Studies on Eumalacostraca: a homage to Masatsune Takeda

  title={Studies on Eumalacostraca: a homage to Masatsune Takeda},
  author={Hironori Komatsu and Junji Okuno and Kouki Fukuoka},
,butalso some significant differences that may imply that shell-carrying in thedromiids has evolved more than once. We provide a summary of relevantmorphological evidence and a hypothesis about the evolution of camouflagein dromiid crabs. The morphological and behavioural characters will need tobe eventually mapped on to a molecular phylogeny.Specimens that were used for this study came from the Western AustraliaMuseum (WAM), Queensland Museum, Brisbane (QM) and the Allan Han-cock Collection, now… 

Figures from this paper

Melitid amphipods from the Gulf of Thailand, with a description of Dulichiella pattaniensis, a new species

Two species of melitid amphipod were collected from the Gulf of Thailand and one of them is new to science, and Melitalati latiflagella Ren & Andres, 2012 has not been previously reported from Thai Waters.

Phylogeny of Stenopodidea (Crustacea : Decapoda) shrimps inferred from nuclear and mitochondrial genes reveals non-monophyly of the families Spongicolidae and Stenopididae and most of their composite genera

The present molecular phylogeny provides some support that stenopoididean shrimps colonised the deep sea in multiple circumstances and suggests that the morphological characters currently adopted to define genera are mostly invalid and substantial taxonomic revisions are required.

Two new species and new records of Microprosthema Stimpson, 1860 (Crustacea: Decapoda: Stenopodidea: Spongicolidae) from the Indo-West Pacific.

Two new species of the spongicolid shrimp genus Microprosthema Stimpson, 1860 are described and illustrated on the basis of material collected recently in Australia and Japan, significantly extending their previously known distribution ranges.

A Review of the Ecomorphology of Pinnotherine Pea Crabs (Brachyura: Pinnotheridae), with an Updated List of Symbiont-Host Associations

It is concluded that, due to convergent evolution, unrelated species with a similar host interaction might display the same morphological adaptations.

The oldest higher true crabs (Crustacea: Decapoda: Brachyura): insights from the Early Cretaceous of the Americas

The ages and geographical distributions of the oldest eubrachyuran‐like taxa suggest that the oldest higher true crabs might have originated in the Americas; that they were already morphologically diverse by the late Early Cretaceous; and that their most recent common ancestor must be rooted in the EarlyCretaceous, or even the Late Jurassic.

A puzzling frog crab (Crustacea: Decapoda: Brachyura) from the Early Cretaceous Santana Group of Brazil: frog first or crab first?

  • J. Luque
  • Biology, Environmental Science
  • 2015
Comparisons with other raninoidans support the hypothesis that a more ‘crab-like’ body plan is the plesiomorphic condition for raninoidsans, and that the ‘frog- like’ architecture of Palaeocorystidae, and perhaps the Raninoidea as a whole, reflects a derived condition related to a specialized burrowing lifestyle.

A new species of hermit crab, Diogenes heteropsammicola (Crustacea, Decapoda, Anomura, Diogenidae), replaces a mutualistic sipunculan in a walking coral symbiosis

An interesting case in which an organism phylogenetically distant from Sipuncula takes over the symbiotic role in association with a walking coral, which is unique in that its lodging is a living solitary coral that grows with the hermit crab in an accommodation–transportation mutualism.



A New Hermit Crab of the Genus Discorsopagurus (Crustacea: Anomura: Paguridae) from Japan

This new species inhabits boreholes made by the rock-boring clam, Barnea manilensis inornata (Bivalvia: Pholadidae) or an uncertain host.

A new xanthid crab (Decapoda, Brachyura) from a submarine cave in the Philippines

A new species of the family Xanthidae, Gaillardiellus holthuisi, is described based on a single male from a submarine cave in Cebu, the Philippines, which differs from its congeners in having thickened and peculiarly curved cheliped fingers, with each immovable finger armed with a large triangular tooth.

A new genus and two new species of unusual dromiid crabs (Brachyura: Dromiidae) from northern Australia

A new genus, Desmodromia n.gen., and two new species of dromiid crabs are described from northern Australia. In Desmodromia the rostrum is tridentate, the anterolateral teeth are well developed, the

New fossil Brachyura (Decapoda: Homoloidea, Dorippoidea, Carpilioidea) from the United Kingdom

A new family of Dorippoidea, Goniochelidae, embraces the monotypic Eocene–Oligocene genus Goniochele. The Cyclodorippoida is extended into the Albian (Early Cretaceous) with the referral of Hillius

Phylogenetic Analysis and Revised Classification of Podotrematous Brachyura (Decapoda) Including Extinct and Extant Families

Abstract A phylogenetic analysis based upon 30 extinct and extant taxa of podotrematous brachyuran decapods using 74 characters shows that Podotremata sensu Guinot, 1977 is not monophyletic and

A new Majid crab from the Miocene Matsuyama Group, Saitama Prefecture, Central Japan

In this paper is presented a description of a new majid crab f rom the Tsuchishio Format ion of the Middle Miocene Matsuyama Group , Saitama Prefecture. The genus Achaeus, to which the new species is

Description of a New Fossil Crustacean from the Lower Greensand

  • C. Gould
  • Geology
    Quarterly Journal of the Geological Society of London
  • 1859
I regard the Crustacean which I am about to describe with peculiar interest, on account of its belonging to that group of the Brachyura which comprehends the highest forms of the class, and of which

A New Calcarobiotus (Tardigrada: Macrobiotidae) from the Imperial Palace of Japan

The new species, Calcarobiotus imperialis, is closely related to C. occultus Dastych, but can be distinguished from the latter mainly by having larger pores on egg surface, a narrower buccal tube, and larger claws.


Analysis of the maternally inherited 16S rDNA of the mitochondrial DNA demonstrated that the presumed hybrid carried S. olivacea mtDNA, and it is concluded that the examined animal is indeed the hybrid offspring of a female S. Olivacea and a male S. serrata.

Spider Crabs of the Genus Huenia De Haan, 1837 (Crustacea, Decapoda, Brachyura) from Japan, with Descriptions of Two New Species

Two new species of the genus Huenia De Haan of the family Epialtidae (Majidae s.l.) are described from Japan under the names of H. nagaii and H. toyoshioae, which are sexually dimorphic and individually variable according to the developmental stages in the shape of the carapace.