Nounstickleback (Gasterosteidae spp.)

NounRyukyu spiny rat (Tokudaia osimensis)

Noun, Noun which may take the genitive case particle 'no'spiny ray (of a fin)

Nounacanthodians (extinct jawed fishes)

Nounspinous process

Nouninfraspinatus muscle

Nounhelmet crab (Telmessus acutidens)

Nounflat rock crab (Percnon planissimum)

Nounechinoderm

Nounthreadfin butterflyfish (Chaetodon auriga)

Nounsand sifting starfish (Astropecten polyacanthus); comb star

Nounridge-tailed monitor (Varanus acanthurus); spiny-tailed monitor

NounEchinodermata (phylum of marine invertebrates)

Nounthorn; spine; prickle · splinter (esp. lodged in one's flesh); hard sharp item (esp. lodged in one's throat, e.g. fish bone) · biting words

I-adjective (keiyoushi)sharp (words); harsh (manner, tone, etc.); hostile (mood, attitude, etc.); cutting (remarks); barbed; stinging · spiky; prickly; jagged; biting (e.g. wind)

Nounthorny shrub · wild rose; briar · thorn