Pristigloma minima (Seguenza, 1877)

Gofas, Serge, Luque, Ángel A., Oliver, Joan Daniel, Templado, José & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), European Journal of Taxonomy 785 (1), pp. 1-114 : 78

Pristigloma minima (Seguenza, 1877)

Fig. 31J‒K

Yoldia minima Seguenza, 1877a: 96 .

Yoldia minima – Seguenza 1877b: 1178, pl. 5 figs 27, 27a–c.

Pristigloma minima (Seguenza, 1877) ‒ Hoffman & Freiwald 2017: 69.

Material examined

GALICIA BANK • 1 sh; 42°40′ N, 11°36′ W; 675‒685 m; 19 Oct. 1987; SEAMOUNT 1 DW111 ; MNHN • 1 v; 43°00.12′ N, 11°57.67′ W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN • 2 v; 42°41.94′ N, 11°40.58′ W; 744 m; 31 Jul. 2011; BANGAL 0711 V4; MNCN .

Remarks

This minute species, originally described from the Pleistocene of Sicily (see Di Geronimo & La Perna 1997), has been reported from the Canaries ( Ortega & Gofas 2019) and from several North Atlantic seamounts including GB ( Hoffman & Freiwald 2017). Pseudoglomus pompholyx (Dall, 1890) from the Western Atlantic is superficially very similar, but larger (4 mm) and differs in that the ligament is set in a pit dorsally to the hinge line which remains unaffected (see Ockelmann & Warén 1998 for a good figure), whereas the present species has a resilifer interrupting the hinge. The generic placement could only be ascertained with live-taken specimens.

Figures

Fig. 31. Protobranchia 1. A–B. Nucula tumidula Malm, 1861, BANGAL 0711, V5, 1631 m, 5.5 and 5.4 mm.C–D. Nucula atacellana Schenck, 1939, BANGAL 0711, V10, 1720 m, 3.5 mm.E–F. Ennucula corbuloides (Seguenza, 1877), BANGAL 0711, V2, 1706 m, 3.2 mm. G–H. Tindaria sericea (Jeffreys, 1876), BANGAL 0711, V2, 4.7 mm.I. Tindaria sericea, BANGAL 0711, V5, 4.5 mm. J–K. Pristigloma minima (Seguenza, 1877), SEAMOUNT 1, DW111, 675–685 m, 1.7 mm. Scale bars = 1 mm.