Lithodes formosae, a new species of king crab from Taiwan (Crustacea: Decapoda: Lithodidae)

Zootaxa ◽  
2010 ◽  
Vol 2332 (1) ◽  
pp. 61 ◽  
Author(s):  
SHANE T. AHYONG ◽  
TIN-YAM CHAN

A new species of king crab is described from Taiwan, Lithodes formosae sp. nov. The new species resembles L. longispina Sakai, 1971, from Japan, L. megacantha Macpherson, 1991, from French Polynesia, and L. paulayi Macpherson & Chan, 2008, from Guam, in having long dorsal spines in adults, though it is most similar to L. paulayi. Lithodes formosae is distinguished from the aforementioned species primarily by differing branchial spine arrangement and proportional spine length. Comparison of partial cytochrome oxidase subunit I (COI) gene sequences from L. formosae sp. nov., L. paulayi and L. longispina supports the specific status of the new species. Six species of Lithodidae are known from Taiwan, of which L. formosae sp. nov. is the first to be described as new from Taiwan.

Zootaxa ◽  
2019 ◽  
Vol 4668 (3) ◽  
pp. 410-420
Author(s):  
CHAO WANG ◽  
YUNYUN GAO ◽  
THOMAS PAPE ◽  
DONG ZHANG

Sarcophaga Meigen, 1826 is proposed as a senior synonym of Cornexcisia Fan & Kano, 2000, syn. nov. and Fanzideia Xue, Verves & Du, 2011, syn. nov. Cornexcisia Fan & Kano, 2000, stat. rev. is given status as a subgenus and is considered a senior synonym of Fanzideia Xue, Verves & Du, 2011, syn. nov. at the subgeneric level. Cornexcisia is argued to contain S. (Cornexcisia) longicornuta (Fan & Kano, 2000), comb. nov., S. (C.) cygnocerca (Xue, Verves & Du, 2011), comb. nov., S. (C.) kurahashii (Shinonaga & Tumrasvin, 1979), subgen. comb. nov. (from Phallosphaera Rohdendorf) and S. (C.) suthep Pape & Bänziger, 2003, subgen. comb. nov. (from Rosellea Rohdendorf). Sarcophaga (C.) kurahashii is newly recorded from China (Yunnan), the male is redescribed and the female is described for the first time, supported by photographs, illustrations and mitochondrial cytochrome oxidase subunit I (COI) gene sequences. Species of Cornexcisia share an exceptionally long postpedicel in the female and the following apomorphic distiphallic appendages in the male: juxta ventro-proximally with an apically divided arm with cuticular pile, and lateral styli bifurcated from the base with each branch elongate, gently curved and slightly expanded apically. A key to the species of Cornexcisia is provided. 


Zootaxa ◽  
2008 ◽  
Vol 1877 (1) ◽  
pp. 37 ◽  
Author(s):  
HSI-TE SHIH ◽  
TOHRU NARUSE ◽  
DARREN C. J. YEO

A new species of freshwater crab of the genus Geothelphusa, G. siasiat sp. nov., is described from Hsinchu and Miaoli counties, northwestern Taiwan. The new species can be distinguished morphologically from similar and geographically close species from western Taiwan by a suite of characters of the carapace, ambulatory legs, thoracic sternum, male abdomen, and male first pleopods. Comparisons of the DNA sequences encoding parts of the mitochondrial large subunit (16S) rRNA and cytochrome oxidase subunit I (COI) genes of specimens from western Taiwan further corroborate this finding. The opportunity is taken here to discuss the taxonomy of the poorly known species, Geothelphusa candidiensis Bott, 1967, based on a re-examination of the holotype, and the distribution of Geothelphusa species from western Taiwan. The report of G. siasiat sp. nov. brings the total number of species of Geothelphusa species known to 52.


Zootaxa ◽  
2010 ◽  
Vol 2623 (1) ◽  
pp. 52 ◽  
Author(s):  
SAKIKO ORUI SAKAGUCHI ◽  
HIROSHI UEDA

A new species of the calanoid copepod, Pseudodiaptomus nansei sp. nov., which has formerly been identified as P. inopinus Burckhardt, 1913, is described from estuaries of the Nansei Islands, southernmost Japan. This new species was compared with a population of the closely related P. inopinus from the neighboring Kyushu Island, western Japan, which is redescribed here. The new species is readily distinguishable from P. inopinus by the absence of dorsal spiniform processes on the fifth pediger in both sexes, short posterior projections of the genital operculum, and thin caudal setae of the female instead of swollen seta in P. inopinus. The mitochondrial gene cytochrome oxidase subunit I (mtCOI) sequences of P. nansei differed by 21–26% from the examined population of P. inopinus, in contrast to a 0–3% difference within the population of each species. The absence of descriptions identifiable to P. nansei in previous studies outside the Nansei Islands, coupled with no occurrence of P. inopinus there, suggests that P. nansei is endemic to Nansei Islands and geographically segregated from P. inopinus.


ENTOMON ◽  
2019 ◽  
Vol 44 (2) ◽  
pp. 155-160
Author(s):  
Keerthy Vijayan ◽  
R. Sugantha Sakthivel ◽  
T.V. Sajeev

The presence of the body colour polymorphism in the tropical invasive pest giant African snail is reported for the first time from South India. Three different body colour polymorphs were recognised viz. grey, black and white. The grey body colour is the most common polymorph. The black and white colour polymorphs are found to be in almost equal proportions in the reported localities with the grey counterparts. The cytochrome oxidase subunit I (COI) sequences of the three colour polymorphs are found to be identical. The presence of the body colour polymorphism in south India may be attributed to the avian predation and other selection pressures.


Meta Gene ◽  
2020 ◽  
Vol 25 ◽  
pp. 100759
Author(s):  
Yesenia Margarita Vega-Sánchez ◽  
María Olalla Lorenzo-Carballa ◽  
Diogo Silva Vilela ◽  
Rhainer Guillermo-Ferreira ◽  
Ricardo Koroiva

Zootaxa ◽  
2012 ◽  
Vol 3367 (1) ◽  
pp. 165 ◽  
Author(s):  
MARIA CELIA (MACHEL) D. MALAY ◽  
TOMOYUKI KOMAI ◽  
TIN-YAM CHAN

A new species of Calcinus is described from western Pacific material, including specimens previously identified as Cal-cinus anani Poupin & McLaughlin, 1998. The new species C. fuscus n. sp. differs from C. anani in the colouration in life,and their specific distinction is genetically supported by the barcoding gene cytochrome oxidase I (COI). The two speciesalso have different geographic distributions, with C. fuscus n. sp. ranging from Japan to the Philippines, Papua New Guin-ea, and New Caledonia, while C. anani is restricted to French Polynesia. Moreover C. fuscus n. sp. is found at shallower depths than its sister species C. anani.


2017 ◽  
Vol 22 (2) ◽  
pp. 67-74
Author(s):  
Muhammad Nur Findra ◽  
Isdradjad Setyobudiandi ◽  
Nurlisa Alias Butet ◽  
Dedy Duryadi Solihin

Giant clam population has been decreased in a few years. Resource management requires information from various aspects, such as ecological, population, and other aspects. This study was aimed at assessing the genetic profile of Tridacna giant clam in Wakatobi National Park waters using Cytochrome oxidase subunit I (COI) genetic marker. Sample collection was conducted around the three main islands, i.e., Wangi-wangi, Kaledupa, and Tomia. Genetic analysis using COI gene may contribute in identifying giant clams up to the species level and showed the relationship among species. The research found 41 specific nucleotide sites for the clams. T. crocea, T. squamosa and T. maxima had 2, 15 and 24 sites, respectively. COI gene as a biological marker was able to separate groups of giant clam by species. Nucleotide variation of T. crocea from Wakatobi was the highest among other locations, so it could be used as a genetic source for translocation and domestication. Keywords: cytochrome oxidase subunit I, specific nucleotide, Tridacna, Wakatobi National Park


2020 ◽  
Vol 4 (1) ◽  
pp. 8-16
Author(s):  
Dian Rezki Muliani ◽  
Fredinan Yulianda ◽  
Nurlisa A Butet

Oysters belong to the Crassostrea, which is a type of shellfish that lives as benthos in waters under the same substrate and environmental conditions will exhibit similar morphological changes in response. There are many types of oysters that have a similar shape are often an obstacle to differentiate of Crassostrea species through morphological identification. The purpose of this research was to identify the types of oysters found in the waters of Delta Cimanuk through analysis of the morphology and nucleotide diversity of Cytochrome Oxidase subunit I (COI) gene, as basic information on proper management and conservation. The morphological identification results show that there were two species of the Crassostrea. Identification of species through the Barcoding DNA technique shows that there is one type of oyster: Crassostrea iredalei with an accuracy of 99.5%.


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