Palaeocorystoidea

Van Bakel, Barry W. M., Guinot, Danièle, Artal, Pedro, Fraaije, René H. B. & Jagt, John W. M., 2012, A revision of the Palaeocorystoidea and the phylogeny of raninoidian crabs (Crustacea, Decapoda, Brachyura, Podotremata) 3215, Zootaxa 3215 (1), pp. 1-216 : 167

publication ID	https://doi.org/10.11646/zootaxa.3215.1.1
publication LSID	lsid:zoobank.org:pub:B20CD4A6-D150-4CCF-931F-ED6D7EA54E8C
persistent identifier	https://treatment.plazi.org/id/4601C935-FF36-F9CA-5BB4-FF23F149FAC1
treatment provided by	Felipe (2021-08-24 00:34:49, last updated by Plazi 2023-11-04 14:44:42)
scientific name	Palaeocorystoidea
status

Treatment

Palaeocorystoidea versus Raninoidea De Haan, 1839

Extant Raninoidea View in CoL are discussed and listed by e.g. Bourne (1922b), Monod (1956), Gordon (1963, 1966), Gomes Corrêa (1970), Griffin (1970), Serène & Umali (1972), Hartnoll (1979), Goeke (1980, 1981, 1984, 1986), Davie (1989), Werding & Müller (1990), Guinot (1993b), Guinot & Bouchard (1998), Dawson & Yaldwyn (1994, 2000, 2002), Guinot & Quenette (2005), Ahyong et al. (2009) and Guinot et al. (in press).

Carapace.

‒ Carapace areolated and generally with cervical groove in Palaeocorystoidea , indistinct in Camarocarcinidae (not areolated, obsolete cervical groove in Raninoidea ).

‒ Anterolateral margin of carapace with multiple teeth or tubercles in Palaeocorystoidea , fewer, however, in Camarocarcinidae (unarmed or with a single tooth or two teeth in Raninoidea ).

Pterygostome, endostome and mxp3.

‒ Coxa of mxp3 large, flabelliform in Palaeocorystoidea (small and flat in Raninoidea ).

‒ Antero-lateral corner of sternite 4 not in contact with pterygostome in Palaeocorystoidea , large coxa of mxp3 intercalated between thoracic sternum and pterygostome, presence of Milne-Edwards openings (sternum/ pterygostome junction present, absence of Milne-Edwards openings in Raninoidea , except Marylyreidinae n. subfam.).

‒ Pterygostome with groove and blunt crest in Palaeocorystoidea (groove or crest absent in Raninoidea ).

Appendages.

‒ Pereiopods equally spaced, putatively not separated by sternal extensions in Palaeocorystoidea (sterno-pleural extensions separating P1 and P2, and P2 and P3, thus pereiopods unequally spaced, in Raninoidea ).

Thoracic sternum.

‒ No exposed pleurites in Palaeocorystoidea (pleurites 5‒7 partially exposed (‘gymnopleurity’) and calcified in Raninoidea ).

‒ Sterno-pleural extensions absent (present between P1 and P2 and between P2 and P 3 in Raninoidea ).

‒ Spermathecal apertures large, oval, separate, thus normal podotreme condition in Palaeocorystoidea (embedded in sternite 7, small, close to each other, deeply recessed in Raninoidea , rarely otherwise).

Abdomen.

‒ Male abdomen rather long, telson reaching sternite 4, completely flexed under the body and locked in Palaeocorystoidea (short and posterior, telson only reaching sternite 6, not completely flexed and not locked in Raninoidea , except Lyreididae ).

Abdominal holding.

‒ Paired sternal tooth (double peg) on episternite 5 in Palaeocorystoidea (absent in Raninoidea , except in Lyreididae , with two teeth at tip of a short or long hook-like projection formed by extended episternite 5).

References

Ahyong, S. T., Naruse, T., Tan, S. H. & Ng, P. K. L. (2009) Infraorder Brachyura: sections Dromiacea, Raninoida, Cyclodorippoida. Part II, 27 - 198. In: Chan, T. - Y., Ng, P. K. L., Ahyong, S. T. & Tan, S. H. (Eds.), Crustacean Fauna of Taiwan: Brachyuran Crabs, Volume I - Carcinology in Taiwan and Dromiacea, Raninoida, Cyclodorippoida. National Taiwan Ocean University, Keelung.

Bourne, G. C. (1922 b) The Raninidae: a study in carcinology. Journal of the Linnean Society of London, 35 (Zoology, no. 231), 25 - 79, pls. 4 - 7.

Dawson, E. W. & Yaldwyn, J. C. (1994) The frog crabs (Crustacea: Brachyura: Raninidae) - a species list and bibliographic index. Occasional Papers of the Hutton Foundation, 6, 1 - 60.

Dawson, E. W. & Yaldwyn, J. C. (2000) Description and ecological distribution of a new frog crab (Crustacea, Brachyura, Raninidae) from northern New Zealand waters, with keys to recent raninid genera and Notosceles species. Tuhinga (Records of the Museum of New Zealand Te Papa Tongarewa), 11, 47 - 71.

Goeke, G. D. (1980) Range extensions of six western Atlantic frog crabs (Brachyura: Gymnopleura: Raninidae) with notes on the taxonomic status of Lyreidus bairdii. Proceedings of the Biological Society of Washington, 93, 145 - 152.

Goeke, G. D. (1981) Symethinae, new subfamily, and Symethis garthi, new species, and the transfer of Raninoides ecuadorensis to Notosceles (Raninidae: Brachyura: Gymnopleura). Proceedings of the Biological Society of Washington, 93, 971 - 981.

Goeke, G. D. (1984) Sexual dimorphism in species of Raninoides (Brachyura: Raninidae) and the status of Raninoides schmitti Sawaya, 1944. Gulf Research Reports, 7, 377 - 380.

Goeke, G. D. (1986) Decapod Crustacea: Raninidae. In: Forest, J. (Ed.), Resultats des Campagnes MUSORSTOM I et II. Philippines, Tome 2. Memoires du Museum d'Histoire naturelle (Paris), nouvelle serie, A. Zoologie, 133 (1985), 205 - 228.

Gomes Correa, M. M. (1970) Crustaceos braquiuros brasileiros da familia Raninidae. Boletim do Museu Nacional, nova serie, Zoologia, 276, 1 - 21, pls. 1 - 7.

Gordon, I. (1963) On the relationship of Dromiacea, Tymolinae and Raninidae to the Brachyura. In: Whittington, H. B. & Rolfe, W. D. I. (Eds.), Phylogeny and evolution of Crustacea, 51 - 57. Special Publication, Museum of Comparative Zoology, Cambridge, Massachusetts.

Gordon, I. (1966) On the spermatheca in the Raninidae (Crustacea: Decapoda). In: Barnes, H. (Ed.), Some contemporary studies in marine science. Allen and Unwin, London, pp. 1007 - 1016.

Griffin, D. J. G. (1970) A revision of the Recent Indo-West Pacific species of the genus Lyreidus De Haan (Crustacea, Decapoda, Raninidae). Transactions of the Royal Society of New Zealand, Biological Sciences, 12 (10), 89 - 112, pls. 1 - 2.

Guinot, D. (1993 b) Donnees nouvelles sur les Raninoidea de Haan, 1841 (Crustacea Decapoda Brachyura Podotremata). Comptes Rendus de l'Academie des Sciences (Paris), Sciences de la vie, (3) 316, 1324 - 1331.

Guinot, D. & Bouchard, J. - M. (1998) Evolution of the abdominal holding systems of brachyuran crabs (Crustacea, Decapoda, Brachyura). Zoosystema, 20, 613 - 694.

Guinot, D. & Quenette, G. (2005) The spermatheca in podotreme crabs (Crustacea, Decapoda, Brachyura, Podotremata) and its phylogenetic implications. Zoosystema, 27, 267 - 342.

Hartnoll, R. G. (1979) The phyletic implications of spermathecal structure in the Raninidae (Decapoda: Brachyura). Journal of Zoology (London), 187, 75 - 83.

Monod, T. (1956) Hippidea et Brachyura ouest-africains. Memoires de l'Institut francaise d'Afrique Noire, 45, 1 - 674.

Serene, R. & Umali, A. F. (1972) The family Raninidae and other new and rare species of brachyuran decapods from the Philippines and adjacent regions. The Philippine Journal of Science, 99 (1970), 21 - 105, pls. 1 - 9.

Werding, B. & Muller, H. - O. (1990) Frog crabs of the coast of N-Colombia (Crustacea: Decapoda: Raninidae). Senckenbergiana biologica, 70, 209 - 219.