The length of the shell attains 9 mm, its diameter 3.9 mm.
(Original description) The shell has a fusiform shape. The spire is produced, longer than the body whorl. The whorls are rounded, strongly spirally striated, and obliquely ribbed in the centre. The suture is very finely obliquely striated and with a spiral rib. The aperture is oval. The siphonal canal is short.[3](described as Pleurotoma wanganuiensis)
(Description by Henry Suter) The small, fairly solid, whitish shell has a fusiform shape. The suture strongly margined. The whorls are angulated by a row of large nodules. The spire is high. The anal sinus is moderately deep. The sculpture consists of a row of large oval nodules on the middle of the whorls, about 14 on a whorl. Those on the last two whorls are somewhat stretched out towards the suture below and incised in the middle by a spiral linear groove. A very strong spiral cord margins the suture below, and a fine thread above. The latter is continued as a rather strong cord on the body whorl, and is succeeded below by a similar cord. The base of the body whorl is adorned with fine spiral threads, close together upon the beak. The whole sculpture is crossed by very fine, strongly flexuous, and oblique growth lines. The spire is high, conic, somewhat less than twice the height of the aperture. The protoconch consists of 2 whorls, which are microscopically spirally striate. The nucleus is oblique, rounded, the second volution shows a sharp median keel. The shell contains 7 whorls, regularly increasing, roundly angled at the middle by the nodules, concave above and below it. The body whorl is slightly convex, contracted at the base. The suture is linear and bimarginate. The aperture is oblique, oval, angled above, produced below into an oblique short and open siphonal canal, slightly notched at its base. The outer lip is sharp, somewhat strengthened on the outside, moderately convex, contracted below, with a fairly deep and rounded sinus in the depression above the row of nodules. The columella is slightly arcuate, excavated on meeting the parietal wall. The inner lip is thin and narrow, drawn out to a point towards the margin of the siphonal canal. The operculum is unknown.[4]
^F.W. Hutton, Catalogue of the Tertiary Mollusca and Echinodermata of New Zealand in the Collection of the Colonial Museum; New Zealand Geological Survey, 1873
^Suter H. (1913-1915), Manual of New Zealand Mollusca; Wellington, N. Z. :J. Mackay, govt. printer,1913-1915 (described as Drillia chordata )
Powell, Arthur William Baden. The New Zealand Recent and Fossil Mollusca of the Family Turridae: With General Notes on Turrid Nomenclature and Systematics. No. 2. Unity Press limited, printers, 1942.
External linksedit
Spencer H.G., Willan R.C., Marshall B.A. & Murray T.J. (2011) Checklist of the Recent Mollusca Recorded from the New Zealand Exclusive Economic Zone
Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1–1295.
May 08, 2024
aoteadrillia, wanganuiensis, species, snail, marine, gastropod, mollusk, family, horaiclavidae, image, shell, scientific, classification, domain, eukaryota, kingdom, animalia, phylum, mollusca, class, gastropoda, subclass, caenogastropoda, order, neogastropoda. Aoteadrillia wanganuiensis is a species of sea snail a marine gastropod mollusk in the family Horaiclavidae 1 Aoteadrillia wanganuiensis Image of a shell of Aoteadrillia wanganuiensis Scientific classification Domain Eukaryota Kingdom Animalia Phylum Mollusca Class Gastropoda Subclass Caenogastropoda Order Neogastropoda Superfamily Conoidea Family Horaiclavidae Genus Aoteadrillia Species A wanganuiensis Binomial name Aoteadrillia wanganuiensis Hutton 1873 Synonyms 1 Aoteadrillia chordata Suter 1908 Aoteadrillia thomsoni Powell 1942 Aoteadrillia trifida Powell 1942 Drillia chordata Suter 1908 Drillia wanganuiensis Hutton 1873 Pleurotoma wanganuiensis Hutton 1873 original description It was formerly included within the family Turridae 2 Contents 1 Description 2 Distribution 3 References 4 External linksDescription editThe length of the shell attains 9 mm its diameter 3 9 mm Original description The shell has a fusiform shape The spire is produced longer than the body whorl The whorls are rounded strongly spirally striated and obliquely ribbed in the centre The suture is very finely obliquely striated and with a spiral rib The aperture is oval The siphonal canal is short 3 described as Pleurotoma wanganuiensis Description by Henry Suter The small fairly solid whitish shell has a fusiform shape The suture strongly margined The whorls are angulated by a row of large nodules The spire is high The anal sinus is moderately deep The sculpture consists of a row of large oval nodules on the middle of the whorls about 14 on a whorl Those on the last two whorls are somewhat stretched out towards the suture below and incised in the middle by a spiral linear groove A very strong spiral cord margins the suture below and a fine thread above The latter is continued as a rather strong cord on the body whorl and is succeeded below by a similar cord The base of the body whorl is adorned with fine spiral threads close together upon the beak The whole sculpture is crossed by very fine strongly flexuous and oblique growth lines The spire is high conic somewhat less than twice the height of the aperture The protoconch consists of 2 whorls which are microscopically spirally striate The nucleus is oblique rounded the second volution shows a sharp median keel The shell contains 7 whorls regularly increasing roundly angled at the middle by the nodules concave above and below it The body whorl is slightly convex contracted at the base The suture is linear and bimarginate The aperture is oblique oval angled above produced below into an oblique short and open siphonal canal slightly notched at its base The outer lip is sharp somewhat strengthened on the outside moderately convex contracted below with a fairly deep and rounded sinus in the depression above the row of nodules The columella is slightly arcuate excavated on meeting the parietal wall The inner lip is thin and narrow drawn out to a point towards the margin of the siphonal canal The operculum is unknown 4 Distribution editThis marine species is endemic to New Zealand and occurs off Ninety Mile Beach North Island Fossils have been found in Pliocene strata in New Zealand References edit a b Rosenberg G 2012 Aoteadrillia wanganuiensis Accessed through World Register of Marine Species at http www marinespecies org aphia php p taxdetails amp id 599039 on 2012 06 29 Aoteadrillia chordata Suter 1908 Retrieved through World Register of Marine Species on 4 April 2010 F W Hutton Catalogue of the Tertiary Mollusca and Echinodermata of New Zealand in the Collection of the Colonial Museum New Zealand Geological Survey 1873 Suter H 1913 1915 Manual of New Zealand Mollusca Wellington N Z J Mackay govt printer 1913 1915 described as Drillia chordata Powell Arthur William Baden The New Zealand Recent and Fossil Mollusca of the Family Turridae With General Notes on Turrid Nomenclature and Systematics No 2 Unity Press limited printers 1942 External links editSpencer H G Willan R C Marshall B A amp Murray T J 2011 Checklist of the Recent Mollusca Recorded from the New Zealand Exclusive Economic Zone Tucker J K 2004 Catalog of recent and fossil turrids Mollusca Gastropoda Zootaxa 682 1 1295 Retrieved from https en wikipedia org w index php title Aoteadrillia wanganuiensis amp oldid 1009743751, wikipedia, wiki, book, books, library,
