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A New Species of Upogebia (Crustacea: Decapoda: Thalassinidea: Upogebiidae) from Okinawa Island, Ryukyu Islands
Abstract
Upogebia rupicola, a new species of upogebiid shrimp from Okinawa Island, Ryukyu Islands, lives in burrows made in siltstone substrates in the intertidal zone. It is similar to U. carinicauda (Stimpson, 1860), widely known from the Indo-West Pacific, but is distinguished from the latter by the structure and armament of the first pereopod and the armament of the lateral ridge of the anterior carapace.
... However, some important morphological features were not considered in their classification. A significant issue, therefore, is the uncertainty over the number of stone upogebiids inhabiting the subtropical islands of Japan, like the Ryukyu Islands [13,[15][16][17][18]. To resolve some of these debates on classification, we collected stone upogebiids in the Ryukyu Island Arc and reclassified them. ...
... d) Lateral view of the head (the square shown in Figure 2c). es: eyestalk, st: assemblage of the seta, dp 6) U. rupicola inhabits the siltstone or sandstone layers on Okinawa Island, as described by Komai [18]. ...
... U. semicircula (Figure 3b-1) may resemble U. rupicola in overall shape (Figure 4c-1), but molecular data ( Figure 5) suggested that reproductive isolation had occurred between these two species as long ago as 5.3 Ma (late Miocene). U. rupicola was described by Komai [18]. U. rupicola may also resemble U. carinicauda, which is widely distributed in the Indo-West Pacific [13]. ...
... This synonymisation was followed by Sakai (1982) and Sakai & Takeda (1995). Later, Komai, 2005 has been synonymised with U. carinicauda by Sakai (2006), but considered as valid by Ngoc-Ho (2008) and Sakai & Türkay (2014). Another species, different from, but similar to U. carinicauda, is U. saintlaurentae Ngoc-Ho, 2008; however, two of the three characters given to discriminate the two species from each other are quite variable in the former. ...
Sampling during the Comprehensive Marine Biodiversity Survey of Singapore yielded 102 specimens of Axiidea and Gebiidea belonging to 12 species in seven genera. Axiidea were represented by one to two specimens each of Gourretia sinica Liu & Liu, 2010 (Ctenochelidae), Aquaballianassa brevirostris (Sakai, 2002) (Callianassidae), Michaelcallianassa sinica Liu & Liu, 2009 and Karumballichirus karumba (Poore & Griffin, 1979)
(Callichiridae). The Gebiidea are represented by only the family Upogebiidae with six species from three genera, the most common being Upogebia hexaceras (Ortmann, 1894) with 34 specimens, followed by U. ancylodactyla de Man, 1905 with 25 specimens, U. darwinii (Miers, 1884) with 11 specimens, and U. carinicauda Stimpson, 1860 with nine specimens. The genus Paragebicula Sakai, 2006 is placed in synonymy of Neogebicula Sakai,
1982, and the latter genus is redefined. Four specimens belong to a new species, U. singaporensis, new species, which differs from its morphologically most similar congener U. srilankaensis Sakai, 2006, by the protruding lateral ridges of the carapace, the presence of a ventral spine on the first article of the antennal peduncle, and the cheliped with a dorsal median spine on the merus and a fully developed fixed finger. Five specimens represent
a further species new to science, Neogebicula johorensis, new species, which differs from the very similar N. leptomorpha (Sakai, 2006) by having only one postocular spine, the presence of a ventral spine on the proximal article of the antennular peduncle, the third and fourth articles of the antennal peduncle with ventral spine each, and the posterior margin of the telson with a small median spine. Wolffogebia phuketensis Sakai, 1982 and W. inermis Sakai, 1982 are represented by two and one specimens, respectively. Five of these species are recorded from Singapore for the first time.
... The main diagnostic features of the species are the dorsal surface of the telson bearing an elevated, sharp, transverse carina that connects to two blunt, lateral, longitudinal carinae (Fig. 10B); the presence of four teeth on the distal margin of the rostrum (one of them obsolete in the Kuwaiti specimen) and a single infra-rostral tooth; the presence of a conspicuous sharp tooth on the ventromesial surface of the cheliped propodus; and the dactylus being almost twice as long as the propodus. However, we believe that some synonymies proposed by Sakai (2006), for instance that of U. rupicola Komai, 2005, may need a re-assessment (see also Ngoc-Ho 2008;Komai et al. 2020). Nobili, 1904 (Fig. 11) Upogebia (Gebiopsis) octoceras Nobili, 1904: 236;Nobili 1906a: 98. Upogebia octoceras.-Ngoc-Ho ...
Seventeen species of shrimp-like decapod crustaceans (infraorders Caridea, Axiidea and Gebiidea) and two species of porcelain crabs (infraorder Anomura) are recorded for the first time from Kuwait, some of them also representing new records for the Arabian Gulf. The new records from Kuwait are: (1) Alpheus edamensis De Man, 1888; (2) Alpheus edwardsii (Audouin, 1826); (3) Alpheus macrodactylus Ortmann, 1890; (4) Alpheus maindroni Coutière, 1898; (5) Arete indicus Coutière, 1903; (6) Athanas parvus De Man, 1910; (7) Synalpheus gracilirostris De Man, 1910 [all Alpheidae]; (8) Latreutes mucronatus (Stimpson, 1860) [Hippolytidae]; (9) Thor paschalis (Heller, 1862) [Thoridae] (10) Periclimenella pettithouarsii (Audouin, 1826); (11) Anchistus custos (Forskål, 1775); (12) Urocaridella pulchella Yokes & Galil, 2006 [all Palaemonidae]; (13) Chlorocurtis jactans (Nobili, 1904) [Chlorotocellidae]; (14) Upogebia carinicauda (Stimpson, 1860); (15) Upogebia octoceras Nobili, 1904 [Upogebiidae]; (16) Balsscallichirus masoomi (Tirmizi, 1970), (17) Michaelcallianassa indica Sakai, 2002 [Callianassidae]; (18) Raphidopus persicus Ng, Safaie & Naser, 2012 and Polyonyx obesulus Miers, 1884 [Porcellanidae]. Most of these taxa have been previously recorded from other parts of the Arabian Gulf, mainly from the coasts of Iran and the United Arab Emirates, except for A. maindroni and U. pulchella, which are recorded from the Arabian Gulf for the first time. Most species are shown in colour photographs, some for the first time. In addition, the presence of Synalpheus quinquedens Tattersall, 1921 (Alpheidae), previously known from Kuwait based only on a questionable record in a popular field guide, is confirmed based on a single collected and preserved specimen.
... , 이웃 일본에서는 일본의 전 지역에 분포하는 쏙(Upogebia major) 이외에 요코야쏙 (Upogebia yokoyai), 나루토쏙(Upogebia narutensis) 등을 포함하여 15종의 쏙류가 보고되고 있다 (Sakai 1982;Itani 2004a;Sakai et al. 2004;Komai 2005). Liu and Liu (2008)에 의하면 중국에서도 14종이 보고되었으나 최근 분류학적 연구가 활발하게 진행되어 그 후 5종이 추가되 어 현재 총 19종이 보고되었다 (Liu and Liu 2010, 2013. ...
The mud shrimp Upogebia major (Upogebiidae: Decapoda: Crustacea) is a common species on muddy and sandy mud tidal flats in the west coast of Korea. They reside in Y-shaped burrows that can extend up to more than 2 meters below the sediment surface. They feed on suspended detritus carried into their burrow by the beating of their pleopods and captured by their hairy first two pairs of thoracic legs. Mud shrimp burrows provide a habitat for a variety of small organisms such as crabs, shrimps, polychaetes, and mollusks. Ovigerous females are observed from December to May. Females deposit eggs only once per breeding season. They start hatching in March and the pelagic larvae of first zoea appear in March and April, followed by benthic settlement in May. Growth over the first year is rapid, and females deposit their first eggs in the third breeding season, 31 months after their settlement. Adult shrimps live for 4~5 years. Depth of the burrow increases with body length. The deep burrows provide refuge from predators and physical stress, allowing the shrimps to survive for a long time. The mud shrimps supply oxygen-rich water to their deep burrows, and exert a great influence on the structure and metabolism of the tidal flat benthic community. However, recently this type of mud shrimp has posed a serious threat to the Korean clam industry along the west coast of Korea. The extensive burrowing shrimp populations suddenly invaded the tidal flats from 2010 where the clams (Ruditapes philippinarum) are raised. As a consequence, clam production has decreased by about 10% over the past three years in some Korean clam beds. Therefore, the objective of this study is to review the biology of this mud shrimp in order to seek solutions to control the burrowing of these shrimps.
The collections of the infraorders Thalassinidea Latreille, 1831 and Callianassidea Dana, 1852 logded in three German Museums, viz., Zoologische Staatssammlung, Munich (ZSM), Zoologisches Museum der Universität Hamburg, Hamburg (ZMH), and Museum für Naturkunde, Berlin (ZMB) were examined. The results of the present study indicate that the material of these collections comprises 10 families, 31 genera, including one new genus, and 73 species, three of which are new to science.
Several specimens of Upogebia issaeffi (Balss, 1913) found on Namhae Island off the southern coast of Korea, where they were collected in the intertidal boulder habitat, are described and illustrated. This species has been reported from Vladivostok, Russia to Kagoshima, Japan, but this is the first reported occurrence in Korean waters. The species, closely related to the common Upogebia major that have been reported to be in Korean waters by Kim (1973), are distinguished by the morphology of the dactylus of the first pereiopod. Specifically, in male U. issaeffi, the dactylus has a longitudinal crest bearing a row of fine transverse striae, two longitudinal rows of granules on the outer side, a row of 12-16 granules and another row of 10-13 oblique ridges on the inner side. However, in females, the dactylus lacks a row of transverse striae but bears a row of rounded granules instead on the upper margin on outer side. Oblique ridges are also present on the inner side, but they are much shorter and less conspicuous than in males.
Newly obtained material from Tokyo Bay, central Japan, enables a redescription of the poorly known upogebiid mud shrimp Upogebia imperfecta Sakai, 1982, which has been represented only by the holotype from the Yellow Sea, China. Remarkable sexual dimorphism of the rostral armament and morphology of the first pereopod is found in this species. The present material extends the known geographical range of the species to the Pacific coast of central Japan. A brief note on the taxonomy of Japanese Upogebiidae is provided.
[Upogebia snelliusi (Thalassinoidea, Upogebiidae) is recorded for the first time from Iriomote Island, Ryukyus, Japan. This species shows polymorphism in both males and females.
Upogebia snelliusi (Thalassinoidea, Upogebiidae) wird erstmals von Iriomote-jima, einer der Ryukyu-Inseln (Japan) gemeldet. Sowohl Männchen als auch Weibchen dieser Art sind polymorph., Upogebia snelliusi (Thalassinoidea, Upogebiidae) is recorded for the first time from Iriomote Island, Ryukyus, Japan. This species shows polymorphism in both males and females. Upogebia snelliusi (Thalassinoidea, Upogebiidae) wird erstmals von Iriomote-jima, einer der Ryukyu-Inseln (Japan) gemeldet. Sowohl Männchen als auch Weibchen dieser Art sind polymorph.]
Among the 516 taxa of thalassinideans so far described, there is a strong latitudinal increase in species numbers from high latitudes towards the equator in both hemispheres. Numbers of species in the northern hemisphere are similar to those in the southern one. Thirty-two percent of the species are found in the Indo-West Pacific and 22% in the Southwest Atlantic. All species are benthic and live either in marine or brackish water. Ninety-five percent of all thalassinideans inhabit shallow water (0-200 m); only three species have been found below 2,000 m. Especially the families Callianassidae, Upogebiidae, Thalassinidae, and Strahlaxiidae occur in the intertidal to very shallow waters (0-20 m), while most members of the Axiidae and Calocarididae are bathyal (200-2,000 m).
New record of Upogebia snelliusi Ngoc-Ho
- Sakai K
Mud shrimps, Upogebia, from the Eastern Pacific (Thalassinoidea : Upogebiidae)
- Williams A