Why in the News
According to The Times of India (28 April 2026), ZSI researchers have recorded the pebble crab Lyphira ngankee in Indian waters for the first time. The samples were found at the Bahbalpur fishing harbour in Odisha's Balasore district. This species was earlier known from the South China Sea.
Lyphira ngankee
First record in Indian waters (not a new species)
Type locality
Nan'ao Island, Guangdong, China
In India
Bahbalpur, Balasore, Odisha
Diagram: an original table.
What Does the Research Paper Say?
The research paper's title is "First report of the leucosiid crab Lyphira ngankee Rahayu and Ng, 2024 (Crustacea: Brachyura: Leucosiidae) in Indian waters". According to the abstract, one male and three female samples were found as trawler bycatch at the Bahbalpur fishing harbour in Odisha, their likely source being the Bay of Bengal.
According to the abstract, this is the first record after the species' description and a significant range extension from the South China Sea to the eastern Indian Ocean. According to the paper's introduction section, leucosiid crabs are called nut or pebble crabs because of their pebble-like shape, and they live on sandy-muddy coastal floors; the samples were collected in November 2023.
According to The Times of India, this work was done by ZSI researchers, and citing co-author Chitrika De it writes that this report is "the first report of the species outside the type locality". According to the report, the researchers called for further study of the species' ecology and biology.
Where Does the Confusion Arise in the Exam?
The difference between a "first record" and a "new species" is the main confusion: the species was scientifically described from China in 2024, and it was recorded in India for the first time in the 2026 report. "Extension from the South China Sea to the eastern Indian Ocean" is the abstract's claim. ZSI's name and the point about "further study" are from the press. The samples were found in 2023 and the report was published in 2026; statements with such time gaps can be asked in the exam.
The Direction of Preparation from Past Questions:
The official UPSC Prelims 2023 General Studies Paper-I included statement-based questions. So prepare the species, the place and the basis of identification separately. The questions below are original practice, not actual PYQs.
Prelims style: practice questions
1. Based on the abstract of the research paper on Lyphira ngankee, consider the following statements:
1. This is the first record of this species in Indian waters.
2. Its type locality is China's Nan'ao Island.
3. According to the abstract, it was described in 2026 as a species new to science.
How many of the statements above are correct?
(a) Only one
(b) Only two
(c) All three
(d) None
See answer and reason
Answer: (b) Only two. Statements 1 and 2 are in the abstract. The species was described by Rahayu and Ng in 2024; this is a "first record", not a new species.
2. According to the abstract, where were the Indian samples of Lyphira ngankee found?
(a) As trawler bycatch at the Bahbalpur fishing harbour in Odisha
(b) From Chilika Lake
(c) From the Andaman Sea
(d) From the Sundarbans delta
See answer and reason
Answer: (a). The abstract states Bahbalpur (Odisha) and the likely source as the Bay of Bengal.
3. Which of the following points is from the research paper's abstract, not from the press?
(a) This is the first record of the species since its description and a range extension from the South China Sea to the eastern Indian Ocean
(b) This work was done by ZSI researchers
(c) Further study is needed on the species' ecology
(d) The species was earlier known only from the South China Sea
See answer and reason
Answer: (a). (b) and (c) are in The Times of India; (d) is also a press formulation.
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