Taxa named by John A. Ryder

Symphylans, also known as garden centipedes or pseudocentipedes, are soil-dwelling arthropods of the class Symphyla in the subphylum Myriapoda. Symphylans resemble centipedes but are very small, non-venomous, and may or may not form a clade with centipedes. More than 200 species are known worldwide.

Nemichthys is a genus of eels in the snipe-eel family Nemichthyidae. It currently contains the following species:

species of fish

Labichthys is a genus of eels in the snipe-eel family Nemichthyidae. It currently contains the following species:

Eurypauropodidae is a family of pauropods in the order Tetramerocerata. Pauropods in this family are found on all continents except South America and Antarctica. This family includes more than 70 species distributed among four genera.

eel in the family Nemichthyidae

Scutigerella is a genus of symphylans in the family Scutigerellidae. This group includes at least 35 species and is the second-largest genus in this family. This genus has a subcosmopolitan distribution. This genus was first proposed in 1882 by the American zoologist John A. Ryder, who also designated S. immaculata as the type species.