Macromedaeus quinquedentatus (Krauss, 1843)

Hsueh, Pan-Wen & Tzeng, You-Wei, 2024, Positive association between PTN polymorphisms and schizophrenia in Northeast Chinese Han population., Zoological Studies 63 (47), pp. 141-149 : 28

Macromedaeus quinquedentatus (Krauss, 1843)

( Fig. 17G )

Macromedaeus quinquedentatus Guinot 1968: 708 ; 1971: 1068; Serène 1968: 75; 1984: 179, fig. 104, pl. XXV D–E (for complete synonymy); Ng et al. 2008: 203 [List].

Material examined: 1 ñ, NMNS 8772-58, 5.8 × 3.9, Shanfu, Liuqiu Township, Pingtung County, 4 May 2007.

Distribution: Indo-West Pacific; Hawaii ( Serène 1984).

Remarks: The morphology of the present specimen ( Fig. 17G ) aligns with the defining characteristics of M. quinquedentatus (Krauss, 1843) . These features include five teeth on the anterolateral margins, a fronto-orbital width slightly less than half the greatest width of the carapace, and distinct carapace regions separated by large, deep furrows ( Serène 1984: 177, pl. XXV D–E). This report marks the first record of this species from Taiwan.

Figures

Fig. 17. Liomera bella (Dana, 1852) (male, CW 5.7 mm; NMNS 8772-49), A; Liomera rugata (H. Milne-Edwards, 1834) (male, CW 8.7 mm; NMNS 8772-50), B; Leptodius sanguineus (H. Milne-Edwards, 1834) (female, CW 11.2 mm; NMNS 8772-52), C; Lioxanthodes alcocki Calman, 1909, female (CW 4.8 mm; NMNS 8772-56(1)); male (CW 3.2 mm; NMNS 8772-55(1)), D, E; Macromedaeus crassimanus (A. Milne-Edwards, 1867) (female, CW 6.2 mm; NMNS 8772-57), F; Macromedaeus quinquedentatus (Krauss, 1843) (female, CW 5.8 mm; NMNS 8772-58), G; Paraxanthias notatus (Dana, 1852) (male, CW 9.8 mm; NMNS 8772-61), H: A–D, F–H, habitus, dorsal view; E, G1, right, external view. Scale bars: A, D = 1.0 mm; B, C, F–H = 2.0 mm; E = 0.2 mm.