Psittacodrillia albonodulosa

Psittacodrillia albonodulosa is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae.[1]

Psittacodrillia albonodulosa
Original image of a shell of Psittacodrillia albonodulosa
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Horaiclavidae
Genus: Psittacodrillia
Species:
P. albonodulosa
Binomial name
Psittacodrillia albonodulosa
(Smith E. A., 1904)
Synonyms[1]
  • Crassispira albonodulosa (E. A. Smith, 1904)
  • Drillia albonodulosa Smith E. A., 1904 (basionym)

Description

The length of the shell attains 8.3 mm, its diameter 4 mm.

The small, dark-red shell contains six convex whorls and, contrary to the other species in this genus, the apex is not papilliform but slightly depressed. The shell has 10 axial ribs on the whorls. The body whorl has only 6 or 7 ribs, the last part without ribs. The white marks on the ribs is continued as a white band on the smooth part, but it is superficial and not deeply seated. The shell shows spiral striae over whole whorl, 5–6 on the sulcus, 14-15 (or more) below (visible in worn specimens only between the ribs) and c. 15 stronger and more widely spaced striae on base. The aperture is oblong-ovate. The outer lip has a thin border. The columella is upright and shows a small callus. The wide siphonal canal is shallow[2] The shell shows a vestigial varix and fasciole.

Distribution

This marine species occurs off Jeffrey's Bay - Northeast Cape, South Africa

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References
  1. Psittacodrillia albonodulosa (Smith E. A., 1904). Retrieved through: World Register of Marine Species on 4 April 2010.
  2. Smith, Edgar A. (1904). On a Collection of Marine Shells frol Port Alfred, Cape Colony; Journal of Malacology, xi, p. 27, pi. 2, fig. 3 (described as Drillia albonodulosa)
  • Kilburn, R.N. & Rippey, E. (1982) Sea Shells of Southern Africa. Macmillan South Africa, Johannesburg, xi + 249 pp. page(s): 117
  • Kilburn R.N. (1988), Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 4. Subfamilies Drilliinae, Crassispirinae and Strictispirinae; Ann. Natal Mus. Vol. 29(1) pp. 167–320
  • Steyn, D.G. & Lussi, M. (1998) Marine Shells of South Africa. An Illustrated Collector’s Guide to Beached Shells. Ekogilde Publishers, Hartebeespoort, South Africa, ii + 264 pp. page(s): 152
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