Essentially in fresh (occasionally brackish) waters. [details]
Monaco and Mizelle (1955) proposed three species from Ptychocheilus oregonensis taken in British Columbia: D. ... [details]
Monaco and Mizelle (1955) proposed three species from Ptychocheilus oregonensis taken in British Columbia: D. ... [details]
Monaco and Mizelle (1955) proposed three species from Ptychocheilus oregonensis taken in British Columbia: D. ... [details]