MAMMALIA. 
49 
Haloinoptcra syncondyhis, sp. n., Aug. Muller, Scliriffc. Pliys.-okon. Gesellsch. 
Konigsberg, iv. p. 38, from the Baltic j described from an incomplete skull. 
Occipital condyles united. 
Plerohalmia rostrata (Fabr.). Prof, van Beneden has observed hairs in 
the lips of a foetus. Bull. Acad. Sc. Belg. 1866, xx. p. 852. He adds some 
observations on the parturition of the same species and of Glohiceps. 
4 Catodon JcreffUi, sp. n., Gray, Proc. Zool. Soc. 1865, p. 439, from the 
Australian Seas. This Sperm-Whale is known from the ceiwical vertebrae 
only, which are figured. Dr. Gray considers it to be the type of a distinct 
subgenus, Meganmron, the atlas being subcircular, but little broader than 
high, with the central canal circular in the middle of the body and widened 
above ; whilst in the typical Catodon the atlas is nearly twice as broad as high, 
with the central canal subtrigonal, and narrow below. 
Dr. Gray expresses his opinion (Proc. Zool. Soc. 1865, p. 529) 
that the Physeters should be separated from the Catodontes 
into a separate family, Physeterid(By with the three genera Kogia 
(Gray), Euphysetes (MacLeay), (Gray). This family 
would be characterized thus : — 
Head of an oblong rounded form ; blowers on the hinder part of the crown ; 
mouth small, narrow, inferior ; dorsal fin elevated, pectoral ovate. The con- 
cavity on the crown divided by a more or less central bony ridge into two 
cells (this part being simple in the Catodontes). 
■'\Physeter macrocephalus. Dr. Murie describes and figures some cases of 
crooked lower jaw in this species ; this deformity does not appear to be of rare 
Occurrence, The author is inclined to regard it as the result of periosteitis 
during the growth of the animals. Proc. Zool. Soc. 1866, p. 390. 
-1 [Kogia~\ Euphysetes macleayiiy sp. n., KrefFt, Proc. Zool. Soc. 1866, p. 708, 
with woodcuts; from New South Wales. Scarcely’’ distinct from Physeter 
breviceps (Blainv.). 
Delphmorhynchus australis, an sp. n., P = P. micropterus (Dumort.), Bur- 
meister, Zeitschr. gesammt. Ntrwiss. xxvi. 1866, p. 262, from Buenos Ayres. 
'^Eelphinus. Three new species are described by Dr. Gray, Proc. Zool. Soc. 
1866, viz. jD. moorii, p. 736, caught in lat. 34° S., long. 7° 3' W. ; D. waU 
heri, p. 737, from lat. 36° 38' S., long. 10' E. ; Clymene punctata, p. 738, from 
lat. 16° 40' N., long. 21° W. 
^ Mr. Cope, Proc. Acad. Nat. Sc. Philad. 1866, has given notes on skulls of 
Delphinus doris, D. clynwne, and D. styx on p. 201, of D. delphis, var., on p. 203, 
and of Z>. delpTiis and Steno frontatus on p. 204. The author describes two 
new species from skulls, viz. Z>. asthe7iop)s, p. 201, and D. crotaphisctis, p. 203 ; 
habitat unknown. A- third new species, probably from the Atlantic coasts 
of the United States, is named by him D. erchennus, p. 281 ; formerly, p. 199, 
he referred the skeleton, on which the species is founded, to E. tursio, compa- 
ring it with other Dolphins known to him. > 
'^Lagetiorhynclmis ohliquidens, sp. n., Gill, Proc. Acad. Nat. Sc. Philad. 1866, 
p. 177, from San Francisco. 
Lagenorhynchus leucopleurus (Gray). Measurements of a cranium by Mr. 
Cope, in Proc. Acad. Nat. Sc. Philad. 1866, p. 199. 
1865. [voL. II.] 
