ODONTOLABIS INTERMEDIUS. 227 



but on the other hand , the great length of the mandibles 

 renders this supposition somewhat doubtful. The examination 

 of an extensive series only will enable us to settle the 

 question satisfactorily. 



Forma amphiodonta. Mandibles longer than the head, 

 straight , rounded , with four apical teeth , strongly expanded 

 inwards , at the base with three obtuse teeth. In the unique 

 specimen I have , the basal teeth of the right mandible 

 are entirely melted together, forming a single broad blunt 

 appendix ; on the left side the two undermost teeth are but 

 faintly indicated , whilst the uppermost is rather strongly 

 projecting. 



Female. Very much like that of 0. celebensis Leuthn. and 0. 

 alces F. ; as far as I can judge from the single exponent I 

 have at my disposal , it differs from both in a few pecu- 

 liarities of the prothorax , viz. : the front angles are angular 

 instead of broadly rounded , the lateral concavity before the 

 middle spine is deeper and the spine is more prominent 

 and acute. The uppersurface is neither so glossy as that 

 of celebensis, nor so dull as that of alces. The front tibiae 

 have four spines above the terminal fork. 



Notes from the Leyden Museum , Vol. XI. 



