On two subfossil Whales discovered in Sweden. 



19 



is wiewed from behind (fig. 7) the articular surface for articulation with the 

 epistrophaeus appears almost in the form of a horse-shoe and undivided. It 

 does not extend so high up as the fossae condyloideae and is at the middle 

 of the side parts a little convex. Dimensions of atlas: Breadth between the 

 extremities of the processus transversi 1' 5y'; length or thickness of the 

 sideparts (partes laterales) 3-f-"; length of processus transversi 3 ;/ ; height 

 of the same 4| /; ; height of atlas 12-f-". It is a sensible defect in our de- 

 scription of this skeleton that the epistrophaeus could not be included in it. 



The 3 rd cervical vertebra, viewed from behind, (PI. II. fig. 8) l ) is 

 distinguished by the strong developement of the lower branch of the lateral 

 processes (parapophysis), which is much larger than the upper (diapophysis) 

 and which, together with the latter, is inclined slightly backward. The 

 corpus is concave behind and convex is front, and of an almost rectangular 

 form, with the corners rounded off, and with a notch in the upper back 

 border continued a little way downward iallow furrow. In the midst 



of the corpus is a low, blunt, longitudinal ridge. The arcus has a very 

 small processus spinosus, but is distinguished by its considerable height, 

 which is probably greater than in any otlier Balaenopteride, whence it ap- 

 pears that the height of the foramen spinale is nearly equal to its trans- 

 versal measure 2 ). The processus obliqui anteriores (Zygapophyses) are less 

 than the posferiores, but nevertheless distinct. The latter have tolerably 

 large concave articular surfaces. Both the upper and under branches of the 

 lateral processes, but especially the latter, arc directed upwards, and the 

 former have the point divided, or running out into an upper and lower pro- 

 cess, of which the lower is directed to the upturned point of the lower 

 branch, and the inconsiderable distance between them has probably been 

 filled with cartilage. The corroded edges of these points show that they 

 have been longer, and therefore the distance between them less, when they 

 were entire; but it is evident that the lateral processes neither of this nor 

 of the succeeding vertebrae have been annular. The upper branches have 

 at the base of the anterior side a projecting keel or crista. The lower, 

 larger branches are bent upwards, uneven at the lower border, at the hinder 

 part of the base they are provided with a little projecting border, are thin 

 and compressed at the points, are also there higher than on the other parts , 



') We assume this on the ground of the uniform agreement of other Balconop- 

 teridae in the size and direction of the lateral processes. 



2 ) Gray considers the form of the foramen spinale as especially distinguishing 

 this whale. 



