000-0002-0991-5173 mebaru@kais.kyoto-u.ac.jp Author Murasaki, Kenta Institute of Oceanic Research and Development, Tokai University, 3 - 20 - 1 Orido Shimizu, Shizuoka 424 - 8610, Japan Author Misawa, Ryo Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 25 - 259 Same, Hachinohe, Aomori, 031 - 0841, Japan Author Fukui, Atsushi School of Marine Science and Technology, Tokai University, 3 - 20 - 1 Orido, Shimizu, Shizuoka 424 - 8610, Japan Author Morikawa, Eisuke Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 25 - 259 Same, Hachinohe, Aomori, 031 - 0841, Japan Author Narimatsu, Yoji Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 25 - 259 Same, Hachinohe, Aomori, 031 - 0841, Japan text ZooKeys 2020 968 143 159 http://dx.doi.org/10.3897/zookeys.968.56057 journal article http://dx.doi.org/10.3897/zookeys.968.56057 1313-2970-968-143 5A7620751B91472BB5CA6F99C4B6600E EA1B5615859A5AE9BB0E416F06BD2DF5

Table 1. Measurements of Paraliparis flammeus sp. nov. and P. mandibularis (means in parentheses).

	Paraliparis flammeus		Paraliparis mandibularis
	Holotype	Paratypes	Holotype	Non-types
	MSM-20-52	n = 14	BSKU 30513	n = 6
Standard length (mm)	75.8	42.5-80.4	103.6	104.7-128.1
In % of standard length
Head length	21.4	17.2-24.1 (20.8)	19.8	18.0-20.7 (19.8)
Snout length	6.7	5.2-7.0 (6.2)	6.9	5.6-6.9 (6.1)
Orbit length	5.8	4.5-6.2 (5.4)	5.6	4.4-6.0 (5.2)
Interorbital width	7.2	3.6-8.8 (5.8)	8.0	5.9-7.7 (6.5)
Maxilla length	10.8	10.6-12.0 (11.1)	10.5	9.7-11.1 (10.6)
Gill slit length	10.3	6.4-10.9 (8.4)	6.9	7.5-10.5 (9.1)
Body depth	23.0	13.5-21.7 (18.6)	16.1	16.0-24.9 (19.8)
Pectoral-fin length	26.2	18.5-26.7 (22.4)	Damaged	21.6-26.0 (23.3)
Pectoral-fin lower lobe length	19.6	16.7-23.4 (20.6)	Damaged	13.8-15.9 (15.1)
Pectoral-fin notch-ray length	13.3	9.1-15.9 (12.6)	Damaged	9.6-11.8 (10.7)
Predorsal length	22.4	20.3-24.5 (22.5)	18.5	19.7-23.7 (21.2)
Preanal length	35.3	29.9-35.2 (29.9)	33.2	31.8-36.1 (33.8)
Snout to anus length	16.9	13.0-16.7 (14.5)	13.2	12.0-18.8 (14.6)
Caudal-fin length	11.8	10.8-15.1 (12.9)	Damaged	15.5-19.6 (17.8)
In % of head length
Snout length	31.3	24.5-35.5 (29.9)	34.6	27.4-34.2 (30.9)
Orbit length	27.1	21.7-32.3 (26.1)	28.2	23.2-29.0 (26.5)
Interorbital width	33.8	20.6-36.6 (27.8)	40.5	29.8-35.1 (33.0)
Maxilla length	50.5	43.8-63.7 (53.7)	52.8	51.8-56.3 (53.5)
Gill slit length	48.1	30.5-18.3 (40.5)	34.7	37.4-51.9 (46.6)
In % of caudal-fin length
Dorsal-fin connection to caudal fin	37.9	22.3-37.7 (29.6)	Damaged	38.4-50.6 (42.9)
Anal-fin connection to caudal fin	40.1	29.2-44.7 (36.9)	Damaged	19.6-36.4 (29.8)