Marine Invertebrate in a Spiny Shell
This page is the CodyCross answer for the clue below from Deserts of the world, Group 1611, Puzzle 1 (Horned Viper).
Question is: Marine Invertebrate in a Spiny Shell
and the answer is: SEAURCHIN
Word Meaning:
SEA URCHIN — Any of many marine echinoderms, of the class Echinoidea, commonly found in shallow water, having a complex chewing structure named Aristotle's lantern.
Definitions from Wiktionary.