Question

Which of the following is an incorrect match?
A: Pheronema- Bowl sponge
B: Hyalonema- Glass rope sponge
C: Euspongia- Mermaids gloves
D: Cliona- Boring sponge

Answer 1

Members of the phylum Porifera are commonly known as sponges. These are called so because they have bodies full of pores and channels allowing water to circulate through them.

Complete answer: Pheronema is a bowl sponge. It is a siliceous leuconoid marine sponge. It is called so because its skeleton looks similar to a glass bowl. Hyalonema is a type of porifera having rough threads at the bottom with a long and twisted stem of a bundle of glass fibres which are used to anchor the sponge to the marshy sea bed on which it lives and it also has a long projection at the top. Glass rope-like appearance is because of such reasons, and hence the name. Euspongia is also known as a bath sponge found throughout the Mediterranean sea. It is a commercially used sponge. Cliona celata also known as boring Sponge, is a species of demosponge belonging to the family Clionaidae. This sponge creates round holes up to 5 mm in diameter in limestone or the shells of mollusks, especially oysters. Sponge Chalina oculata is commonly known as mermaids gloves because its branches resemble fingers and it is found 100 meter deep in the sea. It is yellow, orange or brown in colour.
Hence, the correct answer is option (C).

Note: For a particular sponge there is a common name on the basis of appearance, etc. Mermaids gloves is also a sponge but its scientific name is Chalina oculata. And euspongia is commonly known as bath sponge because of its texture consisting of wooly, sponge-like fibres, something like the sponges used for scrubbing while taking bath.