Carcinoscorpius rotundicauda
Scientific Name: Carcinoscorpius rotundicauda, English Name: Mangrove Horseshoe Crab, Sundarban Mangrove Horseshoe Crab., Local Name: Raj Kakra (রাজ কাঁকড়া), Sagar Kakra (সাগর কাঁকড়া).; Family: Limulidae
Tachypleus gigas
Scientific Name: Tachypleus gigas, English Name: Southeast Asian horseshoe crab, Local Name: Kakra (কাঁকড়া); Family: Limulidae
Coenobita violascens
Scientific Name: Coenobita violascens, English Name: Hermit crabs, Local Name: Not Known; Family: Coenobitidae
Clibanarius clibanarius
Scientific Name: Clibanarius clibanarius, English Name: Hermit crabs, Local Name: Not Known; Family: Diogenidae
Diogenes rectimanus
Scientific Name: Diogenes rectimanus, English Name: Hermit crabs, Local Name: Not Known; Family: Diogenidae
Clibanarius padavensis
Scientific Name: Clibanarius padavensis, English Name: Hermit crabs, Local Name: Not Known; Family: Diogenidae
Clibanarius infraspinatus
Scientific Name: Clibanarius infraspinatus, English Name: Orange-striped hermit crab, Local Name: Not Known; Family: Diogenidae
Parapagurus nudus
Scientific Name: Parapagurus nudus, English Name: Deep-water Hermit Crab., Local Name: Hermit Crab (হার্মিট ক্র্যাব); Family: Parapaguridae
Clibanarius longitarsus
Scientific Name: Clibanarius longitarsus, English Name: Blue-stripped Hermit Crab., Local Name: Kakra (কাঁকড়া); Family: Diogenidae
Pagurus bernhardus
Scientific Name: Pagurus bernhardus, English Name: Common Hermit Crab, Solider Crab, Bernard’s Hermit Carb., Local Name: Shamuk Kakra (শামুক কাঁকড়া); Family: Paguridae