21-70 mm long, 2-6 mm wide
Collum and margin of second pleurotergite end at the same level, margin of collum angles caudad to the caudolateral corner; second ring not produced below the corners of the collum
Western and southwestern US: California, Nevada, Utah, New Mexico, Arizona, Texas
Known to stay underground for long periods of time, not coming to the surface until after rains
Shelley, R.M. & Hoffman, R. L. 1995. Anelus richardsoni (Pocock), a Gulf coastal milliped of the United States and Mexico (Spirobolida: Allopocockiidae). Myriapodologica. 3(12): 107-114.