Dr. J. E. Gray on Delphinus Catatonia. 389 



The two skulls slightly differ in shape and size. 



No. 1 is 1/ inches long ; the beak to the notch is 10 inches, and 

 the upper tooth-bone 8| inches long ; the front lower teeth are worn 

 away and truncated, like the teeth of the common Delphinus tursio, 

 which was described as D. brunatus by Montague. There are 

 twenty-seven teeth on each side in the upper, and twenty-five teeth 

 on each side in the lower jaw. 



No. 2 is 17 inches long ; the beak 9i, and the upper tooth-bone 

 8 inches long. The teeth twenty-four above (perhaps one on each 

 side is deficient, as the end of the jaw is very tender), twenty-three 

 or twenty-four below. The front lower teeth are slightly truncated ; 

 but this skull chiefly differs from No. 1 in being rather more convex 

 and rather narrower, especially in the hinder part, from the middle 

 of its length. 



I have compared these skulls with those of the different species of 

 Bottlenoses (Tursio) in the British Museum ; and they are perfectly 

 distinct from any of them. The species may be called Delphimis 

 Catalania. It is smaller in size, and has a much smaller brain- 

 cavity than D. Cymodoce (Gray, Zool. Erebus & Terror, t. 19) and D. 

 Metis (Gray, Zool. Erebus & Terror, t. 18) ; and the beak is not so 

 tapering as in these species, and the teeth are rather more numerous. 



It is equally distinct from Delphinus Eurynome (Gray, Zool. Erebus 

 & Terror, t. 1 7), believed to be from the North Sea. 



It is not easy to point out the distinction of these species in words , 

 but there cannot be a doubt about them when they are compared 

 together. 



i I may here observe that Delphinus Eutropia (Gray, Proc. Zool. 

 Soc. 1849, 1 ; Zool. Erebus & Terror, t. 34 ined.), which, in the 

 ' Catalogue of Cetacea ' in the British Museum, I have placed in the 

 first section of Tarsia, with D. tursio and the species above named, 

 should be formed into a section of itself, characterized by having a 

 very broad muzzle shelving on the sides, and the skull shelving down 

 over the orbits, and thirty-four or thirty-five slender teeth on each 

 side of each jaw. This section may be called Eutropia, 



Notice of a Wingless Bird, or Mono, and a Raven found 

 in the Island of Hawaii by Mr. \V. H. Pease. By Dr. 

 J. E. Gray, F.R.S., etc. 



In a note lately received from Mr. W. H. Pease, dated Honolulu, 

 Nov. 20, 1861, he observes, "I noticed in a late number of the 

 ' Annals of Natural History ' a description of a species of bird living 

 in our islands (which was figured many years since in Dixon's 

 ' Voyage'), by Mr. Gould ; he refers it to the genus ' Moho.' 



" Please inform him that there is a ivingless bird of small size 

 living in the island of Hawaii, which the natives call ' Moho,' which 

 is now nearly extinct, having been killed off by the wild cats and 

 dogs within late years ; I have seen but a single specimen. There 

 is also living there a species of Raven." 



