Redescription of Sartoriana trilobata (Alcock, 1909) (Crustacea: Decapoda: Brachyura: Gecarcinucidae) from Assam, Northeast India, with notes on the morphology of male gonopods

Zootaxa ◽  
2021 ◽  
Vol 5026 (1) ◽  
pp. 136-144
Author(s):  
AWARLIN CHETIA ◽  
SANTANU MITRA ◽  
DEBANGSHU NARAYAN DAS
Keyword(s):  
Northeast India ◽  
Morphological Features ◽  
Freshwater Crab ◽  
Riverine Wetland ◽  
Wetland Habitats

Sartoriana trilobata is a species of freshwater crab which occurs exclusively in some areas of Northeast India. Being a riverine crab, it is occasionally found in beels or other riverine wetland habitats formed by monsoon floods in the Brahmaputra basin.The earlier descriptions of this species were mostly incomplete which lacked information on the morphology of the male gonopods.Therefore including the male gonopods, all the morphological features of Sartoriana trilobata are redescribed and illustrated. This species differs considerably from its only congener i.e., Sartoriana spinigera through suits of carapace, chelipeds, gonopods dissimilarities.  

The identity of the freshwater crab Indochinamon manipurense (Alcock, 1909), with description of a new species of Potamiscus Alcock, 1909, from Manipur State, India (Decapoda, Brachyura, Potamidae)

Crustaceana ◽  
2020 ◽  
Vol 93 (7) ◽  
pp. 703-725
Author(s):  
Sameer K. Pati ◽  
Santanu Mitra ◽  
Peter K. L. Ng
Keyword(s):  
New Species ◽  
Distal Segment ◽  
Northeast India ◽  
Terminal Segment ◽  
The State ◽  
Freshwater Crab ◽  
Type Specimens ◽  
A New Species

Abstract The identity of the potamid freshwater crab, Indochinamon manipurense (Alcock, 1909) from the state of Manipur in northeast India, is clarified based on an examination of the type specimens. The species is redescribed and a lectotype designated. Specimens from the same region previously referred to this species were compared to the types of I. manipurense and shown to belong to a new species of Potamiscus Alcock, 1909, instead. The new species, Potamiscus takedai sp. nov., can easily be separated from I. manipurense by the characters in the carapace, third maxilliped, male pleon, male gonopods, and female vulvae. Potamiscus takedai sp. nov. can be differentiated from congeners mainly by the strongly bent terminal segment of the male first gonopod and a relatively shorter distal segment of the male second gonopod.

A new aerophilic species of the genus Diploneis (Bacillariophyta) from the Mawsmai cave of Meghalaya, Northeast India

Phytotaxa ◽  
2020 ◽  
Vol 443 (1) ◽  
pp. 67-78
Author(s):  
CHINTAN BHATT ◽  
BALASUBRAMANIAN KARTHICK
Keyword(s):  
Internal Structure ◽  
Central Area ◽  
Northeast India ◽  
Morphological Features ◽  
Electron Microscopic ◽  
Scanning Electron Microscopic ◽  
Scanning Electron

A new aerophilic species, Diploneis mawsmaii sp. nov., is here described from a speleo-environment. The species is found on mosses growing under the water dripping region of Mawsmai cave, Meghalaya state of India. It is discussed based on detailed light and scanning electron microscopic observations and compared with morphologically similar Diploneis species like D. modica Hustedt, D. modicahassiaca Lange-Bertalot & A. Fuhrmann, D. boldtiana Cleve and D. zula Kulikovskiy & Lange Bertalot. Diploneis mawsmaii possesses distinct morphological features such as a largely expanded central area bearing a prominent circular to oval central nodule and the internal structure exhibiting short striation with acute ends and the flattening of longitudinal canals at the central area. This discovery increases our understanding of cavern biodiversity in the Indo-Burma hotspot region.

5. Management of Riverine Wetland Habitats

2004 ◽  
pp. 87-104
Author(s):  
Robert C. Ehrhart ◽  
Paul L. Hansen
Keyword(s):  
Riverine Wetland ◽  
Wetland Habitats

scholarly journals Population density of sitatunga in riverine wetland habitats

2020 ◽  
Vol 24 ◽  
pp. e01212
Author(s):  
Camille H. Warbington ◽  
Mark S. Boyce
Keyword(s):  
Population Density ◽  
Riverine Wetland ◽  
Wetland Habitats

Associations between salinity and use of non-riverine wetland habitats by diurnal birds

2009 ◽  
Vol 109 (3) ◽  
pp. 252-259 ◽  
Author(s):  
Michael J. Smith ◽  
Michael P. Scroggie ◽  
E. Sabine G. Schreiber ◽  
Ed McNabb ◽  
Garry Cheers ◽  
...  
Keyword(s):  
Riverine Wetland ◽  
Wetland Habitats

Montmorillonite Dendrites

1974 ◽  
Vol 32 ◽  
pp. 454-455
Author(s):  
Necip Güven ◽  
Rodney W. Pease
Keyword(s):  
Crystal Growth ◽  
Growth Mechanism ◽  
Growth Front ◽  
Morphological Features ◽  
Dendritic Crystal ◽  
Crystal Growth Mechanism

Morphological features of montmorillonite aggregates in a large number of samples suggest that they may be formed by a dendritic crystal growth mechanism (i.e., tree-like growth by branching of a growth front).

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