Heteroserolis Brandt 1991
Description
Heteroserolis Brandt, 1991
Heteroserolis Nordenstam, 1933: 50 (nomen nudum, type species not designated). Heteroserolis Brandt, 1991: 147.– Brandt 1992: 230; Wägele 1994: 52.
Type species. Serolis australiensis Beddard, 1884; by subsequent designation (Brandt 1991).
Species included. H. australiensis (Beddard, 1884), type species, South Australia, 2–124 m; H. carinata (Lockington, 1877), California 13–55 m; H. elongata (Beddard, 1884), New South Wales, Australia, 5–329 m; H. levidorsata (Harrison and Poore, 1984), Victoria, Australia, 13–14 m; H. longicaudata (Beddard, 1884), Bass Strait, Australia, 36–99 m; H. mgrayi (Menzies & Frankenberg, 1966), Caribbean to Georgia, USA, 5–95 m; H. pallida (Beddard, 1884), Bass Strait, Australia, 55–104 m; H. pellucida sp. n., New Caledonia, 557–792 m; H. tropica (Glynn, 1976), Pacific Panama, 5–40 m; H. tuberculata (Grube, 1875), Bass Strait, Australia, 5– 91 m.
Remarks. The principal and diagnostic character states for Heteroserolis are the unique pleonal sternal plates 1 and 2 or 1–3, each with a strong posteriorly directed spine; long uropods that are inserted at mid-length on the pleotelson lateral margin, relatively broad pleonites that do not extend along the pleotelson lateral margins; and the narrow lacinia mobilis on the left mandible. A further character state, apparently common to all species of the genus is pleopod 4 exopod being comparatively elongate, approximately to 2.3 times as long as greatest width (compared to, for example, 1.8–1.9 for Myopiarolis gen. n.). Heteroserolis belongs within Wägele’s (1994) ‘Group B’ characterised by having a stalked appendix masculina. A further characteristic of the ‘Group B’ genera that also includes Serolina and Sedorolis gen. n. is the quadrate and elongate pleopods 1–3 peduncles.
The new species described is here placed in Heteroserolis on the basis of the pleonal sternal plates having a strong spine, and agrees with most other characters for the genus. It does differ in having a wide lacinia mobilis on the left mandible, distally acute pleonites, weakly concave lateral margins of the head (compared to strongly convex in most species of the genus), and the robust setae of pereopod 1 propodus differ substantially from that illustrated for the type species (Brandt 1999).
The genus has an unusual and disjunct distribution, with six shallow-water species from Australia, a slope species from New Caledonia, two East Pacific species (Panama and California) and one North Atlantic species.
The most recent descriptive works on the genus are Harrison and Poore (1984, as Serolis), Müller (1993) and Brandt (1999); Brandt (1992) rediagnosed the genus.
Distribution. Species are known from shallow water, at depths between 18 and 140 m [with the exception of two records of H. elongata from the Bass Strait at 164– 273 and 73–329 m (Harrison and Poore 1984)]; the new species described here extends the known depth range for the genus to 792 metres.
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.3897/zookeys.18.96 (DOI)
- Journal article: http://zenodo.org/record/576495 (URL)
- Journal article: http://publication.plazi.org/id/FFA4FFC79E0DFF88BE2BFF969D206D3A (URL)
- Journal article: http://zoobank.org/87B9757A-986D-4CCC-8276-146A617FC905 (URL)
Biodiversity
- Family
- Serolidae
- Genus
- Heteroserolis
- Kingdom
- Animalia
- Order
- Isopoda
- Phylum
- Arthropoda
- Scientific name authorship
- Brandt
- Taxon rank
- genus
- Taxonomic concept label
- Heteroserolis Brandt, 1991 sec. Bruce, 2009
References
- Brandt A (1991) Zur Besiedlungsgeschichte des antarktischen Schelfes am Beispiel der Isopoda (Crustacea, Malacostraca). Berichte zur Polarforschung 98: i-iv + 240.
- Nordenstam A (1933) Marine Isopoda of the families Serolidae, Idotheidae, Pseudidotheidae, Arcturidae, Parasellidae and Stenetriidae mainly from the South Atlantic. In: Bock S (Ed) Further Zoological Results of the Swedish Antarctic Expedition 1901 - 1903. Norstedt & Soner, Stockholm, 284.
- Brandt A (1992) Comparative morphology of Frontoserolis Brandt, 1991, Heteroserolis Brandt, 1991, and Thysanoserolis Brandt, 1991 (Crustacea, Isopoda, Serolidae). Zoologischer Anzeiger 229: 227 - 235.
- Wagele J-W (1994) Notes on Antarctic and South American Serolidae (Crustacea, Isopoda) with remarks on the phylogenetic biogeography and a description of new genera. Zoologische Jahrbucher der Systematik 121: 3 - 69.
- Beddard FE (1884) Preliminary notice of the Isopoda collected during the voyage of H. M. S. Challenger. - Part 1. Serolis. Proceedings of the Zoological Society of London, London, 1884 (23): 330 - 341.
- Lockington WN (1877) Remarks on the Crustacea of the Pacific Coast, with description of some new species. Proceedings of the California Academy of Sciences, 9 (for 1876): 28 - 36.
- Harrison K, Poore GCB (1984) Serolis (Crustacea, Isopoda, Serolidae) from Australia, with a new species from Victoria. Memoirs of the Museum of Victoria 45: 13 - 31.
- Glynn PW (1976) A new shallow-water serolid (Isopoda: Flabellifera) from the Pacific coast of Panama. Journal of Natural History 10: 7 - 16.
- Grube EA (1875) Beitrag zur Kenntniss der Gattung Serolis. Archiv fur Naturgeschichte, 41: 208 - 234, pls v, vi.
- Brandt A (1999) Redescription of Heteroserolis mgrayi (Menzies & Frankenberg, 1966), the northernmost species of Serolidae from Florida. Senkenbergiana Maritima 79: 195 - 201.
- Muller H-G (1993) On the occurrence of the isopod Heteroserolis mgrayi Menzies and Frankenberg, 1966. (Sphaeromatidea) in the Santa Marta area, Caribbean Sea of Colombia, with notes on its variation. Zoologischer Anzeiger 230 (1 - 2): 35 - 44.