i6 



In addition to the jaws and teeth, (which have been very 

 accurately described), we have a portion of a pelvis and femur, 

 which are important as tending to confirm the reference of 

 this genus to the Lemurs. 



The pelvis is represented by the acetabulum and a small 

 portion of ilium and ischium. They resemble the corre- 

 sponding parts in the skeleton of 'Stenops gracilis. The aceta- 

 bulum is a long oval, not subcircular, deep, and quite narrow 

 from side to side. It appears to be directed nearly straight 

 outwards. The ilium is narrow, has a concave gluteal sur- 

 face, and a prominent acetabular border. The pubis evidently 

 projected forward, making a right angle with the ilium ; while 

 the ischium is slender and nearly in the same plane with the 

 ilium. The femur is thoroughly lemurine in shape. The shaft, 

 (as much of it as is preserved), is straight and subcylindrical ; 

 it is not flattened even distally, but becomes very thick and tri- 

 hedral in shape just above thetrochlea. The trochlea is long, 

 and rises obliquely upon the shaft ; the groove is deep, and the 

 two divisions are asymmetrical, the external somewhat the 

 larger. The condyles are large. They are but slightly con- 

 vex in either direction and project backwards, and are broad- 

 est posteriorly. The internal is the larger. They are sepa- 

 rated by a deep but not wide popliteal groove, which does 

 not extend into a popliteal fossa. The position and shape of 

 the condyles are such as show that the femur must have been 

 very oblique to the tibia, as in the other lemurs. The tube- 

 rosities, especially the internal, are very large and prominent. 

 The whole distal end has an asymmetrical appearance, owing 

 to the greater size of the internal condyle. 



Measurements. 



M. 



Breadth of ilium at acetabulum -0065 



Vertical diameter of acetabulum -007 



Transverse diameter of acetabulum 009 



Fore-and-aft diameter of shaft of femur above trochlea -0065 



Transverse diameter of shaft above trochlea -0065 



Width of trochlea -004 



Length of trochlea -0075 



Breadth over condyles -oio 



Breadth of inner condyles -005 



