184 THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIO. 
BALZENOPTERA MUSCULUS (L.). NEW JERSEY AND ICELAND, SKULL. 
Measurement. |Ocean City, New Jersey. Iceland. 
Greatest: breadthy of iskulll yeu ealejetetteioi cielo wie ole elo eee 99.0 in. 103.5 in. 
Breadth of the maxille at the middle.................-. AS ae Bia} 
Length of the rostrum without premaxille............. mel | nigtoLin 
Breadth of distal end of frontal over the orbit (greatest). | iesh(o) | pels 
The principal cranial characters of B. musculus, the broad maxille and thick, 
obtuse nasals, are found in the Ocean City whale. The nasal bones were not in 
the skull when I examined it in 1900, but they are described by Cope as follows: 
“The nasal bones have a parallelogrammie superior outline, but are very convex in 
the fore-and-aft direction, the surface descending forward. They are flat posteri- 
orly ; at the middle the adjacent edges are raised, but at the distal end the external 
edges are raised, so that the superior surface is concave in the transverse direction ” 
(31). It will be observed that this agrees with the excellent figure of the nasals 
published by Reinhardt (75,187). ‘This figure is one-ninth natural size. The two 
nasals together are shown to be 7.9 in. wide at the proximal end, and 9.25 in. wide 
at the distal end. The nasals in a cranium at the Newfoundland station were 10 in. 
wide at the proximal end and 10.75 in. wide at the distal end. They are figured 
in pl. 7, fig. 10. In Miinter’s Ragen Id. specimen they measured 6.9 in. at the prox- 
imal end and 7 in, at the distal end. 
The breadth of one of the maxille at the middle of its length, compared with the 
length of the same bone, is 12.7 % in the Iceland whale (Reinhardt), 12.8 @ in the 
Hull whale (Flower), and 13.5 % in the Ocean City whale. Other measurements 
of the Ocean City whale are as follows: 
BALASNOPTERA MUSCULUS (L.). OCEAN CITY, N. J., OCTOBER 1891, 
’ 
Length of skull, straight......5. 0000s e cee ter teen eet ween nee 14 ft. 74 in.’ 
Greatest breadth, squamosall 33 55.000. - seem ee ee ae ae es Tete? ee 
Breadth of orbital process of frontal at distal end .........-....-- Oey ati y & 
Length of rostrum, straight........--..---esees sees eens cee cee Chigy wna ue ne 
Breadth of rostrum at middle, curved..........-.-+++.+22002 Sen lk Pa tl 
Length of mandible, straight............-+2--+2s-0 esses seen eenee Loa paar 
iia < CUTVE Myo prcteesd fc ciate a Gol stotiee ts oon ee aeunoret tet Lye Blea 
Depth “ = Bit GHKKlIe, Seo ono omAao naCU Nou OD AO ODO ODODE ra algeg: ire 
Greatest bread hvotrasiseemeeeretseiis ceo cieceieeiateteteseisitattsteletetete RNa Omues 
Depth of centrum of axispyehietsene ele lelelleietereteticer es etek ieteelr Oo ite 
Greatest breadthvofsrstid orsalleyye nos <i lore eyelet eieierelelats ela te te) tered 2 ETO Wee 
Depthvof centri Otsu meee cy lehe lela otekeetel stele icledetel tetetey-totctel-Pelot> One ros, 
Greatest bread hao tens tal ih aieme ret reebieet ste tereteleveteteteteiehe iets tetetel-iater-r Manel (0 ame 
DEN OF Gemini ~~ sonosovomonoccupoo esos ocuo conn pans Our aelhie: 
Greatest breadth of rst Gawday esi. coe. sree cle ere nie) eieieieleialele)eie\s\elei Bry OW P} 
Daun Gk Goan OF” on eoog nooo db ooubscoMsDerooeUGDOE Poe ved 
Greatest breadth of scapula............... idshe Slevaisyste fe siecsieisslersierd Vie Sami i 
cy Glan eS) oncacacommernnDobdr canconcoosonsho as Des SHOU 
Length of radius, without epiphyses.............200sseeceeee eee 2 ae VBA 
eS Sulna Pens isis. disimostnmie aertereeeeeks met Bond MIG ige ee 
Breadth) of radiuseatadistaleendms fierce iaeieiite teenie ett Op i ~ 
re Ssrulnas + Se tee COL ORR IETS Oo bef 0o400 ootU oot OM On im eels 
‘Estimated. Add 8 in. for premaxille. * Without premaxille. * The greatest = 344 in. 
* Least. The greatest is 18 in. ‘ Breadth of maxilla only. 
