BY H. H. SCUTT AND CLIVK E. LORD. 1( 



mature male, with all the epiph\ses of the vel•tebr^e open, 

 is close to the stature of the female. The following charac- 

 ters were noted, as marking the female off from the mature 

 and immatui'e males. 



1. Diapophyses of the dorsal ribs longer than in the 

 other two animals. 



2. First, cei-vical, neural spine covers more vertebi"3e. 



3. No bicipital groove between head and trochanter 

 of the humerus. Articular surfaces set at a more oblique 

 angle (I2i- 



4. Supra scapular rim was centrally elevated, and not 

 depressed, and the pre, and post, scapxilar fossje made n 

 nearer approach to the roughened fossje of Tnrsia/is than 

 either of the other specimens here detailed. 



We hope in our next paper to give exhaustive data re- 

 lating to &ex variations in the genus y'lirsiaps, and the 

 notes here supplied will receive added value from tne 

 light thus thrown upon a vexed question. 



In conclusion, we desii'e to express our thanks to Mr. 

 John Arnold, Chief Assistant cf the Tasmanian Museum, 

 for the willing and courteous assistance rendered to us 

 during the examination of the specimens. 



DESCRIPTION OF PLATP:S. 



Platf. I. 

 Artif iilatod i^koleton of I'xt mlorrd rras.-ii(lenx from 

 j^idventui-e Bay, Tasmania. 



Pl.\tk II. 

 Skull of Orca iilnd nifor. 



Plate III. 

 Cervical vertebra? and first dorsal of Orra (ihulinldr. 



Plate IV. 

 Four vertebrae of the Dorsal Series {(). (jhtd .(itur). 



Plate V. 

 Five vertebra? of the Lumbar series {(). fihidinlnr). 



Plate VI. 

 Four chevron bearing vertebrae (0. fflailiator). 



Plate VII. 

 Sternum of Orrn (ihidlatitr. 



Plate VIII. 

 Series of Ribs of Orrn (jhidicitor (showing broken ribs). 



Plate IX. 

 Skull of Glohicei'linlus iiieJax. 



(1'2) These arm bones are only provisionally associated with this 

 skeleton, and may not belonc to it. Various dolphin remains — 

 evidently odd scraps of later date than Dr. Crowther's specimens — 

 had been added to the box from time to time; these included some 

 TuTsiops bones of no value. 



