scholarly journals The Philippines is a possible source of the Bactrocera dorsalis complex species (Diptera, Tephritidae) occasionally collected in the Ryukyu Islands of Japan; analyses of mitochondrial DNA

2008 ◽  
Vol 43 (4) ◽  
pp. 609-615 ◽  
Author(s):  
Masahiko Muraji ◽  
Shigehito Nakahara ◽  
Tatsuaki Ishida ◽  
Kazushige Minoura ◽  
Isao Miyazaki ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
The Philippines ◽  
Bactrocera Dorsalis ◽  
Ryukyu Islands ◽  
Complex Species ◽  
The Ryukyu Islands

Redescription of the brackish water crab Ptychognathus glaber Stimpson, 1858 based on the topotypic material from the Ogasawara Islands and new record of P. lipkei N.K. Ng, 2010 from Japan (Decapoda: Brachyura: Varunidae)

Zootaxa ◽  
2021 ◽  
Vol 5048 (1) ◽  
pp. 58-76
Author(s):  
TOMOYUKI KOMAI ◽  
TADAFUMI MAENOSONO ◽  
TOSHIFUMI SAEKI ◽  
TOHRU NARUSE
Keyword(s):  
16S Rrna ◽  
Genetic Analysis ◽  
16S Rrna Gene ◽  
New Record ◽  
The Philippines ◽  
Rrna Gene ◽  
Ryukyu Islands ◽  
Ogasawara Islands ◽  
The Ryukyu Islands ◽  
Mitochondrial 16S Rrna Gene

Examination of material from various Japanese localities clarified that the estuarine crab Ptychognathus glaber Stimpson, 1858 is possibly restricted to the Ogasawara Islands, Japan. Specimens from the Ryukyu Islands, thought to represent P. glaber, actually represent P. lipkei N.K. Ng, 2010 instead, previously known only from Cebu, the Philippines. Ptychognathus glaber is redescribed in detail, and differentiating characters between it and P. lipkei are reassessed. Previous literature records of P. glaber are reviewed in the light of our findings. Genetic analysis using partial sequences of the mitochondrial 16S rRNA gene suggests that P. glaber is genetically closer to P. ishii Sakai, 1939 than to P. lipkei, and thus P. ishii is also compared morphologically with P. glaber.  

scholarly journals A review of some common Indo-Malayan and western Pacific species of Chthamalus barnacles (Crustacea: Cirripedia)

2003 ◽  
Vol 83 (4) ◽  
pp. 797-812 ◽  
Author(s):  
A.J. Southward ◽  
W.A. Newman
Keyword(s):  
Indian Ocean ◽  
Southern China ◽  
The Philippines ◽  
Western Pacific ◽  
Ryukyu Islands ◽  
Mariana Islands ◽  
Type Specimens ◽  
The Ryukyu Islands ◽  
The Indian Ocean ◽  
The Western Pacific

The type specimens of the common tropical intertidal barnacles Chthamalus malayensis and C. moro, were re-investigated and compared with other specimens of Chthamalus from the Indian Ocean, Indo-Malaya, northern Australia, Vietnam, China and the western Pacific, using ‘arthropodal’ as well as shell characters.  Chthamalus malayensis occurs widely in Indo-Malayan and tropical Australian waters. It ranges westwards in the Indian Ocean to East Africa and northwards in the Pacific to Vietnam, China and the Ryukyu Islands. Chthamalus malayensis has the arthropodal characters attributed to it by Pope (1965); conical spines on cirrus 1 and serrate setae with basal guards on cirrus 2.  Chthamalus moro is currently fully validated only for the Philippines, Indonesia, Taiwan, the Xisha (Paracel) Islands, the Ryukyu Islands, the Mariana Islands, the Caroline Islands, Fiji and Samoa. It is a small species of the ‘challengeri’ subgroup, lacking conical spines on cirrus 1 and bearing pectinate setae without basal guards on cirrus 2. It may be a ‘relict’ insular species.  Chthamalus challengeri also lacks conical spines on cirrus 1 and has pectinate setae without basal guards on cirrus 2. Records of C. challengeri south of Japan are probably erroneous. However, there is an undescribed species of the ‘challengeri’ subgroup in the Indian Ocean, Indo-Malaya, Vietnam and southern China and yet more may occur in the western Pacific. The subgroups ‘malayensis’ and ‘challengeri’ require genetic investigation.  Some comments are included on the arthropodal characters and geographical distributions of Chthamalus antennatus, C. dalli and C. stellatus.

New records of species of the Polyonyx sinensis group (Crustacea: Decapoda: Anomura: Porcellanidae) from Japan, the Philippines, Singapore, and Malaysia, with descriptions of two new species

Zootaxa ◽  
2018 ◽  
Vol 4429 (2) ◽  
pp. 303 ◽  
Author(s):  
MASAYUKI OSAWA ◽  
TOHRU NARUSE ◽  
PETER K. L. NG
Keyword(s):  
New Species ◽  
New Records ◽  
The Philippines ◽  
Peninsular Malaysia ◽  
Ryukyu Islands ◽  
West Pacific ◽  
Southern Japan ◽  
The Ryukyu Islands ◽  
Two New Species ◽  
Pacific Species

Five species of the genus Polyonyx Stimpson, 1858 are reported from southern Japan, the Philippines, Singapore, and Peninsular Malaysia. All of them belong to the P. sinensis group, which is morphologically defined by having the dactyli of the ambulatory legs each with the dorsal claw being much smaller than the ventral claw. Two species are described as new to science, one each from Peninsular Malaysia and the Ryukyu Islands in Japan, and their affinities are discussed. Polyonyx boucheti Osawa, 2007, P. heok Osawa & Ng, 2016, and P. thai Werding, 2001, are also newly reported from southern Japan, the Philippines, and Singapore. A key to the Indo-West Pacific species of the P. sinensis group is provided. 

Redescription and new records of a poorly known leucosiid crab, Pseudophilyra punctulata Chen & Ng, 2003, and description of a new species of Pseudophilyra from Japan (Crustacea: Decapoda: Brachyura)

Zootaxa ◽  
2019 ◽  
Vol 4550 (2) ◽  
pp. 251
Author(s):  
TOMOYUKI KOMAI ◽  
MIHO SHIMETSUGU ◽  
PETER K.L. NG
Keyword(s):  
New Species ◽  
New Records ◽  
The Philippines ◽  
Ryukyu Islands ◽  
Immature Female ◽  
Immature Male ◽  
The Ryukyu Islands ◽  
A New Species

A poorly known leucosiid crab, Pseudophilyra punctulata Chen & Ng, 2003, originally described on the basis of an immature male holotype and an immature female paratype from Singapore, is rediscovered and rediagnosed on the basis of material from Thailand, the Philippines and the Ryukyu Islands (Japan). In addition, a new species closely related to P. punctulata, P. parilis, is described and illustrated on the basis of material from Mie Prefecture, Honshu mainland of Japan. The new species is distinguished from P. punctulata by the coarser granules bordering the lateral carapace margins and the different shape of the gonopods. Pseudophilyra tridentata Miers, 1879, is also compared with P. punctulata and P. parilis n. sp. because of the close similarities in the overall morphology of the carapace and appendages, but can easily be differentiated by the smoother carapace and thoracic sternum surface, different shape of the carapace and the stouter cheliped palm. It is possible that previous records of P. tridentata outside Japan might contain more than one species. 

scholarly journals Description of two new species of Pseudochrominae from northern Palawan and Mindoro, Philippine Islands (Teleostei: Perciformes: Pseudochromidae)

Zootaxa ◽  
2011 ◽  
Vol 3140 (1) ◽  
pp. 49 ◽  
Author(s):  
ANTHONY C. GILL ◽  
JEFFREY T. WILLIAMS
Keyword(s):  
New Species ◽  
West Coast ◽  
The Philippines ◽  
Ryukyu Islands ◽  
The Ryukyu Islands ◽  
Two New Species ◽  
Fin Shape

Pseudochromis fuligifinis is described from 12 specimens from Verde Island, west coast of Mindoro and Apo Reef in the Philippines. It closely resembles P. elongatus Lubbock from Indonesia and P. striatus Gill, Shao & Chen from the Batanes Islands, Taiwan and the Ryukyu Islands, but differs in various meristic and coloration details. Manonichthys scintilla is described from five specimens from Coron Island and Apo Reef. It differs from congeners in fin shape and live coloration details.

A new squat lobster species of the genus Munida (Decapoda, Anomura, Munididae) from the deep-sea off the Ryukyu Islands, Japan

Crustaceana ◽  
2017 ◽  
Vol 90 (7-10) ◽  
pp. 969-979
Author(s):  
Tomoyuki Komai
Keyword(s):  
New Species ◽  
Deep Sea ◽  
The Philippines ◽  
Ryukyu Islands ◽  
Single Male ◽  
Okinawa Island ◽  
Male Specimen ◽  
Squat Lobster ◽  
The Ryukyu Islands ◽  
Japanese Waters

Munida michaeli, a new species of deep-sea squat lobster (Munididae), is described and illustrated on the basis of a single male specimen collected off Okinawa Island, Ryukyu Islands, Japan, at depths of 641-650 m. It closely resemblesM. sacksiMacpherson, 1993 known with certainty only from the Philippines, but different spination of the carapace dorsum and the greatly reduced armature of the flexor margins of the ambulatory dactyli distinguish the new species from the latter. With the addition of the present new species, 41 species ofMunidaLeach, 1820 are now known from Japanese waters.

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