1865.] DR. H. BURMEISTER ON A NEW WHALE. 195 
indicated in your synopsis as Balenoptera australis, Desmoulins 
(Voy. Ereb. and Terror, Mamm. p. 20); but as I have never seen 
that animal, I am unable to speak concerning its external appearance. 
Therefore I believe it is better to describe the species in question 
under a new name, and I propose to you, if you please to accept it, 
that of Balenoptera patachonica. 
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Scapula. 
** Since I have received the excellent books you sent me, and for 
which I give you my best thanks, I have found in them figures of the 
two skulls of Dolphins in the Buenos Ayres Museum. The larger 
is your Delphinus eurynome (p. 38, pl. 17), and the smaller your 
Delphinus microps (p. 72, pl. 25). Both are inhabitants of the 
Atlantic in our latitude. The new Phocena is wanting in your 
list. I propose to give the name Phocena spinipinnis to it, from the 
numerous spines on the dorsal fin. We have the entire animal, with 
the skull, which I will examine when it is taken from the dry skin 
in which it is enclosed. By the next French steamer I will send you 
an accurate drawing and complete description of it.” 
** P.S.—I have told you nothing of the under jaw of Balenoptera 
patachonica, because the surface of the bone is much destroyed by 
long exposure to the air, rain, and sun; but the hinder part, with 
the coronoid process, is represented in fig. 11.” 
Fig. 11. 
