Scaphopoda |
Dentaliida |
Anulidentaliidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 1641 - 1641 m (Ref. 1821). Temperate
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Northwest Atlantic: Japan Trench. Subtropical to boreal climates.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 4.0 cm SHL male/unsexed; (Ref. 2071); common length : 2.7 cm SHL male/unsexed; (Ref. 2071)
Shell: very thin, translucent to transparent, slightly curved and slender, expanding gradually. Radula: Rachidian; superior border with three central projections that eroded quickly and absent in the anterior rows; laterals with pronounced head with a prominent primary cusp, one low posterior secondary denticle and one sharp anterior secondary denticle which is followed by a short nodulose ridge; marginals weakly sinusoidal, outer border wider than that adjacent to the laterals. Mantel edges: anterior with short longitudinal slits positioned dorsoventrally and leads posteriorly from the frontal epithelium of the mantel edge and close to form a short tube; posterior mantel edge forms a valve apparatus with a ventral bolster of connective tissue; a ring of large cells with long cilia outside of the valve apparatus; a two to three-fiber ligament runs from between the statocysts and extending posteriorly to attach at the buccal septum; with two pairs of dorsoventral muscles in the abdominal region, a large inner pair and a smaller outer pair.
Depth based from holotype (Ref. 1821); to be replaced with a better reference. Length values from type series (Ref. 2071).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Scaphopoda are gonochoric. Fertilization occurs in the mantle cavity. Life cycle: Eggs hatch into free-swimming lecithotrophic trochophore larvae, succeeded by shelled veligers.
Steiner, G. and A.R. Kabat. 2004. (Ref. 1821)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Tools
More information
Age/SizeGrowthLength-weightLength-lengthMorphologyLarvaeAbundance
Internet sources
Estimates based on models
Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.