PankER.— Notes on Baleenoptera museulus ? 
b 
eorrespondence in the proportions of the various parts of the skeleton, 
between the present specimen, and acknowledged examples of Balenoptera 
musculus (==Physalus antiquorum). 
The Skull. 
Length in a straight line «s vs 
Breadth at the squamosals (nts breadth of ska y, "e 
f condyle 
Mt of ixdsipituld +s vs A SM Ps vs 
Length of supra-occipital . és ae s. ve 
» Of orbital process of trontal e "m bie as 
Breadth of  ,, 2: = , at base .. e Vv 
^a $» „at outer end .. »* 
PERE dad ial iy «s s dd se 
Breadth of both nasals, shales ad RE ss os as 
anteri 
Length of sk re Jane of ied Adde ‘of 
nterior 
premaxilla ka n Tx <a es 
Length of maxilla .. am "> a 
Projeetion of premaxilla beyond udis. : e e «e 
Greatest width of nasal apertures.. a e ^ 
Breadth of both maxille at posterior ed 
, across orbital process (avin the an ot 
bk at base, following the curve .. a 
» middle EET oe ee ee 
maxilla at same eink m E me ys 
” premaxilla ” , ee ee 
Length of mandible in a straight line .. is A F 
Height of 
dioit of curve of mandible, i.e., poen dipun 
i at coronoid process .. vs oe 
za at middle 
from a straight line between the ends rs E abs 
Length of jugal in a straight line.. da i. T s 
Width of jugai at anteriorend  .. Ee i ee - 
73 pos sterior , 5,5 LE oe ee ee ee 
narrowest point xs ws 
ices of curve of jugal (measured as for mandible) ve a 
Length of lacrymal in a straight line .. a. .. ae 
Greatest breadth of lacrymal - ee oe T ee 
Length of tympanic ee oe m ee as ee 
Breadth 
Thickness 
» including external process .. dx ae 
” oe oe -^ es oe ae .. 
” eo ee oe oe oe oe oe 
The Hyoid Bone. 
Extreme width in a straight line .. we m 
Length of p from posterior edge to ss of a cleft "n 
» extremity of anterior corner or 
MA for aiae ai of vololod is "e ee 
Breadth of body, about — .. T zm + oe es 
oe 
of inner i silane 
Inches, 
148 
