522 DR. J. E. GRAY ON CETACEA (June 27, 
6. Notices or A New Genus or De_pHinotD WHALES FROM 
THE Care or Goop Horr, AND OF OTHER CETACEANS FROM 
THE SAME Seas. By Dr. Jonn Epwarp Gray, F.R.S., 
V.P.Z.S., F.L.S. 
Mr. Layard has most kindly sent to me for examination and com- 
parison the skulls of the Cetacea which are contained in the South- 
African Museum, under his charge. A short notice of them, ex- 
tracted from a letter from him, was read at a former Meeting of the 
Society (see Proc. Zool. Soc. 1865, p. 357). 
As the specimens are to be returned to Africa, I intend to have a 
cast made of each of the skulls here described, as a well-made cast 
is the best substitute for a real skull that we can have for compa- 
rison. 
The collection consists of six skulls, which belong to the following 
species :— 
1. Delphinis doris, Gray, Zool. Erebus & Terror. 
2. Delphinus euphrosyne, Gray, Zool. Erebus & Terror. 
3. Steno frontatus, Gray, Zool. Erebus & Terror. 
4. The skull of a species of Steno with numerous small slender 
teeth, which appears to be distinct from any that I have before seen. 
It may be thus described :— 
STENO CAPENSIS. 
The beak of the skull elongate, rather compressed, tapering, and 
more compressed in front. Teeth a small, slender, about five 
in an inch. Lower jaw slender, attenuated, and without any gonyx 
in front ; the symphyses nearly one-fifth the length of the jaw. 
« Delphinus obscurus, Gray,” Cat. S. A. Museum. 
Hab. Cape of Good Hope ( Cap#. Carew, South-African Museum). 
Length of the skull 16, of beak from the notch 10, of the lower 
jaw 13, of symphyses 27 inches; width of the beak at the notch 33, 
of the brain-case at the hinder part of the orbit 62 inches. 
The skull is somewhat like that of Steno attenuatus in the British 
Museum ; but the beak of the skull is longer compared with the 
size of the brain-case, and it is more gradually attenuated and slender, 
and higher in front. 
5. Grampus richardsonii, Gray, Zool. Erebus & Terror; Cat. 
Cetacea Brit. Mus. 85. 
Hab. Cape Seas (South-African Museum). 
The skull resembles in most particulars that of Grampus cuvieri, 
and may be considered that of a typical species of the genus. It 
agrees with Beluga in the convexity of the triangle in front of the 
blowers, and in the general form; but it differs from that genus in 
the elevation of the margins of the maxillze over the orbits, and on 
the side of the hinder part of the beak in front of the notch, showing 
that the genus is intermediate in form between Beluga and Orca. 
