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Population features of Microphrys bicornutus Latreille, 1825 (Brachyura, Majidae) from Isla Margarita, Venezuela
TLDR
The results indicate that the sex ratio is nearly 1:1 during the entire year of the crab Microphrys bicornutus from Isla Margarita, Venezuela. Expand
Monogamy does not last long in Pontonia mexicana, a symbiotic shrimp of the amber pen-shell Pinna carnea from the southeastern Caribbean Sea
TLDR
Overall, the data suggests that monogamy in P. mexicana does not last long and that males switch among host individuals in search of receptive females. Expand
A new species of Lysmata (Crustacea, Decapoda, Hippolytidae) from Venezuela, southeastern Caribbean Sea
TLDR
This new species can be distinguished from other closely related species of Lysmata by the number of teeth, length and shape of the rostrum, the relative length of the antennular peduncle, and thenumber of carpal articles of the second pereiopod. Expand
Population dynamics and reproductive output of the non-indigenous crab Charybdis hellerii in the south-eastern Caribbean Sea
TLDR
The reproductive dynamic of a shallow subtidal population that invaded Isla Margarita, Venezuela, south-eastern Caribbean Sea > 15 years ago and has persisted in the region up to date, disagrees with the generalized idea of exotic populations ‘thriving’ in an environment free of natural enemies. Expand
Abbreviated larval development of Tunicotheres moseri (Rathbun, 1918) (Decapoda, Pinnotheridae), a rare case of parental care in brachyuran crabs
TLDR
Tunicotheres moseri (Rathbun, 1918) presents a rare case of post-hatching parental care not recorded previously among brachyuran decapods, and it is concluded that Tunicotheres should not be assigned to the Pinnotherinae sensu stricto. Expand
Molecular phylogeny of enigmatic Caribbean spider crabs from the Mithrax–Mithraculus species complex (Brachyura: Majidae: Mithracinae): ecological diversity and a formal test of genera monophyly
TLDR
The present molecular phylogeny does not support the separation of the species within this complex into the genera Mithrax and Mithraculus, and indicates that this complex is paraphyletic, as it includes the genus Microphrys. Expand
Toxicity of copper sulphate during early and late embryonic development of a palaemonid shrimp (Crustacea)
TLDR
The experimental group continuously exposed to copper, as well as that exposed during the second half of development, resulted in higher embryo mortality with a consequent decreased number of hatched larvae when compared to the control group, suggesting the later period of embryogenesis was more sensitive to copper than the early one. Expand
Ultrastructure of spermatozoa of spider crabs, family Mithracidae (Crustacea, Decapoda, Brachyura): Integrative analyses based on morphological and molecular data
TLDR
The spermiotaxonomy of these species of Mithracidae represent a novel set of data that corroborates the most recent taxonomic revision of the family and can be used in future taxonomic and phylogenetic studies within this family. Expand
LARVAL DEVELOPMENT OF PACHYCHELES SERRATUS (DECAPODA: ANOMURA: PORCELLANIDAE) UNDER LABORATORY CONDITIONS, WITH NOTES ON THE LARVAE OF THE GENUS
TLDR
Larval stages and the megalopa of Pachycheles serratus are fully described and illustrated on the basis of laboratory-reared materials collected from Margarita Island, Venezuela, and a diagnostic character of the present species is the existence of a short mesial spine on the maxillular endopodite, unique among known zoeae of the genus PachyCheles. Expand
Shell Utilization Pattern by the Hermit Crab Isocheles sawayai Forest and Saint Laurent, 1968 (Anomura, Diogenidae) from Margarita Island, Caribbean Sea, Venezuela
Isocheles sawayai is a hermit crab that is occasionally mentioned in the literature, and recently its distribution was extended to Venezuelan waters. Because no information on the biology and shellExpand
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