| 词条 | Haustrum haustorium |
| 释义 |
| name = Haustrum haustorium | image = H._haustorium_(2).JPG | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_superfamilia = clade Caenogastropoda clade Hypsogastropoda clade Neogastropoda | superfamilia = Muricoidea | familia = Muricidae | subfamilia = Haustrinae | genus = Haustrum | species = H. haustorium | binomial = Haustrum haustorium | binomial_authority = (Gmelin, 1791) }} Haustrum haustorium, common name: the brown or dark rock shell, is a large species of predatory sea snail, a marine gastropod mollusc in the family Muricidae, the murex snails or rock snails. TaxonomyHaustrum haustorium used to be the only species in the genus Haustrum. However, Beu (2004) reclassified a number of New Zealand's whelks, considering species in the genus Lepsiella to be synonymous with the genus Haustrum. DistributionThis species occurs in New Zealand. Shell descriptionA reliable characteristic for distinguishing Haustum haustorium from its congeners is the angle by which the aperture lip inserts on the shell: In Haustrum haustorium the angle is near-perpendicular, whereas in other species the angle is more acute (~45 degrees). Tan (2003) provides the most recent review. EcologyHabitatThis rock snail's typical habitat is the mid and lower eulittoral zone of New Zealand's semi-exposed rocky intertidal shores. It is less common on algal-dominated sheltered shores. References
3 : Muricidae|Gastropods of New Zealand|Gastropods described in 1791 |
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