BEIJING, September 8, 2016: An examination of the ornamental fish market in southern China has led to the discovery of a new species and even a new genus of freshwater crab, researchers have reported.
Knowing about the growing demand for eye-catching freshwater crabs from southern China, the authors took a look at the ornamental fish market to eventually identify an individual with unusually structured male gonopod, which in crustaceans is a swimming appendage modified to serve as a reproductive organ.
O hi there i am a new genus and species of crab found in a pet market
Having their interest drawn by the peculiar crab, study leads author Chao Huang from Sun Yat-sen University in China managed to persuade the fish dealer to let them survey the collection site located in Guangdong, southern China.
Despite the superficial resemblance to an already existing freshwater crab genus, at second glance, the crab turned out to be quite distinct thanks to a unique set of features including the carapace, the monopod and the relatively long and slender legs.
Once the molecular analyses’ results were also in, the authors had enough evidence to assign the freshwater crab as a species and even a genus new to science.
Being a primarily aquatic species, the new crab prefers the pools of limestone hill streams, therefore its name Yuebeipotamon calciatile, where calciatile means ‘living on limestone’.
To adapt to the habitat, the species seems to have developed its characteristic slender legs, which make it easier for the crab to climb and move around whenever the short-lived limestone hill streams make it search for a new home, the researchers reported in the journal ZooKeys.
The carapace of the new crab is usually coloured in maroon to dark brown, while the claws and legs are reddish to purplish, the study said. (IANS)
Asima Chatterjee was an organic chemist noted for her work in organic chemistry and phytomedicine. She also authored a considerable volume of work on medicinal plants, also she was the first woman to receive a Doctorate of Science from an Indian university. On 23rd September 2017 (her 100th birth anniversary), Google honoured her with a Google doodle.
Here are 11 facts about Asima Chatterjee you must know:
1. Chatterjee’s research primarily focused on the medicinal properties of Indian plants and contributed to developing drugs that treated epilepsy and malaria.
2. One of her most esteemed discoveries came in the field of vinca alkaloids which are used in chemotherapy today.
3. Her achievements won her many prestigious accolades including received the Shanti Swarup Bhatnagar Award (1961) and the Padma Bhushan (1975) – one of the highest civilian awards bestowed by the Indian government.
4. In 1944, she was appointed as an Honorary Lecturer in Chemistry, Calcutta University. In 1947, she worked with L.M. Parks University of Wisconsin, USA.
5. She was appointed Reader in the Department of Pure Chemistry, Calcutta University in 1954. It also became her permanent address until her death.
6. In 1962, she became the 10 Khaira Professor of Chemistry, one of the most prestigious and coveted Chairs of the Calcutta University which she adorned till 1982 and was the first woman scientist to adorn a chair of any
University in India.
7. In 1975, she became the first woman to be appointed the general president of the Indian Science Congress.
8. She also established a Regional Research Institute for carrying out research on Indian medicinal plants for the development of Ayurvedic drugs along with an Ayurvedic Hospital for systematic clinical trials through a unique Centre-State collaboration, under the aegis of the Central Council for Research in Ayurveda and Siddha in Salt Lake City, Kolkata.
9. She developed the anti-epileptic drug, Ayush-56 from Marsilia minuta, also the anti-malarial drug from Alstonia scholaris, Swrrtia chirata, Picrorphiza kurroa and Ceasalpinna crista. These patented drugs have been marketed by several companies.
10. Chatterjee has published 400 papers in national and international journals. Her publications are extensively cited and most of her work is included in several textbooks.
11. It is said that she developed interest in medicinal plants because of her father, Dr. Indra Narayan Mukherjee, a medical man cum amateur.