34 Prot. 
XVII I. PROTOZOA. 
Trichoclina patella:, in the gills of Patella vulgata , p. 82, fig. 1, Cuenot, 
Rev. biol. Nord France, iv, n. sp. 
Vorticella vaga , Jena, RC^mer, p. 465, Biol. Centralbl. xiii, u. sp. 
Class 6. — ACINETARIA. 
Acineta simplex , Plon, Holstein, Zacharias, p. 17, Forschungsberichte, 
Plon, i, n. sp. 
^ Pericometes , n. g., with P. digitatus , n. sp., in branchiae of Gammarus , 
p. 19, pis. vii & viii ; Schneider, Tabl. zool. ii. 
Trichophrya cordiformis , u. sp., Sciiewiakoef, Bull. Mosc. 1893, No. 1, 
p. 8, pi. i, figg. 13-16. Parasitic on Gyclops phalevatus, Koch. 
