First three images are of a single species and the second two are another species.
Unfortunately, in none of the photographs all characters are visible that are important for identification. Especially, the tails are missing in all specimens/photographs.
1-3: Probably Himantura gerrardi (Gray 1851) (family Dasyatidae) – tail missing
4-5: No identification possible – important characters are not visible
Where were they caught? Do you mean the first three images are the same specimen? Or do you have five specimens and two species?
It is certainly not Raja inornata; that species is restricted to the eastern Pacific, while the specimens on the photographs are obviously from India.
thank you for your reply. Sorry that i don't have anymore detailed photographs to send
top 3 are most likely Himantura granulata and bottom 2 images are Dasyatis microps
I agree with Will, the first image is H. granulata, you can see from the snout shape and white flecks on the dorsal surface. The last image is D. microps based on the size of pelvic fins and broad fin base.
For first species, I agree with Dr. White and [Fahmi] Fahmi. I found same specimen in the Oman Sea (with white flecks and thorns on the dorsal surface) (attached file), but important note for me is missing the tails in both specimens and other previous report.
Hi Alireza, That image you attached looks like it is Urogymnus asperrimus. Has no tail spines and thorns over all of disc. closely related to H. granulata and should be in same genus
- Badges
- Science topic
- Similar topics
- Biological Science
- Zoology
- Ichthyology