A new freshwater species of Neorhynchoplax Sakai, 1938 (Crustacea: Decapoda: Hymenosomatidae) from Patna, Bihar, India

Zootaxa ◽  
2011 ◽  
Vol 3063 (1) ◽  
pp. 53 ◽  
Author(s):  
PETER K. L. NG ◽  
HASKO F. NESEMANN ◽  
GOPAL SHARMA
Keyword(s):  
New Species ◽  
Freshwater Species ◽  
Freshwater Crab ◽  
Northern India ◽  
A New Species

A new species of hymenosomatid freshwater crab, Neorhynchoplax Sakai, 1938, is described from Patna, Bihar, northern India. The species resembles the Indian N. woodmasoni (Alcock, 1895) and N. alcocki Kemp, 1917, but differs in the form of the carapace, armature on the cheliped merus, number of spines on the dactylus of the ambulatory legs, and structure of the male abdomen.

A new species of freshwater crab of the genus Himalayapotamon Pretzmann, 1966 (Decapoda, Brachyura: Potamidae: Potaminae) from Uttarakhand, northern India

Zootaxa ◽  
2017 ◽  
Vol 4237 (1) ◽  
pp. 191 ◽  
Author(s):  
S.K. PATI ◽  
S. SINGH
Keyword(s):  
New Species ◽  
Distal Portion ◽  
Identification Key ◽  
Freshwater Crab ◽  
Northern India ◽  
A New Species

A new species of potamid freshwater crab, Himalayapotamon garhwalense n. sp., is described from a stream near Khanda in Pauri Garhwal district of Uttarakhand, India. The new species is differentiated from all congeners by a suite of carapace and gonopod features, including the short, stout and conical G1 terminal joint with gradually tapered distal portion. Himalayapotamon Pretzmann, 1966, is now represented by 11 species including H. garhwalense n. sp. An identification key to the species in the genus is provided. 

Himalayapotamon chambaensis, a new species of freshwater crab (Crustacea: Brachyura: Potamidae) from Himachal Pradesh, India

Zootaxa ◽  
2017 ◽  
Vol 4324 (3) ◽  
pp. 482
Author(s):  
SANTANU MITRA ◽  
KANDASAMY VALARMATHI
Keyword(s):  
New Species ◽  
Distal Segment ◽  
Terminal Segment ◽  
Himachal Pradesh ◽  
Identification Key ◽  
Freshwater Crab ◽  
Northern India ◽  
A New Species

A new species of freshwater crab of the genus Himalayapotamon Pretzmann, 1966, is described based on specimens collected from various localities in Chamba District in Himachal Pradesh state, northern India. Himalayapotamon chambaensis n. sp. can be distinguished from congeners by several carapace and gonopod characters: a short median longitudinal granular ridge behind the frontal margin which reaches to the epigastric regions, the terminal segment of the male first gonopod is long and distinctly bent outwards, and the male second gonopod has a long and distally coiled distal segment. An identification key to all the 12 species in the genus is provided. 

A new species of freshwater crab of the genus Teretamon Yeo & Ng, 2007 (Decapoda, Brachyura, Potamidae) from southwestern Yunnan, China

Crustaceana ◽  
2021 ◽  
Vol 94 (9) ◽  
pp. 1059-1070
Author(s):  
Da Pan ◽  
Boyang Shi ◽  
Hongying Sun
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
Morphological Characters ◽  
Terminal Segment ◽  
Identification Key ◽  
Freshwater Crab ◽  
A New Species

Abstract A new species of freshwater crab of the genus Teretamon Yeo & Ng, 2007, Teretamon husicum sp. nov., is described here from Husa Town, Longchuan County, Dehong Prefecture, Yunnan Province, China. Teretamon husicum sp. nov. can be distinguished from other species by a suite of morphological characters, including a bilobed frontal margin, smooth posterolateral regions, and a broadly rounded dorsal flap on the G1 terminal segment. An updated identification key for the species of the genus Teretamon is provided.

scholarly journals On a new species of freshwater crab, Indochinamon khinpyae, from northern Myanmar (Crustacea, Brachyura, Potamidae)

ZooKeys ◽  
2018 ◽  
Vol 811 ◽  
pp. 47-63
Author(s):  
Peter K. L. Ng ◽  
Win Mar
Keyword(s):  
New Species ◽  
Freshwater Crab ◽  
A New Species

A new species of freshwater crab of the genusIndochinamonYeo & Ng, 2007 (family Potamidae), is described from highlands north of Myitkyina in Kachin State, Myanmar.Indochinamonkhinpyaesp. n.is distinguished from congeners by its very rugose carapace, broad male pleon and distinctively structured male first gonopod; and is the first potamid species recorded from northern Myanmar.

Achnanthidium palmeti (Bacillariophyta, Achnanthidiaceae), a new freshwater species from Réunion Island 

Phytotaxa ◽  
2013 ◽  
Vol 119 (1) ◽  
pp. 21 ◽  
Author(s):  
GILLES GASSIOLE ◽  
RENÉ LE COHU ◽  
MICHEL COSTE
Keyword(s):  
New Species ◽  
Recent Survey ◽  
Running Waters ◽  
Freshwater Species ◽  
Reunion Island ◽  
Epilithic Diatoms ◽  
Réunion Island ◽  
A New Species ◽  
Circumneutral Ph

Recent survey of the epilithic diatoms in the running waters of Réunion Island led to the discovery of a new species of Achnanthidium. Achnanthidium palmeti sp. nov. belongs to the group of Achnanthidium taxa with terminal raphe fissures curved to the same side of the valve. The new species differs from other taxa in this group by a higher stria density and the areolae morphology along the axial area; moreover, apart from Achnanthidium latecephalum H. Kobayasi, A. palmeti sp. nov. is the only species having raphe vestiges. The new species was found in oligotrophic waters with very low conductivity and circumneutral pH. 

Hydrothelphusa vencesi, a new species of freshwater crab  (Brachyura: Potamoidea: Potamonautidae) from southeastern Madagascar

Zootaxa ◽  
2007 ◽  
Vol 1524 (1) ◽  
pp. 61-68 ◽  
Author(s):  
NEIL CUMBERLIDGE ◽  
SASKIA A.E. MARIJNISSEN ◽  
JONELLE THOMPSON
Keyword(s):  
New Species ◽  
Freshwater Crab ◽  
Forested Region ◽  
A New Species ◽  
Southeastern Madagascar

A new species of freshwater crab of the genus Hydrothelphusa A Milne-Edwards, 1872, is described based on specimens collected from a forested region of southeastern Madagascar. Hydrothelphusa vencesi n. sp. is clearly distinguished from its congeners by its distinctive first gonopod (G1) with a terminal article that is in the form of a long straight-sided cone, and by a dorsal membrane at the segment junction of G1 that is broad and diamond-shaped. A key is provided to separate the five species of Hydrothelphusa.

scholarly journals A new species of freshwater crab of the genus Allacanthos Smalley, 1964 (Crustacea, Decapoda, Pseudothelphusidae) from southern Costa Rica, Central America

Zootaxa ◽  
2010 ◽  
Vol 2604 (1) ◽  
pp. 52 ◽  
Author(s):  
CÉLIO MAGALHÃES ◽  
LUIS RÓLIER LARA ◽  
INGO S. WEHRTMANN
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Central America ◽  
Lateral Lobe ◽  
Distal Portion ◽  
Freshwater Crab ◽  
Marginal Process ◽  
Distal Border ◽  
A New Species

A new species of pseudothelphusid crab, Allacanthos yawi n. sp., from the Río Volcán drainage, Puntarenas Province, southern Costa Rica, Central America, is described and illustrated. This is the second species to be assigned to the genus Allacanthos Smalley, 1964. The new species is distinguished by its congener by having a first gonopod with a mesiolaterally flattened distal portion, a concave and nearly smooth subdistal portion of the lateral and cephalic sides, a narrow marginal process with a nearly straight distal border, and a lateral lobe with a sharp tip on the apex. An amended diagnosis for Allacanthos is provided.

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