Nobilum wenchii Hu & Tao, 1996

Guinot, Danièle, 2023, A new subfamily classification of the highly diversified Dorippidae H. Milne Edwards, 1837 (Crustacea, Decapoda, Brachyura, Dorippoidea), using morphological, molecular and palaeotonlogical data, with special emphasis on its unique female reproductive system, Zoosystema 45 (9), pp. 225-372 : 362

Nobilum wenchii Hu & Tao, 1996

Nobilum wenchii Hu & Tao, 1996: 65 , pl. 11, fig. 9. — Karasawa 2000: table 1. — Müller 2006: 42. — Schweitzer et al. 2010: 80. — Guinot et al. 2013: 187. — Sasaki 2019: 7797. — Van Bakel et al. 2020: fig. 10.26.

REMARKS

The carapace of Nobilum wenchii , from the Miocene of Taiwan, is longer and narrower than that of the extant N. histrio ( Figs 3F ; 21A ) and this shape more resembles a Neodorippe , except that in the latter the carapace is smooth ( Figs 3E ; 20A, B ). In addition, the posterior border of the carapace is described as “similar to a lip, protruded medially and inwardly”, which is not the case in Neodorippe where the rim is faint and the strip very narrow. It is however possible that the species belongs to the Heikeopsinae n. subfam.

Figures

FIG. 3. — Carapace diversity in the nine dorippid genera: A, Dorippe Weber, 1795 (D. quadridens); B, Dorippoides Serène & Romimohtarto, 1969 (D. facchino); C, Medorippe Manning & Holthuis, 1981 (?M. crosnieri); D, Heikeopsis Ng, Guinot & Davie, 2008 (H. aff. japonica); E, Neodorippe Serène & Romimohtarto, 1969 (N. callida); F, Nobilum Serène & Romimohtarto, 1969 (N. histrio); G, Paradorippe Serène & Romimohtarto, 1969 (P. cathayana); H, Philippidorippe Chen, 1986 (P. philippinensis); I, Phyllodorippe Manning & Holthuis, 1981 (P. armata). A-G, I: modified from Sin et al. (2009: fig. 3); H, from Chen (1986: pl. 1, fig. 3). The strip, which is shown here only in Dorippoides facchino (Herbst, 1785) and Medorippe?crosnieri Chen, 1988, is in fact present in all species of dorippids.

FIG. 21. — Heikeopsinae n. subfam.Nobilum histrio (Nobili,1903), Malaysia, Johore,Pontian, ZRC 2002.0491:A-D, ♂ 21.0 × 22.4 mm:habitus; B, anterior ventral view; C, thoracic sternum with pleon; D, thoracic sternum without pleon, penis and G1. E, F, ovigerous ♀ 22.1 × 24.7 mm: thoracic sternum, pleon and vulvae.

FIG. 20. — Heikeopsinae n. subfam. Neodorippe callida (Fabricius, 1798): A, young ♂ 10.1 × 10.3 mm, Singapore, Changi Point Beach, ZRC 2018.0445: habitus of young male; B, C, Andaman Sea, Phuket, Thailand, MNHN-IU-2016-10754 (ex ZRC 1998.1116): B, ♀ 14.0 × 15.0 mm, habitus; C, ♂ 13.5 × 14 mm: ventral view. D, E, ♂ 10.1 × 10.3 mm, same data as A, ZRC 2018.0445:D, thoracic sternum with pleon; E, without pleon, G1, press-buttons. F, ♀ 11.2 × 11.5 mm, same data as A, D, E, ZRC 2018.0445: anterior view. G, ♀ 11.2 × 11.5 mm, sama data as B, C, MNHN-IU-2016-10754: vulvae, press-buttons. H, ♀ 11.2 × 11.5 mm, same data as A, D, E, F, ZRC 2018.0445: vulvae.