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North America: Atlantic drainages including the Elk, Susquehanna, Bush, Patapsco, Patuxent, Potomac, Nanticoke, James and Roanoke. 北美洲: 大西洋的流域包括麋鹿，撒斯寬赫那，布希， Patapsco ， Patuxent ，接臨美國首都 Washington 市的河名， Nanticoke ，詹姆士與 Roanoke。
大小 / 重量 / 年齡
成熟度: Lm? range ? - ? cm Max length : 6.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 37399)
背棘 (總數) : 5 - 9; 背的軟條 (總數) : 14 - 19; 臀棘: 0; 臀鰭軟條: 10 - 14. Two-spotted first dorsal fin; chin uniformly pigmented; dossal saddles moderate to wide; incomplete lateral line; preopercular spines slight to moderate, palatine teeth weak to moderate, and postpectoral prickling slight to moderate. Distinguished from C. b. bairdi by caudal base band unnotched in at least one side versus both sides notched. Palatine tooth patch moderately developed. Body shape (shape guide): fusiform / normal; Cross section: circular. 兩個斑點的第一背鰭; 下巴均勻地有顏色; 掛布鞍狀斑中等的到廣闊地; 不完全的側線; 前鰓蓋骨棘輕微的到中等的, 顎齒弱的到中等的, 與後胸的刺輕微的到中等的。 與 C. b 區分了。 尾部基底條紋的 bairdi 無V形凹痕的在至少一側邊和兩邊有凹槽的比較中。 上顎的齒列適度發展的。
Kinziger, A.P., R.L. Raesly and D.A. Neely, 2000. New species of Cottus (Teleostei: Cottidae) from the middle Atlantic eastern United States. Copeia 2000(4):1007-1018. (Ref. 37399)
