38 
ZOOLOGICAL LITERATURE. 
losing their capitular articulation, and only uniting with the transverse pro- 
cesses of the vertebrae by the tubercle. Anterior (2-6) cervical, in most, 
ankylosed together. Pterygoid bones short, thin, involuted to form, with a 
process of the palatine bone, the outer wall of the postpalatine air-sinus. 
Numerous teeth in both jaws {Monodon excepted), sometimes deciduous. 
Symphysis of mandible short or moderate, never exceeding one-third the 
length of the ramus. Bones of the skull not raised into a distinct crest 
behind the anterior nares. Orbit of moderate size. Lachrymal bones not 
distinct from the jugal. Pectoral limbs varying much in form and size. 
Dorsal fin usually present. 
Subfam. 1. Belugince, with Monodon and Beluga. 
^^Wam. 2. DelphinirKB. 
\ Prof. Lilljeborg, in his memoir quoted above, p. 10, cha- 
racterizes the groups and genera of the Whalebone-Whales, 
shortly reviewing the species known at present. He does not 
acknowledge Gray's genera Benedenia and Cuvierius, but pro- 
poses a generic division, Flowerius, for Sibbaldius borealis (Gray) . 
[This species being the type of Sibbaldius (Gray), Flowerius is 
synonymous with, and equivalent to, Sibbaldius (Gray) sensu 
strictiori ; whilst Sibbaldius (Lilljeb.) is identical with RudoU 
phius (Gray).] 
4 Prof. Burmeister's observations with regard to the ejection 
of water from the blowholes by Whales lead to the same result 
as those of Prof, von Baer (see Zool. Record, i. p. 32). The 
Dolphins, in which the blowhole is provided with a valve, are 
prevented by this structure from driving out air or water. 
Zeitschr. ges. Ntrwiss. xxix. p. 405. 
We mention here that Mr.(3oPE has published a synopsis of the 
extinct Cetacea of the United States in Proc. Ac. Nat. Sc. Philad. 
1867, pp. 144-155. 
A Hunterius svedenhorgiif sp. n., Lilljeborg, 1. c. pis. 0-11, a subfossil species 
discovered about 80 miles from tbe coast, iu West Gothland, 800 feet above 
the level of the sea. 
•AProf. Lilljeborg (/. c.) thinks that Malm’s Balcmoptei'a carolince is a PAy- 
salm antiquorum. [Before a meeting of the Zoological Society of London 
(1868), Mr. Flower expressed it as his opinion that it is identical with Ou~ 
vierius sibhaldii.'] 
k Physahis patachonicus. Notes on the example in the Buenos Ayres Mu- 
seum, by Burmeister, Zeitschr. ges. Ntrwiss. xxix. p. 8. 
Balcenoptera, A short note, by Mr. Flower, on the rudimentary pelvis 
and imossified femur, in Bull. Acad. Sc., Lett. etc. Belg. 1866, xxi. p. 131. 
4 Balcenoptera {Eschrichtius) robusta (Lilljeb.). Prof. Lilljeborg (/. c.) gives 
a detailed description of this apparently extinct whale. The bones are 
figured on pis. 1-8. 
Balcenoptet'a rostrata. Dr. A. Carte and Dr. A. Macalister have read before 
the Royal Society a paper on the anatomy of this Cetacean. An abstract of 
it appeared in Proc. Roy. Soc. 1867, xvi. pp. 64, 66. 
•^Balcenoptera bonaerensis, sp. n., Burmeister, Proc. Zool. Soc. 1867, pp. 707- 
718, from Buenos Ayres. 
