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REINHARDT ON 
like the Kiel dolphin, had ten teeth on either side of the lower jaw, of which, however, the two 
hindmost ones were placed in a common socket, this, however, bearing traces not to be mistaken 
of having originally consisted of two, now united into one. In the upper jaw, on the contrary, 
there are only eight teeth on either side, or two fewer than the Middelfart specimen; 
in the Refsnaes dolphin, finally, of which all the teeth, except one or two, were present, and still 
fixed in their sockets, when it was disinterred from where it was buried, the number of the 
teeth, both in the upper and in the lower jaw, was quite the same as in the Asnaes dolphin, but 
the hindmost tooth in the upper jaw was lodged here in its own socket, perfectly well separated 
from the last but one. In the Refsnaes dolphin the teeth were but little worn, 1 and, more 
especially, the teeth of the left side were a little less worn than those of the right side ; the teeth 
of the Asnaes dolphin must, to judge from those very few of which I obtained possession, have 
been worn a good deal more, especially the foremost ones in the jaw; yet the wear is not 
greater, than will show perfectly clearly, that this dolphin keeps its teeth until the last period of 
its life. We have hitherto only mentioned those teeth which are fixed into distinct sockets; but 
besides these, one or even two teeth are sometimes, at least, to be found quite anteriorly on either 
side of the upper jaw; for these no sockets are to be found, and they can therefore only be 
fixed in the gums. I have not seen these teeth myself (which have been observed neither in the 
Middelfart dolphin, nor in the Refsnaes specimen), but I am indebted for my knowledge of them 
to the kind information of Professor Behn, who told me in a letter that during the 
preparation of the cranium of the Kiel dolphin, two small teeth were found lodged in the 
gum; he did not see them himself, until after they had been taken out, but the preparer stated 
that he had found them in the upper jaw, and as to this point, at least, he can hardly 
have been mistaken; but whether they were placed one on either side, or both on the 
same side, Professor Behn found it impossible to ascertain. From the appearance of the 
teeth, however, he thinks himself enabled to conclude, that two such diminutive teeth must, 
originally, at least, have been found on either side; for though there is no great difference in 
their length, yet the one is so much thicker than the other, that it weighs three times as much 
as the latter (the greater one twelve, the smaller one four grains); thus, it does not seem very 
probable that they formed a pair, and if this supposition is correct, the original number of 
teeth in the upper jaw of the Kiel dolphin must have been twelve in either side; it may, how¬ 
ever, be doubtful whether these teeth are always to be found, and I feel especially inclined 
to believe that they were not present in the Refsnaes dolphin. 
In order to render my description of the cranium more complete, I shall here add several 
measurements of the three skulls at my disposal; to make the comparison with Delphinus 
griseus easier, I have chosen chiefly to give the same dimensions that Cuvier has given of the 
cranium of this animal in his ‘ Ilecherches sur les Ossemens Fossiles,’ and finally, I have in a 
fourth column added those measurements which Owen has given of his Phocana crassidens, 
reduced into Danish inches and lines. 2 
1 All the crowns of the teeth of the Middelfart dolphin having been broken off, one or two 
excepted, before the skeleton arrived at this town, it cannot be ascertained, whether its teeth have been 
much worn or not; though judging from the few uninjured teeth, we should say that the wear has not 
been much greater in this specimen than it was in the one from Refsnaes. 
As to these measurements it must, however, be observed that they do not quite agree with those 
given by J. E. Gray, though it is the same cranium that has been measured by both the English 
