Complex sentence: He is remembered for his extensive research of crustaceans, particularly Epicaridea (parasitic isopods) and members of the family Bopyridae, and in 1877 he was the first scientist to describe the phylum Orthonectida (parasites of Ophiurida).
Split into simpler sentences: He is remembered for his extensive research of crustaceans, particularly Epicaridea (parasitic isopods) and members of the family Bopyridae. In 1877 he was the first scientist to describe the phylum Orthonectida (parasites of Ophiurida).