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THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIC, 
For a comparison of the proportions of the vertebra there are unfortunately 
no data of importance. The European skeletons of which measurements are avail- 
able are all adult, while the Massachusetts skeleton is quite young. I have, how- 
ever, assembled a number of measurements in the following table, both of the 
vertebre and of other parts of the skeleton : 
BALAENOPTERA ACUTO-ROSTRATA LAC. EUROPEAN AND AMERICAN. SKELETON. 
z 
eS 
. g g = 
2 3 sleet | oe eealeaeme 
a ¢ D~ =] : cole a 
ge | i eS: 3 a 3 Ge 
sen |e @| Sos 4 Ae | SS 4 
= a = + Pl sey Chicas u - 
Sia] & Ss Az en -A|H & i 
A ® 5 oo = ob 130 = ° 
[ea] H AS 2 . in oO eT al: 
fell Ges Grol ee OA Ge Sie ro Rael ai) 
620 i) a 3 s - acy z ae 
2 Oe o-: ose Paes ea £ “bo mee BH 
Bheae Boo DA th a Sic |) sea a2 
aise, | Ese | Os or Sas | Hod | SS 
omnS |] One |] ape Zw BOS, || VRS. | TS 
Sex jan Gva genet a.ae tray ewisetee sitet chery ) axel. Wy AXGhs hesosac ad. re 2) fie jr. 
Total Vengthrofwhalee.m.as.. eee ee Pe Nae eee aes Sees lio Seal Beacon ie Tiga wri Were co 
a ; Saskeletony-cys «sees cece BAveae Waatore lls nee 17 yer |etaeeac 16’ 54” 
Meneth of skullestraightseseaeeee eke ae fe || 3? \\Ga.5°> || Gog? || ARB" 37 4350 
% % & % % & % 
Greatest breadth) axisi me cesmcr eine Avo || Ane? i AOE | BLO Il cao os Prono |) erie) 
Depth centrum, Ps caatete meteraohe uate Poel) | pape eyetaielll eer cuenl| crores BiB Man sie oeoicell Noeeyaete 6.3 
Greatestibreadth ars tyclonsallier-yeerwerteceal eters sister |ieroneietcioal ners eae XO WA|lrcnomisce \Potin bc 22.4 
DIN Cem, —"  Lonanccgone eA) ll aveyelsrareh|etapecsieee Or ll enkeiets stile oie 6.3 
Greatestibreadthamstilumib annie ral ersens aie ieteroioncen neiare ete AlAs. 1 ||| Seietete 2 39.2 37.0 
Depth centrum, “ Ee ae SEO OAT Seen Wee tite || orcceeor Hebe lhave cotta alec Fes 
Greatest breadth, rst caudal.......... CYC Wes Baie Ilo o.cide DAH lin asses cane |licra ote 8 25.3 
Depth centrum, “ ee Ke cowaarce TOIO! Miceseree alleen Os5e | Musceacus, | rocrees 8.7 
Greatest length stennumern-ciereaerere ste 27.9 22.3 22.8 FANE) \Van sone \loovcos 14.4 
“ce “ 
breadth eer) ) Fence saneteraterc 12.9 15.4 mae 12:8 (rae aborep| xatedacns 10.3 
. ae - 
5 scapula dale sraverare pave ae 42.9 40.8 37.6 FO | soooes 31.8 33.9 
depth, © awl eie es dees 22.9 23.1 22.4 BESS ||| Sebo or 20.3 20.7 
Tb aaa Oil TENE SL nosdsaapeonsashoue 26.4 24.6 iP) PHL || APG) 23.0 25.3 
SO SCM ULNA. ratio steeco ke Le ee beoe 215 Fe tei|| sissies 24.4 Pai ha alee 19.6 23.6 
In the foregoing table it will be seen that on account of difference of age only 
Carte and Macalister’s specimen is comparable with the Massachusetts skeleton. 
Of the former, the measurements which can be used are, unfortunately, very few, 
and these few do not all show agreement. The most notable discrepancy is in the 
length of the radius and ulna, Carte and Macalister do not explain whether the 
* Condylo-premaxillary. * Posterior median. 
* Atlas = 19.2 %. 
“To condyles. 
“Swedish measure. 
* Atlas = 18.7 4. 
In straight line. 
* Anterior. 
*With proximal epiphysis. 
* Atlas. 
