Corystes cassivelaunus (Pennant, 1777), 1850

BOYKO, CHRISTOPHER B., 2002, A Worldwide Revision Of The Recent And Fossil Sand Crabs Of The Albuneidae Stimpson And Blepharipodidae, New Family (Crustacea: Decapoda: Anomura: Hippoidea), Bulletin of the American Museum of Natural History 2002 (272), pp. 1-396 : 395-396

Corystes cassivelaunus (Pennant, 1777) Figure 1B

Cancer cassivelaunus Pennant, 1777: 6 , pl. 7, fig. 13.

Cancer personatus Herbst, 1785: 193 , pl. 12, fig. 71.

Hippa symnista [sic]: Fabricius, 1787: 329 (part) (not Albunea symmysta (Linnaeus, 1758)) .

Albunea Symnista [sic]: de Villers, 1789: 157–158 (part) (not Albunea symmysta (Linnaeus, 1758)) .

Hippa dentata Fabricius, 1793: 475 .

Euryala denata: Weber, 1795: 94.

Albunea dentata: Fabricius, 1798: 398 . – Lamarck, 1801: 155. – Herbst, 1804: 31 (list).

Albunea personata: Lamarck, 1801: 155.

Corystes dentata: Roux, 1829: 70–72 , pl. 12.

Corystes cassivelaunus: White, 1850: 21 .—Christiansen, 1969: 34–37, fig. 12.

REMARKS: The type or types for Hippa dentata are lost (Zimsen, 1964). The types of Cancer personatus are in the ZMB (K. Sakai, 1999).

Although moderately convergent with albuneids, and also adapted to a sand­burrowing lifestyle, corystids have long been recognized as brachyurans, primarily because cause their fifth pereopods are not reduced. This species exhibits so strong a sexual dimorphism that males and females were identified as separate species ( personata and dentata ) for many years.

THIIDAE DANA, 1852 Thia LEACH, 1815

Hippa: Fabricius, 1793: 474 (part) (not Hippa Fabricius, 1787 ).

Albunea: Fabricius, 1798: 372–373 , 397 (part). – Herbst, 1804: 29–31 (part). – Desmarest, 1823: 283 (part). – Desmarest, 1825: 172–173 (not Albunea Weber, 1795 ).

albunea: Latreille, 1803: 171–172 (part) (not Albunea Weber, 1795 ).

Thia Leach, 1815: 312 .

Lepidops: Miers, 1878: 331–332 (part) (not Lepidopa Stimpson, 1858 ).

Lepidopa: Gordon, 1938: 187–190 (part) (not Lepidopa Stimpson, 1858 ).

REMARKS: This genus is no. 1577 on the ‘‘Of­

ficial list of generic names in zoology’’ (ICZN,

1964).

Figures

Fig. 1. Convergent crabs: A. Thia scutellata (Fabricius, 1793). B. Corystes cassivelaunus (Pennant, 1777). C. Albunea carabus (Linnaeus, 1758). D. Ranina ranina (Linnaeus, 1758). E. Notopus dorsipes (Fabricius, 1787). A, B, after Hayward et al. (1995), C, after Zariquiey Alvarez (1968), D, after Tinker (1965), E, specimen from Madagascar (MNHN). Figures not given to scale.