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Buchema Corea, 1934

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Popis

Shell rather small, 9-15 mm., solid, fusiform-biconic, with a tall tabulated spire and truncated body-whorl, terminated in a short widely open shallowly to moderately deeply notched anterior canal, backed in the type species by a moderate fasciole. Protoconch of 2 to 2,5 whorls, rather narrow but with a smooth blunt tip, the last half whorl developing arcuate protractive axial riblets. Adult sculpture of very strong rounded axial folds, obsolete over the shoulder sulcus, overridden by strong rather narrow spiral cords, which become thickened where they cross the axials. Suture submargined by a moderate cord which is waved by the underlying axials. Aperture rather narrow, with a thin outer lip, interrupted above by a deep narrow U-shaped sinus, constricted above by a heavy parietal entering callus pad; lower outer lip with a distinct stromboid notch. Colour of the type species brownish, the intercostal spaces darker than the ribs.
Source: Powell, 1966
Shell claviform, rather small (7-20 mm), with moderate to high spire and short, somewhat squarely truncate base, with a distinct fasciole. siphonal canal moderately deeply notched; anal sinus fairly deep, U-shaped, somewhat constric¬ted by parietal pad, stromboid notch distinct; lip preceded by a varix; subsutural cord moderate, with distinct shoulder sulcus, rest of whorl sculptured by axial ribs, crossed by strong spiral lirae, sometimes rather nodose at points of crossing; drab or colourless, sometimes zoned with brown. Protoconch narrowly domed, of approximately 2-2,5 whorls, smooth, except for weak axial riblets (and sometimes faint spiral striae) on last half whorl. Operculum oblanceolate, with terminal nucleus. Radula typically crassispirine. Powell (1966: 78) followed Corea (1934) in ranking Buchema as a subgenus of Carinodrillia Dall. 1919, from which it differs in its non-carinate protoconch.
Kilburn, R.N., 1988. Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 4. Subfamilies Drillinae, Crassispirinae and Strictispirinae

Rozšíření

Range — Recent, Puerto Rico Deep, 17-120 fathoms.
Fossil: The Pliocene of Florida.

Zařazené taxony

Počet záznamů: 12

druh Buchema bellula E.A. Smith, 1882

Buchema bellula

druh Buchema dichroma R.N. Kilburn, 1988

Buchema dichroma

druh Buchema granulosa Sowerby, 1834
druh Buchema hadromeres J.C. Melvill, 1927

Buchema hadromeres

druh Buchema interpleura Dall & Simpson, 1901

Buchema interpleura

druh Buchema interstrigata E.A. Smith, 1882
druh Buchema liella Corea, 1934

Buchema liella

druh Buchema melanacme E.A. Smith, 1882

Buchema melanacme

druh Buchema nigra P.J. Fallon, 2010
druh Buchema primula J.C. Melvill, 1923

Buchema primula

druh Buchema shearmani M. Morassi & A. Bonfitto, 2013
druh Buchema tainoa Corea, 1934

Buchema tainoa


Odkazy a literatura


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