The Annals and magazine of natural history; zoology, botany, and geology . forms, closely resembling each other, haveoriginated separately at the extreme limits of the area occupiedby the genus. With regard to the Ennea^ I have very little doubt of itshaving been transported. Many of the cultivated plants ofthe West Indies must have been introduced by the Spaniardsand Portuguese, some of them, in all probability, direct fromIndia; and the date of the introduction may thus have beensufficiently distant to allow of a considerable amount of disper-sion amongst the various islands. On a new and gi
The Annals and magazine of natural history; zoology, botany, and geology . forms, closely resembling each other, haveoriginated separately at the extreme limits of the area occupiedby the genus. With regard to the Ennea^ I have very little doubt of itshaving been transported. Many of the cultivated plants ofthe West Indies must have been introduced by the Spaniardsand Portuguese, some of them, in all probability, direct fromIndia; and the date of the introduction may thus have beensufficiently distant to allow of a considerable amount of disper-sion amongst the various islands. On a new and gigantic Fossil SjJecies o/ Ecliidna. 113 XIX.— On the Discovery of a new and gigantic Fossil Spe-cies of Echidna in Australia. By GtERAED Krefft, Cu-rator and Secretary of the Australian Museum, Sydney. To the Editors of the Annals and Magazine of Natural History. Gentlemen, In cataloguing the rich collection of Australian fossil remainsin the Museum at Sydney, I observed, among other novelties,a fragment of the humerus of a gigantic Echidna (much larger Fig. Fig. 1. Fragment of humerus of a fossil Echidna^ view from above. Fig. 2. Ditto, front view. Fig. 3. Ditto, back view. Fig. 4. Part of humerus oi Echidna hi/striv, corresponding to fig. 1. Fig. 5. Ditto, back view, corresponding to fig. 3. Fig. 6. Humerus of Echidna ht/strix. 114 Prof. W. Thomson on the Vitreous SjJonges. than the corresponding bone in any living Monotreme), whereofI beg to enclose drawings; the bone is seen from three dif-ferent points of view,—to which are added sketches of the samepart of an Echidna Jiystrix slightly enlarged. They may befigured, however, of the same size as the sketch, because Ihave before me the articulated skeleton of an Echidna in whichthe humerus is fully as large. The fragment in the possessionof the trustees of this Institution is a portion of the distal partof this bone; the articulating surface, which fits into the sig-moid cavity of the ulna, is perfect; and, fro
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