Onisimus Boeck, 1871

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 : 45

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.6646943

persistent identifier

https://treatment.plazi.org/id/03AE8B60-AC2A-FFF4-6CC1-FD88FAA7C5C2

treatment provided by

Felipe

scientific name

Onisimus Boeck, 1871
status

 

Onisimus Boeck, 1871 View in CoL View at ENA

( Fig. 27 View FIGURE 27 )

Onisimus Boeck, 1871: 111 View in CoL .— Stebbing 1906: 25.—Schellenberg 1927: 659.— Stephensen 1929: 53.— Gurjanova 1951: 161.—J.L. Barnard 1969: 352.— Barnard & Karaman 1991: 506.— Lowry & Stoddart, 1993: 168.—Vader, Johnsen & Berge, 2005: 2.

Onesimus Boeck, 1876: 161 View in CoL (invalid emendationof Onisimus Boeck, 1871 View in CoL ).—G.O. Sars 1891: 104.

Pseudalibrotus Della Valle, 1893: 798 View in CoL .— Stebbing 1906.—33.—Schellenberg 1927: 671.— Stephensen 1929: 55 (type species: Anonyx litoralis Boeck, 1871 View in CoL , monotypy).

Alibrotus Sars, 1891: 101 .

Paronesimus Stebbing, 1894: 14 .— Stebbing 1906: 43.— Gurjanova 1951: 196.— Barnard 1969: 357.— Barnard & Karaman 1991: 516 (type species: Paronesimus barentsi Stebbing, 1894 , monotypy).

Boeckosimus J.L. Barnard, 1969: 330 .— Barnard & Karaman 1991: 470 (type species: Anonyx edwardsii Krøyer, 1846 View in CoL , original designation).

Type species. Anonyx litoralis Krøyer, 1845 View in CoL , selected by Boeck, 1876.

Included species. Onisimus View in CoL includes 26 species: O. abyssi Oldevig, 1959 View in CoL ; O. affinis Hansen, 1887 ; O. barentsi ( Stebbing, 1894) ; O. birulai ( Gurjanova, 1929b) View in CoL ; O. botkini Birula,1897 View in CoL ; O. brevicaudatus Hansen, 1887 View in CoL ; O. caspius (G.O. Sars, 1896) View in CoL ; O. caricus Hansen, 1887 View in CoL ; O. derjugini ( Gurjanova, 1929a) View in CoL ; O. dubius Schellenberg, 1935 b View in CoL ; O. edwardsii Krøyer, 1846 View in CoL ; O. glacialis (G.O. Sars, 1900) View in CoL ; O. krassini Gurjanova, 1951 View in CoL ); O. leucopis G.O. Sars, 1879 View in CoL ; O. litoralis ( Krøyer, 1845) View in CoL ; O. nanseni (G.O. Sars, 1900) View in CoL ; O. normani G.O. Sars, 1891 View in CoL ; O. platyceras (G.O. Sars, 1896) View in CoL ; O. plautus Krøyer, 1845 View in CoL ; O. punctatus ( Bate, 1862) View in CoL ; O. sextonae Chevreux, 1926 View in CoL ; O. sibiricus Brüggen, 1909 View in CoL ; O. simus Gurjanova, 1962 View in CoL ; O. turgidus G.O. Sars, 1879 View in CoL ; O. uschakovi ( Gurjanova, 1933) View in CoL ; O. zenkevitchi Mednikov, 1960 View in CoL .

Nomina nuda. Onisimus abyssicola ( Stuxberg, 1880) ; O. crassini ( Gorbunov, 1946) ; O. vorax ( Stuxberg, 1880) ; O. zebra ( Stuxberg, 1880) .

Diagnostic description. Antenna 1 peduncle article 1 without anterodistal lobe; accessory flagellum forming cap covering callynophore. Antenna 2 without brush setae. Mandible molar a column with fully triturating surface. Maxilla 1 outer plate a well developed 7/4 crown. Maxilla 2 inner plate significantly shorter than outer plate. Gnathopod 1 subchelate; coxa 1 large, about as long as coxa 2, subrectangular with concave anterior margin; ischium short (length less than 2 × breadth); carpus short (length 1 to 2 × breadth); propodus margins slightly tapering distally. Uropod 2 inner ramus with or without constriction. Telson entire to moderately cleft.

Remarks. Based on the morphology of gnathopod 1 Onisimus and Anonyx are very similar. Onisimus retains the triturating molar characteristic of tryphosine amphipods while Anonyx has a derived setose tongue.

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Amphipoda

Family

Uristidae

Loc

Onisimus Boeck, 1871

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

Boeckosimus J.L. Barnard, 1969: 330

Barnard, J. L. & Karaman, G. S. 1991: 470
Barnard, J. L. 1969: 330
1969
Loc

Paronesimus

Barnard, J. L. & Karaman, G. S. 1991: 516
Barnard, J. L. 1969: 357
Gurjanova, E. F. 1951: 196
Stebbing, T. R. R. 1906: 43
Stebbing, T. R. R. 1894: 14
1894
Loc

Pseudalibrotus

Stephensen, K. 1929: 55
Della Valle, A. 1893: 798
1893
Loc

Alibrotus

Sars, G. O. 1891: 101
1891
Loc

Onesimus

Sars, G. O. 1891: 104
Boeck, A. 1876: 161
1876
Loc

Onisimus

Lowry, J. K. & Stoddart, H. E. 1993: 168
Barnard, J. L. & Karaman, G. S. 1991: 506
Barnard, J. L. 1969: 352
Gurjanova, E. F. 1951: 161
Stephensen, K. 1929: 53
Stebbing, T. R. R. 1906: 25
Boeck, A. 1871: 111
1871
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