Philomycus bisdosus Branson, 1968
Philomycus virginicus, P. togatus .
External: Light tan body; 4 wavy brown longitudinal bands: two along mid-dorsum and a thinner band along each side; bands merge toward tail and break up into spots toward anterior; head white, tentacles blue-black; white body under mantle, with dark pigment towards tail; gray foot margins; light gray sole; white, sticky mucous (Branson 1968; Fairbanks 1989).
Internal: Long, thick vas deferens; long, moderately thin penis and thin retractor muscle; apex of penis slightly thinner than vas deferens; penis base 5x width of apex; sheath covers entire penis; vas deferens appears to enter and travel entire internal length of penis; muscular internal base of penis projects into atrium; round spermatheca, larger than dart sac; spermatheca with wide duct; spermatheca duct longer than and equal in width to oviduct; small dart sac; short vagina; atrium with glandular tissue surrounding it; (Branson 1968; Fairbanks 1989).
Juveniles: Darker brown and more spotted than adults; similar to P. virginicus (Branson 1968)
Similar to P. virginicus, but P. virginicus is darker, its stripes reach the mantle edge (Branson 1968), and it has a thinner vas deferens, thicker penis, stronger penial retractor muscle longer, wider dart sac, and larger vagina (Branson 1969). Similar to P. togatus, but P. togatus has an orange foot fringe, different penis, and a larger dart sac (Fairbanks 1989).
Contracted: 35.5 mm long; extended: 85.5 mm long, width 8.5 mm (Branson 1968); 40-55 mm long (Fairbanks 1989).
Found in Breaks Interstate Park, Virginia and Pike Co, Kentucky (USA) (Branson 1968).
Found to co-occur with P. carolinianus and P. togatus (Fairbanks 1989).
Takes shelter under moist, rotting logs (Branson 1968).