Dorippe judicis Gripp, 1964

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 : 359

Dorippe judicis Gripp, 1964

Dorippe judicis Gripp, 1964: 105 , 106, pl. 17, fig. 7a, b. — Sasaki 2019: 7774.

REMARKS

Dorippe judicis , from the Lower Miocene of northern Germany, represented by a carapace and a partially dorsally exposed pleon, is a poorly known species as most palaeontologists have not treated it (e.g. not listed by Schweitzer et al. 2010, 2021), with the exception of Polkowsky (2014: 125). The wider than long and short carapace, without lateral spine, the wide front, the two deep main grooves, easily identifiable with the precervical and cervical grooves of Recent Dorippidae (see Interpretation of grooves on the carapace dorsal surface in Dorippidae ), leading to a strongly subdivided dorsal surface with a prominent, three-ridged cardiac region, the absence of tubercles or granules, and the first dorsally exposed pleonal somites are typical dorippid characters ( Fig. 40A ). We would not agree with Müller (2006: 42) followed by Jagt et al. (2015) that it could be an ethusid. It cannot be a species of Dorippe or a representative of Dorippinae n. stat. ( Fig. 3A ). Gripp (1964: 106, as Dorippe lanata ) compared it with the extant Medorippe lanata ( Fig. 3C ) and with the Miocene Dorippe fankhauseri (see above). The genus needs to be clarified.

Figures

FIG. 40. — Fossil crabs: A, the poorly known true dorippid, Dorippe judicis Gripp, 1964 (pl. 17, fig. 7a), Lower Miocene of northern Germany, generic status to be reappraised: carapace and pleon partially dorsally exposed (photocopy from Gripp 1964: pl. 17, fig. 7a); B-F, Goniochele angulata Bell, 1858; B-D, F, Eocene London Clay, Ypresian, Isle of Sheppey, Kent; E, Ypresian, Forest, Brussels, Belgium: B, carapace with preserved lateral spines, except long epibranchial spine, broken, concealed with matrix (Griffiths’ collection); C, carapace of paralectotype (lateral spines lost) with well-preserved protruding concave rim of posterior margin and narrow male pleon, with first three somites dorsally exposed (Wetherell’s collection, NHM PL OR 59085); D, E, two views of male thoracic sternum, with triangular first sternites and press-buttons on suture 5/6 (D, Jeff Saward collection);E, original from Collins & Smith 1993: pl. 2, fig. 3, as Silvacarcinus laurae Collins & Smith, 1993; F, ventral view of a female, with narrow elongated sternites 1-4 and wider last sternites (Griffiths’ collection, NHM 36652). Abbreviation: v, enormous vulvae. All, courtesy of Barry van Bakel.

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.