1. The term “pseudo‑melanistic” is biologically wrong
Melanism is a real
phenotype, not a “false” one.
The prefix pseudo‑ implies:
- fake
- incomplete
- misleading
- not a true phenotype
My 1999 model given for
Panthera tigris and all subsequent field evidence shows that:
- Melanistic tigers are
genuine phenotypes
- They do not arise
because of repeated mutations
- They arise from real
genetic variation
- They fit into Types
12–14 of my 14‑colour model
- They are part of the natural
segregation spectrum of Panthera tigris
Thus, “pseudo‑melanistic” is
scientifically indefensible.
2. The term originated in July 2021 and spread
without scrutiny
- The term first appeared
in Sagar et al. 2021 (PNAS).
- It was not used
in any tiger literature before 2021.
- It was not used
in my 1999 model, nor in any Indian field reports from 1988–2020.
- It spread rapidly
through:
- media
- forest officers
- social media
- popular science
outlets
This created terminological
confusion for five years (2021–2026).
3. The PNAS Editors themselves corrected the issue
in April 2026
My communication with PNAS
resulted in:
- A formal editorial
clarification (2 April 2026)
- A request to the 2021
authors to submit corrections
- Acknowledgement that
the term “pseudo‑melanistic” should not be used for Similipal
tigers
This is a major scientific
correction — and it validates our position from 1999.
4. The wrongly used "pseudo" term contradicts my 14‑colour model (1999),
which is the correct framework
My model already includes:
- Melanistic
- Black
- Brown‑phase
- Rufous
- Pallid
- White variants
- Ghost‑pattern
- Pattern‑dominant
- Pattern‑reduced
There is no place for
“pseudo‑melanistic” because:
- It is not a phenotype
- It is not a genetic
category
- It is not a colour
expression
- It is not a pattern
category
It is simply wrong
terminology.
5. The term caused real‑world damage
Because of the PNAS paper:
- Media began calling
Similipal tigers “pseudo‑melanistic”
- Forest officers
repeated the term in reports
- Photographers and
tourists adopted it
- Even some scientific
articles may have copied it without checking
This undermined:
- My 1999 model
- My 1988–1998 field
documentation
- the correct terminology
used for 30+ years
My intervention was
necessary and scientifically justified.
Final Opinion (for publication or official use)
