CHELYDOID CHELONIANS OF NEW GUINEA 451 



which is more than twice as long as the suture between the 

 pectorals ; suture between the anals about twice as long as that 

 between the femorals. Head a little larger than in C. longicollis, 

 with stronger lower jaw ; the diameter of the latter at the 

 symphysis is more than half the diameter of the orbit. Five 

 broad transverse lamellae on the upper surface of the fore limb. 

 Chestnut-brown above, brownish yellow inferiorly. 

 Katow, S. E. New Guinea (L. M. D'Albertis). 



ADDITIONAL NOTES ON THE NEW SPECIES. 



Emydura albertisii. 



Two specimens, male and female. 



Length of carapace 

 Width of carapace 

 Length of plastron 

 Length of front plastral lobe 

 Width » » » 



Length of hind plastral lobe 

 Width » » » 



Depth of shell 



Carapace of male nearly smooth , obtusely keeled, of female 

 with strong longitudinal rugosities and without keel. Nuchal 

 shield about twice as long as broad ; vertebrals broader than 

 long, first not broader than second ; supracaudal shields about 

 as long as broad. Plastron flat and smooth in the male, angu- 

 lated laterally, convex and striated with shallow longitudinal 

 grooves in the female. Suture between the pectoral shields 

 about as long as that between the femorals ; suture between 

 the abdominals as long as that between the anals ; suture 

 between the humerals hardly one fourth the length of the in- 

 tergular; pectorals in contact with the fourth, fifth, and sixth 

 marginals, abdominals with the sixth, seventh, and eighth. The 



