PHOC.ENA 1)AL11I, 



123 



The type-specimeu, tboiigli very yoiiiiy;, uieasured 102*^'" iu length, 

 which wouhl indicate that the species is larger than P. communis. 



In the following table a part of Dr. Bnrraeister's measurements of 

 the skull and exterior are placed in juxtaposition with the measurements 

 of a male specimen of P. communis given by M. Fischer, and of a skull 

 of P, communis from Puget Sound, in the national collection. 



Measurements of (he exlerior. 



Measurements. 



Total len.uth 



Leuijth of the mouth 



Distance from extremity of snout to blowhole 

 DistauLO from extremity of snout to doisai liu 



Height of dorsal tin 



Distance fi om extremity of snout to pectoral . 



Length of jtectoral tin 



Breadth of tiukes 



P. spinijnn- 

 wis. d, typo 



(from 

 Burmeister) . 



Cm. 



1G2. 

 8 5 

 10.0 

 00.0 

 12.5 

 32.0 

 2G. 

 39.0 



P. comimtnis, 



male (from 



i.>"isc'her). 



Cm. 



104.0 

 13.0 

 17.0 

 72.0 

 13.0 

 30.0 

 10.0 

 42.0 



Measurements of the skull. 



Measurements. 



Length of the sknll, from the surface of the occipital 



condyles to the extremity of the beak 



Length from the condyles to the posterior wall of the 



nares 



Length of the beak from its extremity to the loot of the 



malar 



Breadth of the skull between the postorbital processes 



of the frontal 



Bread til of the foramen magnum 



Height of the foramen magnum , 



Height of the skull, from tlie lower edge of the occipital 



coudyles to the crest 



Breadth of the beak at the base. 



Breadtli of beak at middle 



Breadth of the nares 



Distauce from the lower border of tbe foramen magnum 



to til e pterygoids 



Length of the alveolar border 



Length of the lower jaw 



Length of its symphysis 



Height between the angle and coronoid process 



P. spinipin- 

 nig, d, type 



(from 

 Briimeistei). 



Cm. 

 29.0 



P. commxiniii 



Piiget Sound 



U. S. 



Kat. Mas. 



Cm. 

 29.3 



11.0 



It is probable that the skeleton of this species when known will be 

 found to differ considerably from that of P. communis. 



PHOC^ENA DALLII True. 



Phocccna dalUi, True, Proc. U. S. Nat. Mils., vxir, ISB,'), pp. '.».j-93, Pis. ii-vi. 

 Since the publication of my description of this species the National 

 Museum has received a second skull from Lieut. Commander 11. E. Nich- 

 ols, who obtained it at Uoonjah Sound, Alaska.* This specimen and the 



* There i.s also a skull of this species (Xti. 3331) iu the Berlin Anatomical Museum. 

 It was obtained by Cbamisso, but tbo exact locality is not given. 



