Melocactus bahiensis

Melocactus bahiensis (Britton & Rose) Luetzelb., Estud. Bot. Nordéste 3: 11 1923.;
 

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Third lot of cactii from Kalimpong
Appears like Melocactus bahiensis as per picture in ‘Tropical Garden Plants’ & as per links:
 

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Dattaji Salvi Udyan  Thane

Date: January 11, 2020 … Altitude: about 11 m (36 feet) asl

Melocactus bahiensis infrasp. bahiensis  
Many thanks to Abhay Pandhare for help with the ID … facebook.  
Is it possible to determine species with this image ?
Certainly not in my capacity, …!!!
Many thanks to Abhay Pandhare for help with the ID … facebook.
I talked to him later; he is a succulent plant lover, and he has quite a number of plants in his home garden. He knows (recognizes) his plants very well. He provided the ID as Melocactus acispinosus. I am sure this must be a popular cactus among hundreds or thousands of many others.
I checked across The Plants List, GBIF and found Melocactus acispinosus Buining & Brederoo as synonym of Melocactus bahiensis infrasp. bahiensis.

OK, …

References: