what does class Hyalospongiae mean?

CLASS HYALOSPONGIAE as NOUN

Meaning
- sponges with 6-rayed siliceous spicules
- choanocytes are restricted to finger-shaped chambers
Synonym(s)
- Hyalospongiae (what does Hyalospongiae mean?)
Hypernyms(s) class Hyalospongiae is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
- class (what does class mean?)