78 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
. Table of dimensions. 
Millime- 
fans Inches 
Length of skull in straight line...--..--.-------------+ +--+ + eee eee eee eee eee eee 983 38. 70 
Greatest breadth). sca. 6 secccp Gece atacn ee ben ob ccene cane enlenadd sss eSnicn'desn-eanamem 600 23. 62 
Greatest height........-.-------- +--+ -- 2-02 eee ene ee een eens ween ee eee e ee eee 525 20. 67 
Length of beak from anterior maxillary notch to tip...-.-.---.-+--+-+-ee2--+-+-=- 485 19.10 
Length of premaxillaries .-..--.----------- ---220- 222s cere ee eee eee eee reese eee 835 32. 88 
Breadth of right premaxilla in front of TURTON Sele ee Meee ce cm hae 147 5.79 
Breadth of left premaxilla in front ofimares sO Lo oat ease sete 93 3.66 
Greatest length of right nasal. ........---..--:----ses----------- Ibe ceeeebcoes- 135 5. 32 
Greatest breadth of right Mpsal Ate. ee ass eee ae Ree a cee ema cia eee am ete amen 84 3.31 
Greatest length of left nasal. ........-----.--- Ee ig coer aSone oe acon See vas te 128 5. 04 
Greatest breadth of Jeti masalicss nes eee east ae nee oie ce ae meee ele mile == te ante 40 1.58 
Distance from tip of beak to anterior point of nasal roof.......-.--..-----.------- 690 27.17 
Greatest distance of premaxillary crests at fore border of nares.......-.---.----- 232 9.13 
Length of visible part of vomer ..--...----- -----. ee+-e+ +222 eee rennet cere eee eee 258 10. 16 
Length from anterior end of vomer to tip of [ae gate At Sar Bo Alea ada a 124 4. 88 
Greatest height of foramen Magnum... . 2... 2-2 ce ee eee near nnn e ween nen e es <== 62 2.44 
Greatest breadth of foramen STOR OTL alte le ete ete eee 56 2. 21 
Distance of condyles at upper edge of foramenimbpnumiy sha) pnecee = eee Sasee 95 8.74 
Closest approximation of condyles beneath foramen magnum .....-.---.-..---.-- 10 0. 39 
Teneth ofplower ij swisgess st tase cere - foee reser is ss eelat taal eeiabeep aaa este 845 33. 27 
Lower jaw beyond the tip of the upper one..---........-.-.--..-.--......-.------ 64 2. 52 
Length of sy mphy BIS nas dss HEE ee ced a Sa See SaaS SEE ae gaa dea ee et enea 180 7.09 
Height SE DPOSeGriOT NALIN OF SyTIpPH YSIS 0-5 Shee see cane ns tea Sane eee mer 66 2. 60 
Longitudinal dismeter.of tonth at base .h..2tu4 121-6 oboe dyiuc See kp cabelas 2 1.02 
Transverse diameter of tooth at base .....--.---22eeceneecceccecneccccccececeeares 20 0.79 
Heishtiof, tooth sees. sscsessee ee ss see = Seem seinem nk sels ol aemen tebe cam aera ete 36 1. 42 
It will be seen that the symphysis of the lower jaw is comparatively 
short, making only about one-fifth of the entire length of the jaw. 
The species occurs here on the island, and my specimen was obtained 
in the same way as the one previously mentioned. 
The natives employ the same names for both, considering them to be- 
long to the same kind. The same defect which makes the Berardius 
bairdii unfit for food for men and dogs is also ascribed to Grebnitzky’s 
Small-headed Whale. That these two whales should be confounded is 
not so strange, however, when we come to consider that the total length 
of the two animals, in spite of the much smaller skull of the latter, is 
nearly the same; for in the same manner as I judged the former to have 
a length of about 18 feet, I estimate the present old specimen to have 
been about 20 feet (64 meters) long, a length which the adult of Baird’s 
beaked whale will probably also reach. 
The most interesting objects in the natural history of these islands 
are unquestionably the remains of the extinct northern sea-cow (y- 
tina* gigas (Zimm.) 1780+ — Rhytina stelleri (Fischer) 1814, and at 
present the success of the collecting naturalist here depends more or 
less upon the harvest of bones of this animal which he may be able to 
send home. 
As to my own results in this respect, I shall give you a separate, de- ~ 
tailed report, from which you may learn the peculiar difficulties con- 
nected with this part of my operations, and the account of the “ cireum- 
*Tho original spelling of Jlliger, 1811. 
t Manati gigas Zimmerman, Geogr. Gesch. II (p.426). Besides, there are two other 
specific names older than Fischer’s stelleri, viz, 1785, Manati balenurus Boddaert, 
Elench. Anim. (p. 173), and, 1800, Trichechus borealis Shaw, Gen. Zool. I (p. 240). 
