L. stygia Clamp, 1990

Lagenophrys labiata Jakschik 1967a: 24 .

Circolagenophrys stygia Jankowski 1993: 221 .

Museum Depositions. USNM. 42306 Holotype; 42307, 42308 Paratypes.

Habitat. Subterranean.

Distribution. BR: Nearctic.

USA: Illinois, Champaign Co. 1 mi. S Sellers, drainage tile (40°10'14.77"N, 88°6'13.33"W); Christian Co., 4.0 mi. E Taylorville, Spring Cr. (39°33'7.43"N, 88°34'19.65"W); Vermilion Co., 1.5 mi. N Fithian, tributary of Stony Cr. (40° 7'51.57"N, 87°52'22.73"W).

Hosts. USA: Bactrurus mucronatus (Forbes) (gills).

References. Clamp 1984, 1990a; Fernandez-Leborans & Tato-Porto 2000.