THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIC. 187 
BALABNOPTERA MUSCULUS (L.). EUROPEAN AND AMERICAN. SCAPULA. 
See 
Scapula. 
: 3 Total Length of 
Locality. Sex. Length. | Skeleton. Propertioa Author, 
Breadth. | Height. | of Height 
to Breadth. 
ftreeanis ft) in: in. in. % 
BION EI KG pees pOcuOS OCC COS ee a ie) Be 46 + | 35.5 21.0 60 Flower. 
BAEC (i862) Brerete ei stereeel sists creas CRIM coerchets fal (Oeics eros BS.25 ess 61.4 Miinter. 
North Berwick, Scotland...... 40) Sooooe 78 0 | 60 38 63.3 Knox. 
2 |Van Beneden 
7 } SUT LA Oagimalh sexe cee |} ant avetars 4.47 = 
Gothenburg, Sweden.......... : in 4 49 7 64.4 BRAG crvaie: 
Syali, CCUM toanoco a wo ooger g 5Omo: AGuOMs| lair 20 64.4 Mobius. 
Osienel, Lele, os an o005 cond S| “Serco ||| saeeon 69.3 42.1 60.0 Dubar. 
Balena Station, Newfoundland... | ...... ||...... 61 38.5 63.1 18s \iYe aN 
Ocean CityawN lpacairautere tt 2 COR asec. 49.5 30.0 60.6 TBS WW, 10s 
—_ 
FIG. 49. FIG. 50. 
BALAfNOPTERA MUSCULUS (L.). EUROPEAN. STERNUM. 
Fic. 49.—(STOCKHOLM MusEUM. FROM VAN BENEDEN.) Fic. 50.—OsTEND, BELGIUM. 9 AD. 
(FROM FISCHER.) (SEE P. 185, FOOT-NOTE.) 
RADIUS AND ULNA. 
The radius in the Sulphurbottom is remarkable for its breadth, and the ulna 
for its strong curvature. In Van Beneden and Gervais’s copy of Malm’s figure of the 
Gothenburg specimen (8, pl. 13, fig. 834) and in Dubar’s figure (34, pl. 11) the ulna 
is represented as having a long olecranon process directed downward instead of 
upward. If this were correct it would at once distinguish the European from the 
Newfoundland Sulphurbottom, which has an erect or proximally-directed olecra- 
non, as in B. physalus. It would appear that the process shown in the figures 
above mentioned is the cartilage attached to the olecranon, which may be ossified 
in such mature individuals as the Ostend specimen. Gervais’s figure of the South 
American Sulphurbottom represents the process correctly as cartilage (41, pl. 1, 
fig. 3). With the exception mentioned, the figures of the arm-bones of European 
Sulphurbottoms agree well with those of the Ocean City, N. J., and Newfoundland 
specimens shown in pl. 7, figs. 7—9. 
The following actual measurements of the arm-bones are given by various 
authors : 
* Rheinland measure. * From Van Beneden and Gervais’s copy of Malm’s figure. 
