| There are several descriptions of the anatomy of Orthragoriscus mola L., but no authors except Van Dobben (1935) have given a functional treatise concerning the mechanism of the jaw. Unfortunately the fish described by Van Dobben seems to have been abnormal. The description which follows is based on anatomical study of two sunfishes which stranded on the Dutch coast and were placed at our disposal by the Rijksmuseum van Natuurlijke Historie, Leiden. Specimen A, a female, stranded December 10, 1935 near Burgh, in the neighbourhood of Haamstede, on the Isle of Schouwen. It has been used for a cast in the Leiden Museum and was dissected by Dr N. Tinbergen and J. J. ter Pelkwijk December 13 and 14, 1935 at the Zoological Laboratory at Leiden. Specimen B, a... |
