Dr. J. E. Gray on Zipliioid Whales. 19 



I also observe that Duvemoy gave the name of " Hyperoodon 

 QervaisiV and Fischer's '■'' ZipMus OervaisiV to the skull 

 in the Paris Museum', from the H^rault, which I proposed, in 

 the 'Annals,' 1872, x. p. 469, should be called Epiodon 

 Heraidtii^ but which I gladly change to that of Epiodon Ger- 

 vaisii. I see Professor Flower erroneously refers to ' Ost^ogr. 

 Cet.' t. 21. f. 1-6 for this specimen ; it should be f. 1-4. 



Mr. KrefFt, some time ago, sent me a photograph of the 

 skeleton of a ziphioid whale which is in the Museum of 

 Sydney, and was obtained from an animal stranded in Little 

 Bay, about six miles from Sydney, which he marked as 

 Mesoplodon longh-ostrisj Krefft. It appears to be, from the 

 scale appended, 18 feet long. The angle and symphysis of 

 the lower jaw appears to be rather elongate and attenuated in 

 front ; and the beak is about twice and a half the length of the 

 brain-cavity, measuring from the notch ; and the head is one 

 fifth of the entire length. The photograph does not show any 

 teeth ; and the skull resembles that of the figure of Berardms 

 Hectori ; but the beak is rather longer in proportion to the size 

 of the head. 



In the ' Annals and Magazine of Natural History, 1871,' vii. 

 p. 368, 1 published a note which I had received and the figure 

 from the photograph of a tooth which Mr. Krefi't sent to me, 

 as " the photograph of the tooth of a new whale, 18 feet long, 

 caught in Little Bay. It is allied to the genus Mesoplodon ; 

 and I propose to call it Mesoplodon Guntheri.^'' He says, 

 " We have the entire skeleton ; " so that there can be no doubt 

 of its being the same as the one he named, but did not describe 

 or publish, as Mesoplodon longirostrisj which Professor Flower 

 thinks is closely allied to, if not identical with, Ziphius Lay- 

 ardi. The form and sm'face of the tooth which is figured 

 from Mr. Krefi't' s photograph appeared to me so unlike that 

 of any other ziphioid whale known that I regarded it as in- 

 dicating a new genus, which I proposed to call Callidon. 



Dr. Krefi't explains that the tooth is not visible from with- 

 out ; it is imbedded in the mandible, and the tip is bent 

 towards the margin. It is as unlike the strap-shaped tooth of 

 Zipihius Layardi as it is possible to be ; and as longirostris has 

 not been published, I propose to call it Callidon Gilntheri. 



The skeleton seems, from the photograph, to be one of the 

 most perfect known. 



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