
Herchellii—
| (a.) |
Eleven feet long. Stuffed. Table Bay. Purchased of Mr. Smuts. Type of the species. |
| (b.) |
Head (thirty-seven inches long). |
| (c.) |
Anterior portion of a skull of a specimen of the same size. |

Gladius—
| (a.) |
Eight feet long. Stuffed. Indian Ocean. Type of species. |
| (b.) |
Seven feet long. Stuffed. Cape of Good Hope. |
| (c.) |
Dorsal fin. New South Wales (?). Presented by Dr. G. Bennett. |
| (d.) |
Snout. Dried. |
In quoting the numerous authorities describing the species, Dr. Günther, amongst others, includes:—Penn., British Zool., iii., p. 216, pl. 30; Knox, Edin. Journal; Nat. and Geo. Society, ii., p. 427.
Thus the material for scientific observation in the British Museum is extremely limited, with regard to the Xiphiidœ. I may here remark, that in my brother's (the late Professor Robert Knox) description, the comparative anatomy would, to a certainty, be given; and if so, I would have thought Dr. Günther would have availed himself of it.

