Species ID
OC-SP-0002601
Discovered
Phylum
Arthropoda
Species ID
OC-SP-0002601
Provisional Species Name
Heteroserolis sp_MoV7423
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
The species differs from most others in the genus by its narrow body (1.7 times as long as wide in the female), the difference between the lateral extent of coxal dorsal plates 5 and 6, the sublateral bosses on pleonites 2 and 3, sublateral tubercles on the pleotelson, and the relatively short uropodal exopod. Interim diagnosis. Based on female only. Female 1.7 times as long as wide. Body dorsally not setose. Head with pair of diagonal ridges between anterior margins of eyes; pereonites 1–4, pleonites 1–3 each bearing long low median tubercle; pereonites 1–6 smooth, pleonities 2, 3 each with pair of low dorsolateral bosses. Pereonite 1 anterolateral margins convex. Coxal dorsal plates 1–6 marginally contiguous, plate 6 well stepped in from plate 5, laterally with concave margin (width at plate 6 0.8 times that at plate 5); coxal dorsal plates 2–4 delimited from pereonite tergites by non-articulating suture; plate 6 just overlapping pleonal epimeron 2. Pleonites 2, 3 epimera margins rounded-truncate in dorsal view. Pleotelson lateral margins almost parallel over anterior half, tapering from halfway; 0.85 times as long as wide; without median ridge, with pair of sublateral acute posteriorly-directed tubercles at about half of pleotelson length; apex rounded, tunnel-like. Pleonite 1 sternite midventral keel overlapping and slotting into half of keel on pleonite 2; pleonite 2 keel just overlapping pleonite 3 keel; pleonite 3 with grooved keel as long as that on pleonite 2. Uropod attaching at about one-third length of pleotelson lateral margin; endopod reaching almost to pleotelson apex, tapering to rounded apex; exopod two-thirds as long as endopod, apex truncate.
Received All Minimal Data for Discovery
01/04/2026
Description of Material
The species is known from three females, maximum length, 7.0 mm.
Ecology
Like all members of this family, Serolidae, the species is benthic living on the surface of the sediment.
Distribution
Australia, Coral Sea. IMCRA Northeast Province; 300 m depth (known only from type locality).
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