| | Species | Location | Morphological characteristics | Similarity toward data in GenBank (%) | Intraspecific divergence from similar locations (%) | Genetic divergence with G. blodgettii in GenBank using CO1-5P (%) | Genetic divergence with similar species in GenBank using CO1-5P (%) |
| | G. arcuata | Cage net, Lawas | Reddish brown, discoid holdfast, cylindrical, irregular, and arcuate branching, tip pointed or 2-5 short branchlets, constricted at base, 4-5 layers of medulla, 2-3 layers of cortex | 99 (G. blodgettii) | 0.15 | 0.17–0.35 | 13.59–14.90 | | G. changii | Cage net, Santubong | Dark red, discoid holdfast, branching occasionally and irregularly, constricted at base, tip pointed or two short branchlets, 3-4 layers of medulla, 2-3 layers of cortex | 99 (G. blodgettii) | 0.15 | 0.17–0.35 | Not available | | G. blodgettii | Mangrove, Asajaya | Dark red, discoid holdfast, branching frequently, secund or irregular, constricted at base, pointed tip, 3-4 layers of medulla, 2-3 layers of cortex | 99 (G. blodgettii) | 0.15 | 0.17–0.35 | 0.17–0.35 |
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