Spathoderma Scheltema, 1985

Ivanov, Dmitry L. & Scheltema, Amélie H., 2008, NMR solution structures of KAP- 1 PHD finger-bromodomain, Zootaxa 1885, pp. 1-60 : 30

Spathoderma Scheltema, 1985

Scheltema, 1985: 509.

Lonchoderma Salvini-Plawen, 1986 (without diagnosis); 1992: 324 (subgen.)

Type species: Spathoderma clenchi Scheltema, 1985 (original designation).

Diagnosis: Spiny, sclerites spatula-like; blades long relative to base, plane of blade bent outwards from plane of base, planes usually rotated relative to each other so that the longitudinal axis, usually straight, may appear curved at waist, or proximal end of base may appear slanted ( Figs. 20K , 22K ); keel lacking or slight; proximal end of base asymmetrical. Waist distinct, blade narrower than base at waist, edges straight and tapered or slightly convex. Isochromes symmetrical. Oral shield sclerites in 3 rows.

Distribution: North Pacific, eastern and western north and south Atlantic including south of Iceland; Mediterranean; and western Indian Ocean; from continental shelf to abyssal depths, 49–5,320 m ( Schwabl, 1963; Scheltema, 1985; Salvini-Plawen, 1992; Scheltema & Ivanov, 2000; Ivanov & Scheltema, 2001; including unpublished data).

Composition: S. alleni Scheltema & Ivanov, 2000 ; S. bulbosum n. sp.; S. californicum ( Schwabl, 1963) ; S. clenchi Scheltema, 1985 ; S. grossum Scheltema & Ivanov, 2000 ; S. longisquamosum ( Salvini-Plawen, 1992) ; S. quadratum n. sp.; S. subulatum Ivanov & Scheltema, 2001 .

Figures

FIGURE 20. Spathoderma bulbosum n. sp., sclerites from same paratype as Fig. 19B. A. Oral shield. B. Dorsal to oral shield. C. Anterium. D. Ventral anterior trunk. E. Lateral anterior trunk. F. Ventral mid-trunk. G. Dorsal mid-trunk. H. Shank. I, J. Knob, short and long types. K. Lateral view of trunk sclerite, blade bent outward (to right) from base.

FIGURE 22. Spathoderma quadratum n. sp., sclerites from paratype (DGoMB, S36/3). A. Oral shield. B. Dorsal to oral shield. C, D. Anterium. E. Anterior trunk. F. Ventral mid-trunk. G. Dorsal mid-trunk. H. Shank. I. Knob. J. Fringe. K. Lateral view of trunk sclerite, blade bent outwards (to right) from blade.