The body and wings of the bird are frequently omitted, then the neck disappears; in some examples only the eye and hooked beak persist (Fig. [42], B, D), and in one or two examples known to me the eye alone remains of the vanished bird.
The eye of the crocodile may develop into a grooved sigmoid curve, or degenerate into a simple loop. One or both jaws may terminate in a loop; the teeth are more often absent than present; in one spatula they occur on the tongue only (Fig. [42], C). The tongue usually reaches the bird, but it may be quite short; though generally straight, it may be carved and may terminate in a small bird’s head; indeed, either jaw may occasionally have a similar termination. For a selection of characteristic modifications of this motive I would refer the reader to Plate XII. of my Memoir, from which I have borrowed the examples seen in Fig. [42]. Of these A is a conventional but readily recognisable representation of both the bird and the crocodile; B, C, D are varieties which present no difficulty of interpretation, and E is a slightly carved handle of a paddle in which the design is very greatly simplified.
The decorative art of the outlying Trobriands (Kiriwina) and Woodlark (Murua) Groups appears to differ in many respects from that which is characteristic of the other groups of this district; this is especially noticeable in the lime-gourds, and on the oval-painted shields.
The north-east coast of British New Guinea is now being opened up by the Administrator, Sir William MacGregor, but as yet no specimens of its decorative art have found their way to British museums.
VI.—Relation of the Decorative Art to the Ethnology of British New Guinea.
A general survey of the decorative art of British New Guinea clearly reveals the fact that there are distinct æsthetic schools, if the term may be permitted, in each of which there is a characteristic set of motives and also of forms and technique. The boundaries of these districts are not sharply defined, but, although our knowledge is still imperfect, they can in most cases be traced with sufficient exactitude. I expect that the Papuan Gulf district will be found to extend from the Fly River to Cape Possession (long. 146° 25´ E.), and that the Fly River district proper must be confined to what I have termed its Middle Region, and perhaps the upper reaches of that river as well.
We may then take these five districts for granted. The question now presents itself: What is the meaning of their distinctness? I do not think we have at present sufficient evidence to enable us to do more than make suggestions as to possible causes, and naturally ethnology is first appealed to. Are these differences due to ethnic diversity?
Many of those who have written on the natives of British New Guinea have not sufficiently distinguished between the numerous tribes in our Possession, and they speak in vague terms of the Papuans as if they were all alike. Now this is by no means the case, and before we can gain an adequate comprehension of Papuan ethnography and ethnology we must clearly distinguish between the characteristics of the various tribes, their customs, languages, and handicrafts.