Anamixis vanga Thomas, 1997

Dugger, Abigail R. & White, Kristine N., 2025, Caribbean Amphipoda (Crustacea) of Panama. Part V: parvorder Amphilochidira, ZooKeys 1259, pp. 57-102 : 57-102

Anamixis vanga Thomas, 1997

Figs 11 , 23 C, D

Anamixis vanga Thomas, 1997: 70–73, figs 17, 18; LeCroy 2007: 507, fig. 448; White 2011: 25–26, fig. 2.

Material examined.

Panama • 1–4 mm • 1 leucomorph ♂, 1 leucomorph ♀, 1 leucomorph juvenile; Bocas del Toro, Mangrove Inn ; among coral rubble; 03 Aug 2005; M. Faust, E. Gaiser, T. Haney, S. Richardson, M. Sorenson leg.; GCRL 6679 • 3 anamorph ♂, 2 leucomoprh ♂, 6 leucomorph ♀; Bocas del Toro, Hospital Point ; 9.3336°N, 82.2188°W; depth 15 m; among coral rubble and Halimeda ; 06 Aug 2005; S. DeGrave, M. Salazar leg.; GCRL 6680 • 3 anamorph ♂, 2 leucomorph ♀; Bocas del Toro, Cayo Solarte ; 9.3336°N, 82.2189°W; depth 2 m; among sponges, coral rubble, and sand; 07 Aug 2005; R. Collin, M. Faust, E. Gaiser, S. LeCroy, S. Richardson, M. Sorenson leg.; GCRL 6681 • 1 anamorph ♂, 2 leucomorph ♂, 6 leucomorph ♀; Bocas del Toro, Pigeon Key Reef ; 9.2693°N, 82.2489°W; depth 0.5–1 m; among Halimeda and Thalassia ; 09 Aug 2005; E. Baiser, T. A. Haney, S. LeCroy leg.; GCRL 6682 • 1 leucomorph ♀; Bocas del Toro, Isla Solarte ; 9.2901°N, 82.1897°W; depth 1–5 m; among Halimeda ; 08 Aug 2021; K. N. White leg.; USNM 1762930 • 2 leucomorph ♀; Bocas del Toro, Drago ; 9.4181°N, 82.3375°W; depth 2–3 m; among coral rubble; 09 Aug 2021; K. N. White leg.; USNM 1762931 • 1 leucomorph ♀; Bocas del Toro, Pandora ; 9.3278°N, 82.2222°W; depth 10 m; among coral rubble; 10 Aug 2021; K. N. White leg.; USNM 1762932 • 1 leucomorph ♀; Bocas del Toro, San Cristobal ; 9.2849°N, 82.2945°W; depth 1–3 m; among Dictyota ; 21 June 2023; K. N. White leg.; USNM 1762933 • 1 anamorph ♂, 1 leucomorph ♂, 6 leucomorph ♀; Bocas del Toro, Hospital Point ; 9.3319°N, 82.2148°W; depth 1–3 m; among coral rubble; 22 June 2023; K. N. White leg.; USNM 1762934 • 2 leucomorph ♀; Bocas del Toro, Drago ; 9.4134°N, 82.3334°W; depth 1–3 m; among coral rubble; 23 June 2023; K. N. White leg.; USNM 1762935 • 1 leucomorph ♀; Bocas del Toro, Swan Caye ; 9.4536°N, 82.3000°W; depth 2 m; among coral rubble; 24 June 2023; K. N. White leg.; USNM 1762936 • 2 anamorph ♂, 1 leucomorph ♂, 4 leucomorph ♀; Bocas del Toro, Crawl Caye ; 9.2476°N, 82.1290°W; depth 5–8 m; among coral rubble; 26 June 2023; K. N. White leg.; USNM 1762937 • 1 anamorph ♂; Bocas del Toro, Pandora ; 9.3333°N, 82.2185°W; depth 7 m; among coral rubble; 26 June 2023; K. N. White leg.; USNM 1762938 • 2 leucomorph ♀; Bocas del Toro, STRI Dock ; 9.3512°N, 82.2570°W; depth 0–1 m; dock scraping; 27 June 2023; K. N. White leg.; USNM 1762939 • 1 leucomorph ♂, 3 leucomorph ♀; Bocas del Toro, Cayo Zapatilla 1 ; 9.2699°N, 82.0587°W; depth 10–11 m; among coral rubble; 28 June 2023; K. N. White leg.; USNM 1762940 • 1 anamorph ♂, 6 leucomorph ♀; Bocas del Toro, Crawl Caye ; 9.2502°N, 82.1318°W; depth 5–13 m; among coral rubble; 29 June 2023; K. N. White leg.; USNM 1762941 .

Diagnosis.

Anamorph male. Head with lateral ridge, anterior margin concave, without anterodistal notch, ventral keel rectangular. Gnathopod 2 basis with acute process subdistally; propodus palm with three teeth.

Leucomorph male and female. Head ocular lobe rounded; ventral keel rounded, subacute distally. Gnathopod 1 propodus margin finely serrate with several small setae; carpus dentate and finely serrate, terminal spines smooth with terminal bulb. Gnathopod 2 propodus palm oblique with several serrations.

Distribution.

USA: Georgia to the Florida Keys ( Thomas 1997); Belize: Carrie Bow Caye ( Thomas 1997); Mexico ( Martín et al. 2013); Venezuela ( Martín et al. 2013); Panama: Bocas del Toro ( White 2011; present study).

Ecology and remarks.

This species occurs among sponges, Halimeda , Thalassia , and coral rubble at depths of 1– 11 m. Thomas (1997) reported this species from solitary ascidians at depths to 20 m. Panamanian specimens agree closely with previous descriptions of the species. Anamorph males have an anterior tubercle on the gnathopod 2 basis that was not illustrated in original description as noted by White (2011). Living anamorphs and leucomorphs are translucent with pale brown stripes and have red eyes.

Figures

Figure 11. Anamixis vanga, leucomorph female (l), 2.2 mm, head, gnathopod 2 medial, gnathopod 1 medial; anamorph male (a), 3.2 mm, head, gnathopod 2 medial. Scale bars: 0.5 mm.

Figure 23. Photographs of live specimens unless noted. A. Anamixis cavatura anamorph; B. Anamixis cavatura leucomorph; C. Anamixis vanga anamorph (ethanol-preserved specimen); D. Anamixis vanga leucomorph; E. Leucothoe alata (ethanol-preserved specimen); F. Leucothoe ashleyae; G. Leucothoe barana; H. Leucothoe flammosa. Scale bars: 1.0 mm.