Cutting the ribbon: bathyal Nemertea from seeps along the Costa Rica margin, with descriptions of 2 new genera and 9 new species Author Sagorny, Christina 9C89C1B7-897A-426E-8FD4-C747DF004C85 Institute of Evolutionary Biology and Animal Ecology, Rheinische Friedrich-Wilhelms-Universität Bonn, An der Immenburg 1, 53121 Bonn, Germany. csagorny@evolution.uni-bonn.de Author Döhren, Jörn von 08FB1175-F972-4AD9-A94B-DF0B99F6E27D Institute of Evolutionary Biology and Animal Ecology, Rheinische Friedrich-Wilhelms-Universität Bonn, An der Immenburg 1, 53121 Bonn, Germany. jdoehren@evolution.uni-bonn.de Author Rouse, Greg W. F4AAFAE4-85D9-44CA-8290-E0FC614E1983 Scripps Institution of Oceanography, 9500 Gilman Drive, La Jolla, California 92093 - 0202, USA. grouse@ucsd.edu Author Tilic, Ekin 89205DA4-C863-49CA-9C9B-4EFCF53B43B5 Institute of Evolutionary Biology and Animal Ecology, Rheinische Friedrich-Wilhelms-Universität Bonn, An der Immenburg 1, 53121 Bonn, Germany. & Scripps Institution of Oceanography, 9500 Gilman Drive, La Jolla, California 92093 - 0202, USA. etilic@evolution.uni-bonn.de text European Journal of Taxonomy 2022 2022-10-27 845 1 132 174 http://dx.doi.org/10.5852/ejt.2022.845.1959 journal article 176499 10.5852/ejt.2022.845.1959 7a13c253-8569-4fcf-af23-e294f27c5cad 2118-9773 7258852 214BF6A7-233B-47F6-8819-A1284093B0DB

Table 1 (continued on next page). Known species of benthic nemerteans exceeding 1000 m. Sampling depth, locality, number of collected specimens (#), reference and presence of genetic data (Gd) are given. In some cases, the exact number of specimens cannot be determined (s = several).

Species	Depth (m)	Locality	#	Reference	Gd
Palaeonemertea
Carinina grata	2267–2450	NW Atlantic (b/w Bermuda & Halifax)	2	Hubrecht 1887	/
Cephalothrix iwatai	1494–3334	NW Pacific (Sea of Japan)	200	Chernyshev 2013	1
Heteronemertea
Baseodiscus australis	1280	SW Pacific (New Zealand)	1	Hubrecht 1887	/
Baseodiscus abyssorum	1353	NE Atlantic (France)	1	Joubin 1902	/
Baseodiscus giardii	548–1280	SW Pacific (New Zealand)	1	Hubrecht 1887	/
Cerebratulus angusticeps	20–2010	SW Pacific (New Zealand)	2	Hubrecht 1887	/
Cerebratulus fuscus	20–1460	Arctic waters, Mediterranean, NE Atlantic	s	Bürger 1904	19
Cerebratulus macroren	1280–1290	W Pacific (Japan & New Zealand)	2	Hubrecht 1887	/
Micrura bathyalis	2670–3426	NW Pacific (Sea of Japan)	9	Chernyshev 2013	1
Parborlasia corrugata	0–3590	Antarctic waters	s	Gibson 1983	s
Sonnenemertes cantelli	3306–4869	NW Pacific (Sea of Okhotsk & KKT)	6	Chernyshev et al. 2015	6
Hoplonemertea
Monostilifera
Abyssonemertes kajiharai	5510–5514	NW Atlantic (Vema Fracture Zone)	1	Chernyshev & Polyakova 2018b	1
Emplectonema giganteum	160–1560	NW Atlantic (Maine)	>6	Verrill 1892	/
Galathenemertes giribeti	7256	NW Pacific (KKT)	5	Chernyshev & Polyakova 2019	2
Nemertovema hadalis	8336	NW Atlantic (Puerto Rico Trench)	1	Chernyshev & Polyakova 2018b	1
Nemertovema norenburgi	8221–8282	NW Pacific (KKT)	2	Chernyshev & Polyakova 2019	2
Ovicides davidi	2595–2650	SE Pacific (Pagodes vent site)	36	Shields & Segonzac 2007	/
Ovicides jasoni	1891–2719	SW Pacific (North Fiji Basin & Lau Basin)	juv	Shields & Segonzac 2007	/
Ovicides jonesi	2204	SE Pacific (Sebastian’s Steamer vent site)	?	Shields & Segonzac 2007	/
Monostilifera
Proamphiporus crandalli	5495	NW Pacific (KKT)	1	Chernyshev & Polyakova 2019	1
Proamphiporus kaimeiae	262	NW Pacific (Japan)	1	Hookabe et al. 2020b	1
Thermanemertes valens	2280	NE Pacific (Juan de Fuca Ridge)	14	Rogers et al. 1996	/
Polystilifera?
Uniporus alisae	3301	NW Pacific (Sea of Okhotsk)	1	Chernyshev & Polyakova 2018a	1
Uniporus hyalinus	1000–1200	NE Atlantic (Norwegian Sea)	2	Brinkmann 1914 –1915	/