title: On the occurrence ofCtenocheles(Decapoda, Axiidea, Ctenochelidae) in the Bohemian Cretaceous Basin.
abstract: Because of close morphological affinities, fossil cheliped fragments of the ghost shrimpCtenocheles(Decapoda, Axiidea, Ctenochelidae) can be easily misidentified as remains of different decapod crustacean taxa. Re-examination of the Cretaceous decapods deposited in the National Museum in Prague revealed that all supposed specimens of the lobster genusOncopareiafound in the Middle Coniacian calcareous claystones of the Březno Formation, including one of the Fritsch's original specimens ofStenocheles parvulus, actually belong toCtenocheles. This material together with newly collected specimens from the same locality, allowed for erection of a new species,Ctenocheles fritschi.Its major chela possesses a serrated ischium and ovoid, unarmed merus; therefore, it is considered a close relative of the extantC. colliniandC. maorianus.Ctenocheles fritschisp. nov. represents the first report on the occurrence of the genus from the Bohemian Cretaceous Basin. It is one of the oldest records ofCtenochelesand simultaneously one of the best preserved fossils of the genus reported to date. Confusing taxonomy ofS. parvulusis reviewed and shortly discussed.
authors.affiliation: Natural History Museum, Vienna, Burgring 7, AT-1010 Vienna, Austria; Department of Geology and Palaeontology, Faculty of Natural Sciences, Comenius University, Mlynská dolina G1, SK-842 15 Bratislava, Slovakia; matus.hyzny@nhm-wien.ac.at , hyzny.matus@gmail.com.
authors.forename: Matúš
authors.initials: M
authors.lastname: Hyžný
authors.affiliation: Institute of Geology and Palaeontology, Faculty of Science, Charles University, Albertov 6, CZ-128 43 Prague, Czech Republic; veselskamartina@gmail.com.
authors.forename: Martina Kočová
authors.initials: MK
authors.lastname: Veselská
authors.affiliation: Regional Museum in Most, Československé armády 1360, CZ-434 38 Most, Czech Republic.
authors.forename: Pavel
authors.initials: P
authors.lastname: Dvořák
keywords: Bohemian Cretaceous Basin; Březno Formation; Coniacian; Ctenocheles; Oncopareia; Stenocheles; decapod crustaceans