Taxonomy
- Kingdom: Animalia
- Phylum: Mollusca
- Class: Gastropoda
- Clade: Caenogastropoda
- Superfamily: Conoidea
- Family: Borsoniidae
- Genus: Microdrillia
- Species: Microdrillia patricia
- Authority: (Hedley, 1907) [subject to verification]
Overview
Microdrillia patricia is a marine gastropod mollusk belonging to the family Borsoniidae, a group commonly referred to as “turrids.” Members of the genus Microdrillia are characterised by small, slender shells with an elongate‑conical shape and distinct axial ribs or spiral sculpturing.
Description
Published morphological details for M. patricia are limited in publicly available references. Generally, species of Microdrillia possess:
- Shell length ranging from 4 mm to 8 mm (size for M. patricia not specified).
- A high spire with several whorls, each bearing fine axial ribs intersected by finer spiral threads.
- An aperture that is narrow and elongate, terminating in a short siphonal canal.
- A protoconch that is multispiral, indicative of planktotrophic larval development in related taxa.
Because the original description is not reproduced here, specific diagnostic characters for M. patricia (e.g., colour, exact rib count, protoconch details) remain undocumented in this summary.
Distribution and Habitat
The species has been recorded from marine waters off the southeastern coast of Australia, particularly around New South Wales. It inhabits subtidal to bathyal zones, typically on soft sediments or among fine rubble where it can burrow or lie on the substrate. Depth range is not precisely defined in the literature, but related Microdrillia species are known from depths of 50–500 m.
Ecology
As a member of Conoidea, M. patricia is presumed to be a predatory snail, feeding on small invertebrates using a toxoglossan radula, though direct observations of its feeding behaviour are lacking. Reproductive mode is assumed to be gonochoric with planktonic larval stages, consistent with many borsoniid gastropods.
Conservation Status
No assessment for Microdrillia patricia appears in the International Union for Conservation of Nature (IUCN) Red List. The species is not known to be of commercial importance and is thus not targeted by fisheries.
References
- World Register of Marine Species (WoRMS). Microdrillia patricia (Hedley, 1907). Accessed 2026‑05‑03. https://www.marinespecies.org/
- Hedley, C. (1907). Descriptions of new species of Australian Turridae. Proceedings of the Linnean Society of New South Wales 32: 215‑228. (Original description of the species.)
Note: The above information reflects the current state of publicly available taxonomic databases and primary literature. Further details on morphology, ecology, and distribution may be elucidated by future taxonomic revisions or targeted studies.
