Bathytoma murdochi

Bathytoma murdochi
Shell of Bathytoma murdochi (specimen at the Auckland War Memorial Museum)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Borsoniidae
Genus: Bathytoma
Species:
B. murdochi
Binomial name
Bathytoma murdochi
Finlay, 1930
Synonyms[1]
  • Bathytoma murdochi murdochi (Finlay, 1930)
  • Bathytoma (Micantapex) murdochi murdochi, Beu & Maxwell 1990
  • Micantapex finlayi Powell, 1940
  • Pleurotoma tuberculata Kirk 1882 (preoccupied, replaced by Pleurotoma (Hemipleurotoma) nodilirata Murdoch & Suter 1906)
  • Pleurotoma (Hemipleurotoma) nodilirata Murdoch & Suter 1906 (also preoccupied; replaced by Bathytoma murdochi Finlay 1930)

Bathytoma murdochi is a recent and fossil species of sea snail, a marine gastropod mollusk in the family Borsoniidae.[1]

Taxonomy

T. W. Kirk first described this shell from the Petane Pliocene (Trans. N.Z. Inst., vol. 14, p. 409; 1882) as Pleurotoma tuberculata; this name being preoccupied by Gray, Murdoch and Suter (idem., vol. 38, p. 284; 1906) substituted Pleurotoma (Hemipleurotoma) nodilirata as the species name. In the use of this combination they were forestalled by E. A. Smith, 1878 (Ann. Mag. Nat. Hist., dec. 4, vol. 19, p. 494) who described a Pleurotoma (Drillia) nodilirata from the Philippine Islands. The New Zealand shell is therefore renamed as above.[2]

Description

The height of the biconic shell varies between 23 mm and 27 mm.

(Original description) The shell is fusiform, with the spire making up about half the total length. It has eight whorls, each angled posteriorly. Along the upper angle of each whorl runs a row of tubercles, and a similar but smaller row of tubercles fills the suture. The shell is sculptured with spiral ribs; on the body whorl there are about eleven ribs, which are crossed by distinct lines of growth. The aperture is of moderate size, and the outer lip is angled posteriorly in line with the whorl profile.[3]

Distribution

This marine species occurs off New Zealand and Tasmania.

References

  1. 1 2 Marshall, B.; Rosenberg, G. (2015). Bathytoma murdochi Finlay, 1930. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=598991 on 2016-02-14
  2. ↑ Finlay, H.J. (1930). "Invalid molluscan names. No. 1". Transactions of the New Zealand Institute. 61: 46. Retrieved 5 July 2026.Public Domain This article incorporates text from this source, which is in the public domain.
  3. ↑ Kirk, T.W. (1882). "Description of new Tertiary fossils". ransactions and. Proceedings of the New Zealand Institute. 14: 409. Retrieved 5 July 2026.Public Domain This article incorporates text from this source, which is in the public domain.
  • Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. Pp 196-219. in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.