Species ID
OC-SP-0002605
Discovered
Phylum
Arthropoda
Species ID
OC-SP-0002605
Provisional Species Name
Heteroserolis sp_MoV7430
Lowest Valid Taxon Name in WoRMS
Heteroserolis
Lowest Known Rank
Genus
Status
Discovered
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Embargo
No
Kingdom
Animalia
Phylum
Arthropoda
Class
Malacostraca
Order
Isopoda
Family
Serolidae
Genus
Heteroserolis
Date Identified
12/11/2025
Taxonomic Remarks
Heteroserolis MoV7430 resembles H. australiensis but differs in having fewer dorsal tubercles, more prominent median teeth, shorter coxal dorsal plates 6 and lacking the transverse ridge on the pleotelson. Interim diagnosis. Based on female and male. Female 1.4 times as long as wide; male 1.5 times as long as wide. Body dorsally not setose. Head with 1 prominent posterior tubercle; pereonites 1–4, each with low median tubercle, pleonites 1–3 with larger median tooth (larger in females); pereonites 1–6, pleonities 1–3 with transverse rows of tubercles; pereon, pleon sculpture similar in both sexes. Pereonite 1 strongly tapering anteriorly. Coxal dorsal plates 1–6 marginally contiguous; coxal dorsal plates 2–4 delimited from pereonite tergites by non-articulating suture in female only; plate 6 just overlapping pleonal epimeron 2. Male coxal ventral plates 2–4 meeting mesially, without mesial marginal ridges; coxal ventral plates 5, 6 serially fused, bearing bifid lobe and pair of lobes bearing gonopores. Pleonites 2, 3 epimera margins squarish in dorsal view, tuberculate. Pleotelson parallel-sided over anterior one-third, triangular beyond; 1 times as long as wide; with median ridge over most of length, with few submedian and sublateral small tubercles; apex concave. Pleonite 1 sternite with prominent grooved keel reaching middle of smaller keel on pleonite 2; pleonite 2 keel overlapping pleonite 3 keel; pleonite 3 with grooved keel shorter than that on pleonite 2. Uropod attaching at about one-third length of pleotelson lateral margin; endopod extending to lateral corner of pleotelson apex; exopod half as long as endopod, as wide distally as endopod, with crenellate truncate distal margin.
Received All Minimal Data for Discovery
01/04/2026
Description of Material
The species is known from more tha 30 individuals, the largest male 6.3 mm long and the only ovigerous female, 9.8 mm long..
Ecology
Like all members of this family, Serolidae, the species is benthic living on the surface of the sediment.
Distribution
Australia, Vic., Tas. Southeast Shelf Transition, Bass Strait Shelf Province; 51–127 m depth.
Specimens
Additional Material
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NMV J77218
Family
Serolidae
Additional Material
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NMV J7144
Family
Serolidae
Additional Material
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NMV J4139
Family
Serolidae
Additional Material
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NMV J4525
Family
Serolidae
Additional Material
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NMV J4140
Family
Serolidae
Additional Material
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NMV J1504
Family
Serolidae
Additional Material
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NMV J4142
Family
Serolidae
Additional Material
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NMV J6776
Family
Serolidae
Additional Material
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NMV J2981
Family
Serolidae
Additional Material
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NMV J2980
Family
Serolidae
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