Type: Specimen No. 3061-2, Peter Redpath Museum, McGill University.
Horizon and locality: Coal formation at the South Joggins, Nova Scotia.
This animal is known only by portions of bones of the head and a few other fragments. The scattered bones of the extremities are inseparable from those of H. lyelli occurring with it. As compared with that species, the bones of this are smoother and more delicate. The teeth are more numerous and slender. The crushed distal end of a femur or humerus found near the skull indicates that the limbs were well developed.
| mm. | |
| Length of mandible | 11 |
| length of skull | 15 |
| Length of femur | 9 |
| Teeth, 5 to 6 in 1 mm. |
Hylonomus wymani Dawson.
Dawson, Quart. Jour. Geol. Soc. London, XVI, p. 277, figs. 27-29, 1860.
Dawson, Air-breathers of the Coal Period, p. 52, 1863.
Dawson, Phil. Trans. Roy. Soc. London, 1882, pt. II, p. 637, plate 39, figs. 15-17.
Dawson, Acadian Geology, 3d ed., p. 378.
Type: Specimen No. 3061, Peter Redpath Museum, McGill University. There is also specimen No. R 446 in the British Museum ([393, pt. IV, p. 224]).