New species of Elaphoidella Chappuis, 1929 and Schizopera Sars, 1905 (Copepoda: Harpacticoida) from two caves in northeastern and southern Thailand

Zootaxa ◽  
2021 ◽  
Vol 5051 (1) ◽  
pp. 550-569
Author(s):  
SANTI WATIROYRAM ◽  
LA-ORSRI SANOAMUANG ◽  
ANTON BRANCELJ

Two new copepod species from two caves in northeastern and southern Thailand are described. Elaphoidella isana sp. nov. and Schizopera paktaii sp. nov. were collected from the unsaturated zone of freshwater pools fed only by dripping water. They are closely related to E. intermedia Chappuis, 1931 and S. validior Sars, 1909, respectively. Elaphoidella isana sp. nov. can be distinguished from its closest relative by the armature of P4 and P5, and by the ornamentation of caudal rami. Schizopera paktaii sp. nov. differs from its relative S. validior in the armature of P1, P5 and caudal rami.  

1995 ◽  
Vol 52 (S1) ◽  
pp. 166-174 ◽  
Author(s):  
S.C. Johnson ◽  
Z. Kabata

Two new species of Pseudotaeniacanthus, P. margolisi n.sp. and P. septemsetigerus n.sp. (Copepoda, Poecilostomatoida, Taeniacanthidae), described and illustrated herein, are parasitic on the gills of unidentified species of moray eels (family Muraenidae) in the Gulf of Aqaba, Red Sea. Pseudotaeniacanthus margolisi differs from its closest congener in armature of the terminal segment of its fourth exopod and unique sexually dimorphic armature of its second leg. Pseudotaeniacanthus septemsetigerus is distinguished by the armature of its endopods, as well as by the proportions and armature of its caudal rami. A revised key to the species of the genus is appended.


1999 ◽  
Vol 73 (5) ◽  
pp. 850-859 ◽  
Author(s):  
A. J. Boucot ◽  
L. R. M. Cocks ◽  
P. R. Racheboeuf

Twelve brachiopod taxa are described from the Early Devonian (probable early Emsian) Pa Samed Formation of southern Thailand, including the new genus and species Quasiprosserella samedensis (Ambocoeliidae?) and the new species Plectodonta forteyi, Caplinoplia thailandensis, and Clorinda wongwanichi. They are the first undoubted Devonian brachiopods from Thailand. They represent the deeper-water Benthic Assemblages BA4-5, and, although clearly indicative of the Old World Realm, cannot be assigned to a particular biogeographical region. A new undescribed fauna from the contemporary Zebingyi Formation of Burma (Myanmar) is also noted.


Zootaxa ◽  
2021 ◽  
Vol 4965 (2) ◽  
pp. 396-400
Author(s):  
SOLOMON BOGA VADON ◽  
PATTIRA PONGTIPATI ◽  
PONGSAK LAUDEE

The male of a new species of caddisfly, Agapetus kaengkrungensis n. sp. (Glossosomatidae) is described and illustrated from Kaeng Krung National Park, Surat Thani Province, southern Thailand. Agapetus kaengkrungensis n. sp. is distinguished from other species by the characters of segment IX and inferior appendages. The distributions of the Agapetus spp. of Thailand are mapped and discussed.  


ZooKeys ◽  
2021 ◽  
Vol 1038 ◽  
pp. 179-194
Author(s):  
Sota Komeda ◽  
Kenta Adachi ◽  
Susumu Ohtsuka

A new species of the continental shelf hyperbenthic genus Pilarella is described, the first from the Indo-Pacific. This is the second species of Pilarella known, and the first description of a male in the genus. The new species is easily distinguished from other species of Pilarella (P. longicornis) based on: (1) short caudal rami, approximately 1.5 times longer than wide; (2) 2 setae on the mandibular endopod; (3) 6 setae on the maxillular coxal epipodite; and (4) in the female, a short left antennule reaching the posterior border of the genital double-somite. The new diagnosis of Pilarella differs from Metacalanus in the separation of ancestral segments IX–XII and XIV–XV of the antennule, and the presence of 5–6 setae on the maxillular praecoxal arthrite. Pilarella is also separated from Metacalanalis based on the absence of a seta on the third ancestral segment of the antennary exopod, the symmetry of legs 1–3, the presence of a medial basal seta on the female leg 5, and 2 lateral exopodal spines on the female leg 5. A molecular phylogenetic analysis of some representative genera of the family Arietellidae, including the present new species, recovers two arietellid clades (Metacalanus- and Arietellus-clades) as in previous studies. Dichotomous keys for the genera of Arietellidae and the species of Pilarella are included.


2020 ◽  
Vol 58 (1-3) ◽  
Author(s):  
Chanita Yoosukkee ◽  
Anissara Damthongdee ◽  
Hathaichanok Jongsook ◽  
Tanawat Chaowasku

Zootaxa ◽  
2020 ◽  
Vol 4778 (2) ◽  
pp. 311-328
Author(s):  
TIANQI LAN ◽  
ZHIYUAN YAO ◽  
GUO ZHENG ◽  
PRASIT WONGPROM ◽  
SHUQIANG LI

The genus Savarna Huber, 2005 comprises only five species, from southern Thailand, Peninsular Malaysia and Sumatra. In this study, five new species are described from Thailand: Savarna bannang sp. nov. (Yala), S. chiangmai sp. nov. (Chiangmai), S. huahin sp. nov. (Prachuap Kiri Khan), S. satun sp. nov. (Satun), S. thungsong sp. nov. (Nakhon Srithammarat). All new species are described from males and females. The distribution of S. chiangmai sp. nov. represent the northernmost record of the genus. 


Zootaxa ◽  
2015 ◽  
Vol 3919 (1) ◽  
pp. 81 ◽  
Author(s):  
SANTI WATIROYRAM ◽  
ANTON BRANCELJ ◽  
LA-ORSRI SANOAMUANG

Elaphoidella thailandensis sp. nov. and E. jaesornensis sp. nov., collected during an investigation of cave-dwelling copepod fauna in the northern part of Thailand, are described and figured herein. The new species were collected from pools filled by percolating water from the unsaturated zone of a karstic aquifer in Phitsanulok and Lampang Provinces, respectively. Elaphoidella thailandensis, from Tham Khun cave, is distinguished from its congeners by the two-segmented endopod of pediger 1, the absence of endopod on pediger 4, and the setal formula 4, 5, 6 for the distal exopodal segment of pedigers 2–4. Elaphoidella jaesornensis, from Tham Phar Ngam cave, is distinguished from its most closely related species, E. namnaoensis Brancelj, Watiroyram & Sanoamuang, 2010, by the armature formula of the endopod of pedigers 2–5. The geographical distribution and ecology of Harpacticoida from Thai caves is also presented. 


Zootaxa ◽  
2019 ◽  
Vol 4691 (1) ◽  
pp. 83-87 ◽  
Author(s):  
ZI-WEI YIN ◽  
SOPARK JANTARIT

A new cavernicolous species of the genus Araneibatrus Yin & Li, 2010, A. phuphaphet sp. nov., is described from Phu Pha Phet Cave, Satun Province, southern Thailand. The discovery extends the known distributional range of Araneibatrus for more than 1,500 km southwards. The conspicuously spinose pronotum, sexually modified profemur of the male, and unique configuration of the aedeagus serve to readily separate the new species from all known congeners. 


Zootaxa ◽  
2009 ◽  
Vol 2035 (1) ◽  
pp. 41-68 ◽  
Author(s):  
STEEN WILHELM KNUDSEN ◽  
MAJA KIRKEGAARD ◽  
JØRGEN OLESEN

A new species of Tantulocarida was found off the coast of Disko Island, West Greenland. The new species, Arcticotantulus kristenseni sp. nov., is exclusively found on an as yet undescribed species of Bradya Boeck, 1873 (Copepoda, Harpacticoida) caught at depths of 200 m off the coast in muddy sediments. A total of 44 individuals were found, and 38 were examined by use of LM and SEM; these represented different stages of the life cycle: tantulus larvae, developing males, parthenogenetic females, and what may be only the third record of a developing sexual female. Arcticotantulus kristenseni is tentatively placed in Deoterthridae based on the mode of formation of the male trunk sac, the pattern of ornamentation on the tergites and cephalic shield, and the number of setae on the thoracopods and caudal rami. It is suggested that the genus Arcticotantulus Kornev, Tchesunov & Rybnikov, 2004 is removed from Basipodellidae and placed in Deothertridae instead, in accordance with the mode of trunk sac development in males and the absence in the latter family of a cephalic rostrum. Various internal anatomical features were examined, including the tubular structures inside the head of the tantulus larvae. The first live photographs of any species of Tantulocarida are presented. This is also the first report on Tantulocarida from West Greenland.


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