Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific

Naderloo, Reza; Türkay, Michael; Chen, Huilian

doi:10.11646/zootaxa.2500.1.1

Cited by 33 publications

(20 citation statements)

References 8 publications

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“…However, it was recorded from the southern Red Sea by Lewinsohn (1977) and from Safaga south Hurghada by Naderloo, et al (2010). -World: This species was recorded from Gulf of Aden, Socotra, Arabian Sea, Oman (Dhofar), South Gulf of Oman and South-eastern Persian Gulf by Naderloo, et al (2010). Remarks: The present specimens are in agreement with those described by Naderloo et al, (2010).…”

Section: General Characterssupporting

confidence: 84%

“…At the laboratory, the specimens were sorted, sexed, and all available morphometric measurements were taken to the nearest centimeters using Caliper venrneer according to Crane (1975), Naderloo, et al (2010). Al terminology comprising: carapace length (C.L), carapace width (C.W), front width (F.W), orbital width (O.W), chelae length (Ch.…”

Section: Methodsmentioning

confidence: 99%

“…L), and fingers length (F.L), were used in the present work follow those mentioned by Crane (1975). While NIOF is the abbreviation for the National Institute of Oceanography and Fisheries, Red Sea Branch (Hurghada).The median and lateral gastric teeth of the gastric mill were described according to Sakai and Turkay (2013) and Naderloo, et al (2010). All examined specimens were identified for the specific levels according keys of Barnard (1950), Crane(1975), Turkay et al (1996), Edmonson (1962), Naderloo et al, (2010) and Sakai and Turkay (2013), in addition to other available literature including Monod (1938), Lewinsohn (1977), Ng et al (2008), andMechie, et al (2015) were also used.…”

Section: Methodsmentioning

confidence: 99%

“…-Local: This is the first record from South Sinai including Gulf of Aqaba and represents the maximum northward distribution in the Red Sea. However, it was recorded from the southern Red Sea by Lewinsohn (1977) and from Safaga south Hurghada by Naderloo, et al (2010). -World: This species was recorded from Gulf of Aden, Socotra, Arabian Sea, Oman (Dhofar), South Gulf of Oman and South-eastern Persian Gulf by Naderloo, et al (2010).…”

Section: General Charactersmentioning

confidence: 99%

“…They recorded Ocypode saratan and O. cordimanus from the Red Sea. However, Naderloo, et al (2010) recorded Uca albimana from Safaga, south Hurghada (25° N), indicating to the northward distribution for Uca albimana along the Egyptian coasts to Safaga.…”

mentioning

confidence: 95%

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Revision of family Ocypodidae (Brachyura: Crustacea) from the Egyptian Red Sea and Mediterranean Coasts

Khalifa

et al. 2016

Egyptian Academic Journal of Biological Sciences, B. Zoology

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Carapace is squarish-shaped (Plate, 1 c & d), has indistinct regions. Front is narrow and varies from 0.30-0.60cm. Orbit is wide, reaches half carapace width; varies from 1.04-2.00cm. Lateral half of orbital margin almost straight. Exorbital angle is acute, triangular and protruding outward (Plate, 1c). Eyestalks not prolonged distally beyond cornea, but bearing a brush at distal end of cornea (Plate, 2b). Chelae are dissimilar, have stridulating ridge composes of 69-96 tubercles with striae (Plate, 2 e). Outer and inner surface of finger and thumb with two transverse ridges convergent at its tips (distinct in small chela than large one); finger varies from 0.80-1.70cm.Large and small chela vary from 1.30-3.00cm. Anterior surface of 2 nd and 3 rd propodus of walking legs are naked (Plate, 2 h a & k). First male pleopod is curved laterally at distal end, lacking a palp (Plate, 2 n). Female genital opening has lateral rim continuous lengthwise to elongate operculum, which is directed antero-mesially under median rim (Plate, 2 p). Size: Carapace: 2.01-3.40 cm in CL and 2.54-4.10 cm in CW. Color: Carapace, chelipeds, all walking legs and fingertips are pale to light yellow color, but ventral surface of walking legs is white. Habitat: This species is common and digs its burrows at the upper intertidal and supralittoral sandy zones.

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Section: General Characterssupporting

confidence: 84%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: General Charactersmentioning

confidence: 99%

mentioning

confidence: 95%

See 3 more Smart Citations

Revision of family Ocypodidae (Brachyura: Crustacea) from the Egyptian Red Sea and Mediterranean Coasts

Khalifa

et al. 2016

Egyptian Academic Journal of Biological Sciences, B. Zoology

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Gastric teeth of some thoracotreme crabs and their contribution to the brachyuran phylogeny

Brösing

Türkay

2011

Journal of Morphology

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The gastric teeth of three ocypodoid species were investigated using scanning electron microscopy, and the morphological results were discussed with respect to the known food preferences. The species were chosen in particular because of contrasting ideas about their relationships within the Thoracotremata. For the genera Heloecius, Dotilla, Mictyris, and ''Uca'' (s. str.), we find a specific correlation of the gastric teeth with the suspension feeding. The lateral gastric teeth of Uca have no prominent lateral teeth cusps, and most of their teeth surface consists of transverse comb-like lamellae. However, this possible food adaptation does not exclude the usability of specific teeth characters to distinguish species of suspension feeders. The closer relationship of the Dotillidae to grapsoid lines of gecarcinid or sesarmid crabs suggested by molecular data is not supported by the gastric teeth. For the genus Ucides, we found several characters that distinguish Ucides from the remaining ocypodoid genera Heloecius, Dotilla, Mictyris, and ''Uca.'' In particular, the structures of the lateral and the dorsomedian teeth show some similarities to genera of the Gecarcinidae and Sesarmidae. Our results suggest that foregut characters can be used for phylogenetic analyses.

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Morphology of the gastric mill teeth in dotillid crabs (Crustacea: Brachyura: Dotillidae) from Indonesia

Murniati

Asakura

Nakano

et al. 2023

Journal of Morphology

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The gastric mill is a prominent structure in the digestive system of brachyuran crabs, consisting of a median tooth plate and a pair of lateral tooth plates. Among crab species that are deposit feeders, the morphology and size of the gastric mill teeth are correlated with the preferred substrate types and food spectrum. In this study, we provide a detailed description of the morphology of the median and lateral teeth of the gastric mills in eight species of dotillid crabs from Indonesia, and compare them in relation to habitat preferences and molecular phylogeny.Ilyoplax delsmani, Ilyoplax orientalis, and Ilyoplax strigicarpus have comparatively simple shapes of their median and lateral teeth, with fewer teeth on each lateral tooth plate compared to Dotilla myctiroides, Dotilla wichmanni, Scopimera gordonae, Scopimera intermedia, and Tmethypocoelis aff. ceratophora, which have more complexly shaped median and lateral teeth, with a greater number of teeth on each lateral tooth plate. The number of teeth on lateral tooth correlates with habitat preference, that is, dotillid crabs inhabiting muddy substrata have fewer teeth on the lateral tooth plate, and those inhabiting sandy substrata have a more teeth. Phylogenetic analysis using partial COI and 16S rRNA genes supports that teeth morphology is similar among closely related species. Therefore, the description of median and lateral teeth of the gastric mill is expected to contribute to the systematic study of dotillid crabs.

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Taxonomic revision of the wide-front fiddler crabs of the Uca lactea group (Crustacea: Decapoda: Brachyura: Ocypodidae) in the Indo-West Pacific

Cited by 33 publications

References 8 publications

Revision of family Ocypodidae (Brachyura: Crustacea) from the Egyptian Red Sea and Mediterranean Coasts

Revision of family Ocypodidae (Brachyura: Crustacea) from the Egyptian Red Sea and Mediterranean Coasts

Gastric teeth of some thoracotreme crabs and their contribution to the brachyuran phylogeny

Morphology of the gastric mill teeth in dotillid crabs (Crustacea: Brachyura: Dotillidae) from Indonesia

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