PROPEAMUSSIIDAE

Cyclopecten fluctuosus

Dijkstra & Marshall, 2008

Figures

 

(lv)                     Holotype                    (rv)

            

Original name  Cyclopecten fluctuosus Dijkstra & Marshall, 2008
Autoreference   Dijkstra & Marshall, 2008: 14, figs 12A-D, 13.
Reference   Dijkstra, H.H. & B.A. Marshall, 2008. The Recent Pectinoidea of the New Zealand region (Mollusca: Bivalvia: Propeamussiidae, Pectinidae and Spondylidae). - Molluscan Research 28(1): 1-88, 70 figs.
Type data   Holotype (pr: H 6.35 mm) National Institute of Water and Atmospheric Research at Wellington (NIWA). Type locality: Tasman Basin, 41*20.4'S, 166*54.8'E, 1760-1799 m, alive, RV 'Tangaroa', 22.iv.1980 (NIWA P939).
Description

  Shell small up to 6.55 mm high, fragile, subcircular, nearly equivalve of sculture, equilateral, left valve slightly more convex than right valve, auricles similar in size and shape and sculpture continuous with disc, umbonal angle ca. 120 degrees, colourless, strongly transparent.

  Valves sculptured throughout with closely spaced commarginal lamellae, somewhat wider in right valve. Byssal fasciole narrow. Internal riblets lacking.

Distribution

 

Tasman Basin (TL), Bounty Trough, New Zealand

Habitat   Living lower bathyally on soft bottom assemblages.