On two subfossil Whales discovered in Sweden. 



29 



opening on the upper side of the corpus, at the outer side of the base of 

 a low elevation or tuber there situated, between which two tubera, in the 

 midst of the vertebras upper side, is a longitudinal narrow and deep fossa, 

 instead of a foramen spinale. In the 15 th , 10 th , 17 th , 19 th and 20 th they have 

 their upper opening in the corresponding place, but on the three last there is 

 an open channel connecting them; and they have their lower opening situated 

 in the same place as in the foregoing, in a common fossa. The 16 th and 

 17 th as well as the 19 th and 20 th have, when viewed from the fore end, 

 a subquadrangular form, with the corners rounded off. The 14 th and 15 th 

 are more decidedly rounded off at the upper part. In all the caudal verte- 

 brae the epiphyses are firmly attached. On the 15 th and 16 th the last traces 

 of the articular surfaces for the processus spinosi inferiores are yet visibles. 



Between the 17 th and the next of the discovered vertebrae there is 

 so great difference of dimensions, that it is evident, that there has been 

 an 18 th vertebra between them, which has not been found, and it appears 

 as if the three extreme caudal vertebrae were lost ; and it seems therefore 

 probable that the caudal vertebrae were in all 23, so that the whole number 

 of vertebrae, including the 7 cervical, the 15 dorsal and the 14 lumbosacral 

 vertebrae, was 59 or about 60. 



The 19 th and 20 th caudal vertebrae are in the middle of the ends, 

 especially on the anterior side, very deeply hollowed. 



Dimensions of these vertebrae: Length from the 11 th to the 17 th 

 caudal vertebra both inclusive 3' 3f-"; breadth of corpus, at anterior end, 

 of the 11 th 10; 3 -"; height of d:o lOf "; length of d.o 7-|". Breadth of corpus, 

 at anterior end, of the 12 th 10"; height of d:o 10f ; length of d:o 6}". 

 Breadth of corpus at anterior end of 13 th 9y"; height of d:o 10"; length of 

 d:o 5f". Breadth of corpus, at anterior end, of the 14 th 9"; height of d:o 9'; 

 length of d:o 4|". Breadth of corpus at d:o of the 15 th 7-f-"; height of d:o 

 7|"; length of d:o 3f . Breadth of corpus at d:o of the 16 th 4 - "; height of d:o 

 6{"; length of d:o 3™". Breadth of corpus at d:o of the 17 th 5-|"; height of d:o 

 5-f- ; length of d:o 3j". Breadth of corpus at d:o of the 19 th 3f"; height of 

 d:o 4"; length of d:o 2-f-". Breadth of corpus of the 20 th 3|"; height of 

 d:o 3f ; length of d:o 2f . 



Of the processus spinosi inferiores 4 have been found, of which the 

 three are here represented PI. VI igg. 44, 45, 46. The largest, fig. 44, 

 from the highest point to the lower border is 8", and its breadth at the 

 lower part 6y'. 



Estimating the length of the head from that of the under jawbone, 

 and the length of the lost vertebrae from that of those that have been found, 



