Parschisturella Andres, 1983

Lowry, J. K. & Kilgallen, N. M., 2014, A generic review of the lysianassoid family Uristidae and descriptions of new taxa from Australian waters (Crustacea, Amphipoda, Uristidae), Zootaxa 3867 (1), pp. 1-92 : 48

publication ID

https://doi.org/ 10.11646/zootaxa.3867.1.1

publication LSID

lsid:zoobank.org:pub:B7C6EC5F-5AA3-43B1-BD3D-D8111E0EC3A7

DOI

https://doi.org/10.5281/zenodo.6319040

persistent identifier

https://treatment.plazi.org/id/03AE8B60-AC29-FFF7-6CC1-FF2AFA28C6DD

treatment provided by

Felipe

scientific name

Parschisturella Andres, 1983
status

 

Parschisturella Andres, 1983 View in CoL View at ENA

( Fig. 29 View FIGURE 29 )

Parschisturella Andres, 1983: 212 View in CoL .— Barnard & Karaman, 1991: 517.

Type species. Parschisturella simplex Andres, 1983 View in CoL , original designation.

Included species. Parschisturella View in CoL includes five species: P. carinata ( Schellenberg, 1926b) View in CoL ; P. martrudan View in CoL sp. nov.; P. medora View in CoL sp. nov.; P. pilot View in CoL sp. nov.; P. simplex Andres, 1983 View in CoL .

Diagnostic description. Antenna 1 peduncle article 1 without anterodistal lobe; accessory flagellum without cap covering callynophore. Antenna 2 with brush setae. Labrum epistome and upper lip separate; upper lip strongly produced and apically acute. Mandible molar a reduced column, proximally setose, distally triturating or setose with distal triturating surface. Maxilla 1 outer plate a well developed 7/4 crown. Maxilla 2 inner plate slightly to significantly shorter than outer plate. Gnathopod 1 simple, parachelate or weakly subchelate; coxa 1 large, about as long as coxa 2, subrectangular with straight anterior margin; ischium short (length less than 2 × breadth); carpus long (length 2 to 4 × breadth); propodus margins tapering distally. Uropod 2 inner ramus constricted (weakly) or not. Telson deeply to moderately cleft.

Remarks. Six uristid genera ( Eclecticus , Galathella , Ichnopus , Nagada , Paralibrotus and Parschisturella , have simple first gnathopods. Parschisturella does not appear to be particularly similar to any of these genera. All have four to five generic level differences from Parschisturella .

In Parschisturella gnathopod 1 varies from simple to weakly subchelate to parachelate and the telson varies from moderatly to deeply cleft. All species have a spine on the posterior margin of the gnathopod 1 dactylus. Parschisturella appears to be most smilar to the Australian endemic genus Des. The main differences between Parschisturella and Des are the accessory flagellum cap (absent or partially developed in Parschisturella , large and fully-developed in Des) and the labium (upper lip apically produced in Parschisturella and not produced in Des).

Until now Parschisturella has been considered an Antarctic endemic, but it is well represented in the temperate Australian fauna by at least three species.

Distribution. Antarctica and Australia.

Key to Parschisturella species

1. Gnathopod 1 parachelate....................................................................... P. carinata View in CoL - Gnathopod 1 weakly subchelate......................................................................... 2 - Gnathopod 1 simple.................................................................................. 3 2. Epimeron 3 posteroventral corner forming a weak spine.............................................. P. medora View in CoL - Epimeron 3 posteroventral corner acutely produced with a tiny notch....................................... P. pilot View in CoL 3. Urosomite 1 evenly rounded. Telson with 2 apical robust setae per lobe................................ P. martrudan View in CoL - Urosomite 1 dorsally straight. Telson with 4–5 apical robust setae per lobe................................ P. simplex View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Amphipoda

Family

Uristidae

Loc

Parschisturella Andres, 1983

Lowry, J. K. & Kilgallen, N. M. 2014
2014
Loc

Parschisturella

Barnard, J. L. & Karaman, G. S. 1991: 517
Andres, H. G. 1983: 212
1983
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF