128 BULLETIN 36, UNITED STATES NATIONAL MUSEUM. 



tlic chevron bones commence, etc., which are shown in the following 

 table : 



Cbaractera. 



Total iiiuuber of vertebno 



Ulievroua bcj;in at vertebra number 



Chevrons end at vertebra number 



Neural spines become obsolete at number 



Tr.i usvei se processes become obsolete at number 

 I'crfi nations for caudal artery begin at number 

 I'lKilin.iies: 



First finder 



Secoiid linger 



Tliird iin<5er 



Fourth linger 



F'iftli finger 



M. 

 Fischer's 

 skeleton. 



No.— TJ. 

 S.N.M. 



No. - TT. 



S. N. M. 



65 (?+3) 

 38 

 ?58 

 59 

 5t 

 45 



1 

 9 



7 



67(?+2) 

 '■.'.9 

 61 

 60 

 54 

 40 



Professor 

 Flower's 

 skeleton. 



As regards the shape of the sternum, the number and shape of the 

 sternal ribs, the shape of the acromion and coracoid and of the hyoid 

 bones, our two skeletons agree exactly with that described byM. Fischer. 



The skulls are of all ages, the younger having the elements of the 

 <)cci[)ital bone, and likewise all the other bones of the skull separate, 

 M hile in the older the sutures between the palatine and maxillary bones 

 and the maxilhie and iutermaxillsB have disappeared. 



In five cases the mandible is present, and there are also in the col- 

 lection two additional complete jaws. In these the number of teeth 

 is i'.s follows : 4-t; 4-4; 4-4; 5-4; 5-4; 5-5; G-G; which goes to coii- 

 lirm the truth of the remark of M. l^ischer, viz: 



11 est (lillicile do ue pas admettro uue seulo espoce, doot la deutition varie eutrc 

 ^5-1 ct C-f).* 



Tlie proportions of the adult skull described by Professor Flower 

 agree very closely with those of one of equal size in our Museum, as 

 is sliown in the following table (Professor Flowxr's measurements being 

 lor 'convenience reduced to centimeters) : 



Measurements. 



Eulire lengtli 



Lounlh of rost<'nm 



l!rea<itli ot ociipilal fin amen 



(ireatest !isij;lit of ociipital foramen 



l!reailtli of o((i])ital condyles 



Greatest bread li of cranium (at jiaiietal region in tempo 



lal fossa ) 



Greatest breadth of skull (at zygomatic process of .sipia 



iiiosals) 



Breadth at anteorbital processes of frontal 



lii eadth of anterior nai eal apertures 



Hrra<lth of rostium at base (l)otti)m of anteorbital notch) . 

 JJieadth of rostrum at middle 



Professor 

 Flower's spe- 

 cimen 5 . I 



No. 21047. 



Cape Cod, 



Mass. 



Cm. 



48.8 

 2:i.G 

 3.8 

 4.8 

 11.4 



23.1 



32.8 

 30.0 

 7. 1 

 19. (i 

 11.2 



Cm. 



48.7 

 24. C 

 4.7 



5. 1 

 II. S 



24.0 



34.2 

 31.0 

 7.0 

 20.4 

 11.4 



To sum up the facts presented, it may be said that our specimens 

 agree exactly with the European ones in size, and closely in color (in a 



Fiscbcr, 1. c, p. 2U9. 



