Tridentella Richardson 1905
Creators: name: Bruce, Niel L.
name: Svavarsson, Jörundur
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Isopoda
Tridentellidae
Tridentella

description: Tridentella Richardson, 1905 —annotated species list
Ornate species
T. acheronae Bruce, 1988; New Zealand; 424–1006 m.
T. cornuta Kussakin, 1979; northwestern Pacific; 907– 935 m. Male with three head spines, pereonite 1 with three anterior median spines; pleotelson rounded, with low radiating ridges; female with pleotelson as for male, but no head spines.
T. glutacantha Delaney & Brusca, 1985; California; it is possible that two species are included under this namethe male pleotelson is not marginally serrate whereas the female allotype has prominent marginal serrations, this being a character usually present in both sexes (Bruce 2002), the female antennula and antenna is longer than that of the holotype and the uropodal endopod shape appears to differ between the holotype and allotype; 128– 360 m.
T. katlae sp. nov. New Caledonia; pleotelson lateral margins serrate; 150–200 m.
T. namibia Brandt & Poore, 2001; off Orange River, Namibia; 175–351 m; acute short spines all over, pleotelson rounded, spines forming weakly radiating rows, eyes large, head with some low nodules.
T. ornamenta (Menzies & George, 1972); Peru– Chile trench; 907–935 m.
T. ornata (Richardson, 1911); Atlantic coast of USA, shallow; T. williamsi Delaney, 1990 is a junior synonym (Kensley and Heard, 1997); large eyes; pleotelson lateral margins strongly serrate; shallow to 168 m.
T. quinicornis Delaney & Brusca, 1985; California; 53 m; weakly ornamented, head with four dorsal nodules (not 5, the fifth perhaps refers to the rostrum).
T. rosemariae Bruce, 2002; New Zealand; 550–1840 m.
T. sculpturata Kussakin, 1955, northwestern Pacific; small (6–12 mm); male with posterior margins ornamented, pleotelson with 5 longitudinal ridges; 70– 96 m.
T. vitae Bruce, 1984; Fiji; Lateral margins of pleotelson with overlapping ‘scales’; small size (6.9–9.5 mm); 360 m.
T. brandtae Bruce, 2008; Banda Sea, Indonesia; very finely nodular, appearing plain; 425 m.
Smooth-bodied species with pleotelson carinae
T. tangeroae Bruce, 1988; New Zealand; 90–94 m.
T. saxicola (Hale, 1925); New South Wales, southern Great Barrier Reef; the only species of the family known from coral reefs (Bruce 1984); 10–134 m.
No ornamentation
T. benguela Brandt & Poore, 2001; off Orange River, Namibia; not ornamented, figured with weakly radiating ridges; possibly juvenile of T. namibia; 285 m.
T. japonica Thielemann, 1910; Japan; c. 600 m.
T. laevicephalax Menzies, 1962; shallow, not ornamented (Carvacho 1977); Chile.
T. magna sp. nov. New Caledonia; large (36 mm), head with three small tubercles, otherwise smooth; 760 m.
T. memikat Bruce, 2008; Kei Is., Indonesia; 620–809 m.
T. palmata sp. nov. New Caledonia, 260–390 m.
T. recava Bowman, 1986; off New York; smooth, characterised by a deeply excavate pleotelson apex; 180–304 m.
T. tanimbar Bruce, 2008; Banda Sea, Indonesia; 410 m.
T. virginiana (Richardson, 1900); Virginia, USA; type species; smooth bodied, in need of redescription as there are no good figures for this species; head with four small tubercles; 53 m.
description: Published as part of Bruce, Niel L. & Svavarsson, Jörundur, 2018, Three new species of Tridentella Richardson, 1905 (Isopoda: Cymothoida: Tridentellidae) from New Caledonia, pp. 101-118 in Zootaxa 4399 (1) on pages 102-103, DOI: 10.11646/zootaxa.4399.1.6, http://zenodo.org/record/1206494