Stenorhynchus leptonyx (Sea-leopard), Abbott, P. Z. S. 1868, pp. 192 & 527.
Inhab. Falkland Islands (Abbott, Lecomte).
This Seal appears to extend from the Antarctic seas to New Zealand, the shores of New South Wales, and the Falkland Islands.
2. Lower jaw moderate. The three front upper and first front lower grinders single-rooted; the rest two-routed.
9. LOBODON.
Lobodon, Gray, Cat. Seals & Whales, p. 8; Gill, l. c. p. 10.
3. Lower jaw very weak. Front grinder in each jaw single-rooted; the rest two-rooted.
10. LEPTONYX.
Leptonyx, Gray, Cat. S. & W. p. 11; Gill, l. c. p. 10.