Trimma maiandros Hoese, Winterbottom & Reader, 2011

Winterbottom, Richard & Hoese, Douglass F., 2015, A revision of the Australian species of Trimma (Actinopterygii, Gobiidae), with descriptions of six new species and redescriptions of twenty-three valid species, Zootaxa 3934 (1), pp. 1-102 : 52

Trimma maiandros Hoese, Winterbottom & Reader, 2011

Zigzag Pygmygoby

Fig. 26–27 , Pl. 2 D

Trimma maiandros Hoese, Winterbottom & Reader, 2011:146 (Yonge Reef, Queensland, Australia); Allen & Erdmann 2012:941 Cocos (Keeling) Ids to Marshall Ids and Japan).

Trimma sp.: Hayashi & Shiratori, 2003:44; Yano 1988:4.

Trimma sp. 2: Senou et al., 2004:108.

The detailed description of this species has been published very recently ( Hoese et al., 2011), and only the Diagnosis is repeated here. The distribution is given in Fig. 27 .

Diagnosis. A species of Trimma with a partly scaled predorsal region, midline naked or partly naked, cycloid scales at the sides of the nape reaching to above a point between posterior margin of the operculum and the eyes; cheek and operculum naked; pectoral-fin base usually fully scaled with posterodorsal 2 scales slightly enlarged; prepelvic region covered with small cycloid scales in 5–6 rows; interorbital narrow, with a moderate groove; no or very shallow groove behind this; a distinct low ridge at the posterior end of the interorbital; a low crest on the nape from the first dorsal origin to above the posterior opercular margin, extending anteriorly into a shallow median groove, groove extending to just behind eyes; second dorsal rays usually I 9; anal rays usually I 8; pectoral rays unbranched or with 1–5 rays branched at the extreme tips; fifth pelvic ray unbranched and about one-fourth to onehalf the length of the fourth ray, other rays with 2 terminal tips, pelvic fins largely separate, connected only at base, fins widely separate, the distance between the two fins being greater than the width of the base of a single fin; posteriormost prepelvic scale covering the basal membrane; a dark brown spot or bar extending posteroventrally from the eye; and the body with irregular brown interconnecting bars, forming a zigzag pattern ( Fig. 26 ).

Figures

FIGURE 26. Trimma maiandros AMS I. 20757 - 081, Raine Id., Queensland. Photo by D. F. Hoese.

FIGURE 27. Map of the distribution of Trimma maiandros (solid diamonds) and T. meristum (solid square with white center). A solid circle with a white star indicates localities at which both species occur.