Orconectes propinquus was created in 1852.
Phreatogammarus propinquus was created in 1907.
Christine Brereton has written: 'Prediction of Crayfish (Cambarus bartoni, Cambarus robustus, Orconectes propinquus, and Orconectes virilis) presence in acid-sensitive, softwater lakes in and around Killarney Provincial Park'
Orconectes saxatilis was created in 1976.
Orconectes peruncus was created in 1931.
Orconectes menae was created in 1933.
Orconectes marchandi was created in 1948.
Orconectes immunis was created in 1870.
Orconectes maletae was created in 1972.
Orconectes hartfieldi was created in 1992.
Orconectes jeffersoni was created in 1944.
Orconectes stannardi was created in 1985.
Orconectes cooperi was created in 1980.