Provanna ios Waren & Bouchet, 1986

Betters, Melissa J. & Cordes, Erik E., 2024, New records of Provanna (Gastropoda, Provannidae) from the Costa Rica Margin and an identification key for the genus, ZooKeys 1189, pp. 1-32 : 1

Provanna ios Waren & Bouchet, 1986

New records.

Costa Rica • 42 specimens; Costa Rica Margin, Jaco Scar; 9.118°N, 84.839°W; 1757 m; 20 March 2017; Elena Perez, Geoff Cook leg.; ALVIN Dive 4874, from tubeworms; SBIC M12301. 3 specimens; Costa Rica Margin, Jaco Scar; 9.115°N, 84.836°W; 1834 m; 27 March 2017; Victoria Orphan, Kat Dawson leg.; ALVIN Dive 4912, from mussels; SBIC M16110 and M16127. 1 specimen; Costa Rica Margin, Jaco Scar; 9.116°N, 84.840°W; 1898 m; 28 March 2017; Greg Rouse, Jorge Cortes leg.; ALVIN Dive 4913, from tubeworms; SBIC M16144. 10 specimens; Costa Rica Margin, Jaco Scar; 9.117°N, 84.840°W; 1802 m; 29 March 2017; Chris Roman, Alanna Durkin leg.; ALVIN Dive 4914, from tubeworms; SBIC M16153, M16164, and M16166. 7 specimens; Costa Rica Margin, Jaco Scar; 9.117°N, 84.840°W; 1806 m; 17 October 2018; Erik Cordes, Rebecca Rutstein leg.; ALVIN Dive 4971, from rocks; SBIC M16730 and M16754. 1 specimen; Costa Rica Margin, Jaco Scar; 9.118°N, 84.840°W; 1803 m; 19 October 2018; Victoria Orphan, Natalya Gallo leg.; ALVIN Dive 4973, from mussels; SBIC M16724. 1 specimen; Costa Rica Margin, Jaco Scar; 9.118°N, 84.840°W; 1803 m; 19 October 2018; Victoria Orphan, Natalya Gallo leg.; ALVIN Dive 4973, from rock; SBIC M16741. 38 specimens; Costa Rica Margin, Jaco Scar; 9.118°N, 84.840°W; 1803 m; 23 October 2018; Erik Cordes, Joanna Klein leg.; ALVIN Dive 4977, from mussels; SBIC M16807. 37 specimens; Costa Rica Margin, Jaco Scar; 9.118°N, 84.841°W; 1780 m; 4 November 2018; Erik Cordes, Melissa Betters leg.; ALVIN Dive 4989, from tubeworms. 40 specimens; Costa Rica Margin, Jaco Scar; 9.117°N, 84.840°W; 1802-1812 m; 7 January 2019; Erik Cordes, Melissa Betters leg.; SUBASTIAN Dive 214, from mussels.

Remarks.

Detailed in full below, the specimens of P. ios presented here were previously referred to as P. goniata ( Betters et al. 2023). The range of P. ios (inclusive of P. goniata ), is here expanded to one seep locality at the CRM (Jaco Scar). Their range now includes the sites 17S, 13N, and 21N at the East Pacific Rise, the Guaymas Basin, the Galapagos Rift Zone, and the Costa Rica Margin between 2000-2616 m depth (Table 4 ).