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Oliveragemmula congener

Oliveragemmula congener, common name Melvill's turrid, is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids.

Synonyms

  • Gemmula congener cosmoi <small>(Sykes, 1930)</small>: synonym of Oliveragemmula cosmoi <small>(Sykes, 1930)</small>
  • Gemmula congener diomedea <small>Powell, 1964</small>: synonym of Oliveragemmula diomedea <small>(A. W. B. Powell, 1964)</small>
  • Gemmula congener unilineata <small>Powell, 1967</small>: synonym of Cryptogemma unilineata <small>(Powell, 1967)</small> (basionym)
  • Gemmula congener webberae <small>Kilburn, 1975</small>: synonym of Cryptogemma webberae <small>(Kilburn, 1975)</small>

Description

The length of the shell varies between 40&nbsp;mm and 90&nbsp;mm.

(Original description in Latin) The white shell is fusiform and robust. It is faintly reddish-banded below the suture and reddish-dotted between the tubercles around the middle of the whorls. There are 10-12 convex whorls, encircled below the suture by a double band and around the middle by another flattened, tuberculated band. They are adorned with a few thin spiral lirae and conspicuous growth lines. The body whorl, below the band, is encircled by 5-6 lirae and intercalating striae, narrowing inferiorly and produced into a rostrum (beak). The columella is slightly oblique and rather straight. The outer lip is thin and incised at the tuberculated band. The aperture is lirate internally.

Distribution

This marine species occurs in the Indo-West Pacific, in the Bay of Bengal, off the Philippines and off Western Australia; in the East China Sea, northern South China Sea and Nansha Islands; off Japan.

References

  • Schepman, M.M. 1913. Toxoglossa. pp.&nbsp;384–396 in Weber, M. & de Beaufort, L.F. (eds). The Prosobranchia, Pulmonata and Opisthobranchia Tectibranchiata, Tribe Bullomorpha, of the Siboga Expedition. Monograph 49. Siboga Expeditie 32(2)
  • Melvill, J.C. 1917. A revision of the Turridae (Pleurotomidae) occurring in the Persian Gulf, Gulf of Oman and North Arabian Sea as evidenced mostly through the results of dredging carried out by Mr. F.W. Townsend, 1893–1914. Proceedings of the Malacological Society of London 12(4-5): 140-201
  • Kilburn R.N. (1975). Taxonomic notes on South African marine Mollusca (5): including descriptions of new taxa of Rissoidae, Cerithiidae, Tonnidae, Cassididae, Buccinidae, Fasciolariidae, Turbinellidae, Turridae, Architectonicidae, Epitoniidae, Limidae and Thraciidae. Annals of the Natal Museum 22(2):577-622, figs. 1-25.
  • Wilson, B. 1994. Australian marine shells. Prosobranch gastropods. Kallaroo, WA : Odyssey Publishing Vol. 2 370 pp.
  • Liu, J.Y. [Ruiyu] (ed.). (2008). Checklist of marine biota of China seas. China Science Press. 1267 pp
  • Li B. [Baoquan] & Li X. [Xinzheng]. (2008). Report on the turrid genera Gemmula, Lophiotoma and Ptychosyrinx (Gastropoda: Turridae: Turrinae) from the China seas. Zootaxa. 1778: 1-25.
  • Kantor, Y., Bouchet, P., Fedosov, A., Puillandre, N. & Zaharias, P. (2024). Generic revision of the Recent Turridae (Neogastropoda: Conoidea). Journal of Molluscan Studies. eyae032: 1-40.

External links