THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIO. 205 
and behind is a narrow, and rather irregularly cylindrical prolongation. (See pl. 27, 
fig. 6 and text fig. 63.) 
Bambeke figures a quite similar sternum belonging to the skeleton in the 
Museum at Gand, which he describes as shaped like “a nail, with a conical head ” 
(1, 61). Carte and Macalister’s figure of the sternum of the Drogheda, Ireland, 
FIG. 57. Fic. 58. FIG. 59. 
Fic. 60, Fic. 61. Fic. 62. Fic. 63. 
EY 
Fic. 64. 
Fic. 66. 
BALA{NOPTERA ACUTO-ROSTRATA LAC. EUROPEAN AND AMERICAN. STERNUM. 
Fic. 57.—Norway. Ap. (FRoM GERVAIS.) Fic. 58.—CROMER, ENG. AD. §. (FROM FLoweER.) Fic. 59.— 
BOULOGNE, FRANCE. AD.? (FROM FISCHER.) Fic. 60.—NoRwaAy. AbD. (FRoM PHOTO.) Fic. 61.—NoRWAyY ? 
(From ESCHRICHT.) FIG, 62,—GREENLAND. IM.? (FROM ESCHRICHT.) FIG. 63.—HARWIcHPoRT, Mass, Im. 
(FRoM A PHOTO.) Fic. 64.—BeLGIUM. JR. (FROM VAN BAMBEKE.) FIG. 65.—DROGHEDA, IRELAND. JR. &. 
(FRoM CARTE AND MACALISTER.) FIG, 66.—BRETAGNE, FRANCE. JR. (FROM GRATIOLET.) 
specimen (14, pl. 6, fig. 1) shows it to be elongated heart-shape, with a posterior 
prolongation. ‘This form is totally unlike that of any other specimen of the species 
hitherto figured, except the Bretagne specimen cited by Fischer (44, 87, pl. 3, fig. 
1). In the latter the sternum consists of an oblong ossified central portion sur- 
rounded by a somewhat cruciform cartilaginous portion. The osseous part bears a 
resemblance to the sternum of the Drogheda specimen. (See text figs. 57-66.) 
