নিচলা মাছ

Etymology
Probably from with Assamese. Perhaps gone through metathesis in Early Assamese from to. Compare 🇨🇬,, 🇨🇬.

Or from

Noun

 * 1) shrimp
 * 2) prawn
 * 3) krill
 * 1) krill

Classifier
Male = -টো, female = -জনী.