Galathella Barnard & Karaman 1987

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 : 28

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.6319071

persistent identifier

https://treatment.plazi.org/id/03AE8B60-AC1D-FFC3-6CC1-FDDEFAD5C624

treatment provided by

Felipe (2021-06-11 20:53:46, last updated 2024-11-29 10:29:20)

scientific name

Galathella Barnard & Karaman 1987
status

 

Galathella Barnard & Karaman 1987 View in CoL

( Fig. 16 View FIGURE 16 )

Galathella Barnard & Karaman 1987: 866 View in CoL .— Barnard & Karaman 1991: 488.—Lowry & Stoddart, 1995: 12.— Lowry & Stoddart 2003: 281 (catalogue).

Type species. Schisturella galatheae Dahl, 1959 View in CoL , original designation.

Included species. Galathella View in CoL includes 5 species: G. bassiana Lowry & Stoddart, 1995 View in CoL ; G. galatheae ( Dahl, 1959) View in CoL ; G. latipes ( Ledoyer, 1986) View in CoL ; G. palana Lowry & Stoddart, 1995 View in CoL ; G. solivagus Kilgallen, 2009 View in CoL .

Diagnostic description. Antenna 1 peduncle article 1 without anterodistal lobe; accessory flagellum with an elongate article 1 (at least twice as long as article 2) partially covering callynophore. Antenna 2 without brush setae. Mandible molar a reduced column with triturating surface. Maxilla 1 outer plate a well developed 7/4 crown. Maxilla 2 inner plate slightly shorter to significantly shorter than outer plate. Gnathopod 1 weakly to strongly subchelate or simple; coxa 1 reduced or large, shorter than coxa 2, tapering; ischium short (length less than 2 × breadth) or long (length more than 2 × breadth); carpus long to very long (greater than 2 × breadth); propodus margins tapering distally. Uropod 2 inner ramus not constricted. Telson moderately to deeply cleft.

Remarks. Galathella is the only uristid with gnathopod 1 coxa slightly shorter than coxa 2 and tapering distally, similar to Ventiella in which coxa 1 is more reduced and tapering. These genera differ mainly in maxilla 2 (inner plate longer than outer plate in Ventiella ) and in the cleftness of the telson (moderately to deeply in Galathella and notched in Ventiella ).

Distribution. South-western Pacific Ocean: Kermadec Trench. Eastern Australia. Western Indian Ocean.

Barnard, J. L. & Karaman, G. S. (1987) Revisions in classification of gammaridean Amphipoda (Crustacea), Part 3. Proceedings of the Biological Society of Washington, 100, 856 - 875.

Barnard, J. L. & Karaman, G. S. (1991) The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Records of the Australian Museum, Supplement, 13, 1 - 866. http: // dx. doi. org / 10.3853 / j. 0812 - 7387.13.1991.367

Dahl, E. (1959) Amphipoda from depths exceeding 6000 meters. Galathea Report, 1, 211 - 241.

Kilgallen, N. M. (2009) New species of lysianassoid Amphipoda (Crustacea) associated with seamounts, marine canyons and cold seeps of New Zealand. Zootaxa, 2298, 1 - 30.

Ledoyer, M. (1986) Crustaces Amphipodes Gammariens. Familles des Haustoriidae a Vitjazianidae. Faune de Madagascar, 59, 599 - 1112.

Lowry, J. K. & Stoddart, H. E. (2003) Crustacea: Malacostraca: Peracarida: Amphipoda, Cumacea, Mysidacea. Vol. 19.2 B. CSIRO Publishing, Melbourne, 531 pp.

Gallery Image

FIGURE 16. Galathella galatheae (Dahl, 1959), holotype, female, 10.0 mm, ZMUC CRU-2082, from the Kermadec Trench, western South Pacific Ocean. EP3 after Dahl (1959). Scale bars: gnathopods, pereopods, 0.2 mm; remainder, 0.1 mm.

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Amphipoda

Family

Uristidae