The present contribution reevaluates the fossil record of the genus Jaxea (Decapoda: Gebiidea: Laomediidae) and gives an emended diagnosis and an updated description of Jaxea kuemeli based on well preserved material from the lower and middle Miocene strata of Austria, Slovakia and Hungary. The species is distinguished from the extant J. nocturna on the basis of the tooth formula of the cheliped...

Light microscopical observation of serial sections of four kinds of decapoda which living in seas around Japan (Ommastrephes sloanei pacificus, Sepia esculenta, Doryteuthis bleekeri, Sepioteuthis lessoniana) was carried out. These specimens were fixed alive with 10% formaldehyde solution diluted with sea water and then dehydrated without decalcification with ethylalcohol diluted with sea water....

The fiddler crab Uca formosensis Rathbun, 1921 (Crustacea: Decapoda: Ocypodidae), restricted to the western part of Taiwan and the offshore Penghu (Pescadores) Islands in the Taiwan Strait, has been placed under the subgenus Uca (Gelasimus) Latreille, 1817 (= Uca (Thalassuca) Crane, 1975) based on only less than a dozen specimens, but later suggested under the subgenus Tubuca Bott, 1973 because...

Two specimens of an undescribed species of pontoniine shrimp of the genus Periclimenaeus Borradaile 1915 from Maui Island, Hawaiian Islands, are described and illustrated, raising to three the number of species known from the Hawaiian Islands. The new species is remarkable for the greatly reduced molar process and sharp lateral cutting edge on the major second pereiopod dactyl and most closely ...

Abstract This research aims to analyze the kelp, diversity, evenness, dominance, food characteristics, habitat and physical chemical parameters of Holothuroidea in Sancang marine preserve. The method used this is descriptive with sampling using purposive sampling, assisted by help lie transects, quadratic transect ecology Holothuroidea. Based on field observations, species exiting Cikabodasan b...

Los cangrejos de montaña (Decapoda: Pseudothelphusidae) son considerados sensibles a diversas alteraciones antropogénicas y ambientales en los ecosistemas acuáticos. En quebradas la región andina colombiana, que drenan varios agroecosistemas, existe poca información sobre estos organismos. Aquí se muestran resultados abundancia Hypolobocera bouvieri, tres microcuencas altoandinas Colombia su re...