Provanna laevis Waren & Ponder, 1991

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 laevis Waren & Ponder, 1991

New records.

Costa Rica • 25 specimens; Costa Rica Margin, Mound 12; 8.930°N, 84.313°W; 999 m; 22 May 2017; Lisa Levin, Charlotte Seid leg.; ALVIN Dive 4907, from wood; Scripps Benthic Invertebrate Collection (SBIC) M16112. 11 specimens; Costa Rica Margin, Mound 12; 8.930°N, 84.313°W; 1004 m; 25 May 2017; Greg Rouse, Todd Litke leg.; ALVIN Dive 4910, from rock; SBIC M16104 and M16106. 16 specimens; Costa Rica Margin, Mound 12; 8.929°N, 84.315°W; 964 m; 1 June 2017; Greg Rouse, Ben Moran leg.; ALVIN Dive 4917, from mussel shells; SBIC M16176. 89 specimens; Costa Rica Margin, Mound 12; 8.930°N, 84.313°W; 1003 m; 20 October 2018; Lisa Levin, Kyle Metcalfe leg.; ALVIN Dive 4974, from mussel shells; SBIC M16765. 78 specimens; Costa Rica Margin, Mound 12; 8.931°N, 84.313°W; 1004 m; 24 October 2018; Erik Cordes, Melissa Betters leg.; ALVIN Dive 4978, from mussel shells. 104 specimens; Costa Rica Margin, Mound 12; 8.931°N, 84.313°W; 1002-1004 m; 30 October 2018; Erik Cordes, Melissa Betters leg.; ALVIN Dive 4984, from mussel shells. 5 specimens; Costa Rica Margin, Mound 12; 8.930°N, 84.313°W; 1001 m; 31 October 2018; Erik Cordes, Melissa Betters leg.; ALVIN Dive 4985, from mussel shells. 475 specimens; Costa Rica Margin, Mound 12; 8.930°N, 84.312-84.313°W; 1002-1007 m; 2 November 2018; Erik Cordes, Melissa Betters leg.; ALVIN Dive 4987, from tubeworms. 6 specimens; Costa Rica Margin, Jaco Summit; 9.174°N, 84.800°W; 742 m; 6 January 2019; Greg Rouse, Allison Miller leg.; SUBASTIAN Dive 213, from wood; SBIC M17030. 793 specimens; Costa Rica Margin, The Thumb; 9.049°N, 84.354-84.394°W; 1071-1075 m; 10 January 2019; Erik Cordes, Melissa Betters leg.; SUBASTIAN Dive 217, from mussel shells. 22 specimens; Costa Rica Margin, The Thumb; 9.049°N, 84.354-84.394°W; 1071-1075 m; 10 January 2019; Erik Cordes, Melissa Betters leg.; SUBASTIAN Dive 217, from tubeworms.

Remarks.

The range of P. laevis is here expanded to three hydrocarbon seep locations at the CRM: Mound 12, Jaco Summit, and The Thumb. Their known distribution in the Eastern Pacific Ocean ranges from the Juan de Fuca Ridge to the Costa Rica Margin. Their known depth distribution in the Eastern Pacific Ocean is between 700-2000 m (Table 4 ).