402 MR. Ww. H. FLOWER ON THE SKELETONS OF WHALES [Nov. §, 
gG\S gel eae 
eBs| 553/098 
S82 /e82\ee2 
| N A 
| | 
| Length of skull in straight line............-.ee cesses 116 | 79 | 80 | 
(Breadth of condylesm. J fa.n acer omwicieeins eaitiets tes 103| 10 9 
(Breadthot exovcipitalsiver sfasipelsy. 2 sits lelotelevals|a' lip cette 415) 260 2275) 
Breadth of squamosals (greatest breadth of skull) ........ 57 | 40 | 38 
| benpthion supraoccipitallons dsaae emia cem ae acai laine 292} 214] 21 
| Length of articular process of squamosal .............. 22 | 15 | 16 
| Orbital process of frontal, length ......-+.0eeceeeeeeeee 22 | 138 | 18 
Orbital process of frontal, breadth at base ........-..... 242) 16 15 
Orbital process of frontal, breadth at outer end.......... Ps ral rat 
UNpusalls plier pt pete te etepencdetebe ela oteeacioiesgeiete ale eit iays pscicier oe 103; 63) 62) 
Nasals, breadth of the two, at posterior end ............ 2 | 241i 8 | 
Nasals, breadth of the two, at anterior end...........+.5 6 | 4 4 
Length of beak, from middle of curved border of maxil- || 95 53 | 50 
lary to the tip of premaxillary .........4-+.+.+.5-. her] 
Teena cfm ama llarys vale fs a ethic leo <cejnisis «nie woh daie)oirtorniaiaroyele 90 | 57 | 55 
| Projection of premaxillary beyond maxillary ............ 6 5 3 
| Greatest width of nasal aperture ...........++005- sievenrts| LO) 63 
Breadth of maxillaries at posterior end .......-..- meaveteha,| Oamiaal 9 8 
Breadth of maxillaries across orbital processes (follow-| | g3 | 43 43 
Mri Odi ONCHING) ateetb eiciellayale's las (a) ois /zVeIvieta's slave 49504] 
Breadth of beak at base (following the curve) ..........| 42 | 380 | 30 
Breadth of beak at middle (following the curve) ........ 224! 16 | 15 
Breadth of maxillary at same point........+.+eeereeeee 6 4 4 
Breadth of premaxillary at same point «..ssseeeeeeeeee 4 3 22 
Length of lower jaw in a straight line ........-++eeeeeee 117 | 784| 76 
Height at coronoid process ...+.eeeeeeeeese ee eeeeeees ee heme) 9 
Height at middle .....,....eeeeesec re eesercessecees 93; 74 
FAMMOUNE OL COLVE® seo one's wnwiriele raisin ah ne suisse misisis 84|/ 6 6 
The atlas presents the characteristic features of this bone in other 
meinbers of the genus in a very marked degree. The transverse 
process is particularly deep from above downwards, and much twisted. 
The spinal canal is contracted in the middle; the articular surfaces 
for the axis are not confluent at their lower margins, but between 
them is a distinct, oval, transversely elongated facet, and another 
smaller round one is situated on the upper surface of a pointed 
triangular projection from the hinder border of the inferior surface 
of the bone, which runs under the body of the axis. There are thus 
four distinct articular surfaces in connexion with the second vertebra. 
The extreme width of the bone is 163"; the length of the inferior 
surface of the body 4''-4 including the triangular process, which is 1!""5. 
The other dimensions are shown in the sketches (figs. 10 and 11). 
The axis (fig. 12) has the usual form of this bone in the Fin- 
Whales. The odontoid process is represented by a slight rounded 
elevation, with a depression in the centre ; and besides the two large 
lateral articular surfaces for the atlas, there are two small median 
facets, one on the lower part of the anterior and one on the inferior 
* Greatest distance of the inner surface of the jaw from a straight line drawn 
between the extremities. 
