86 



SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE 



VOL. 35 



RIGHT FEMUR OF CYNOPTERUS. NO. 141241, U. S. NAT. MUS. 



Pl. 8. Fig. 153. Syn. Tab. IV 



Antero-posterior diameter of bone, 1 mm. ; lateral, 0.8 mm. 

 Antero-posterior diameter of medullary canal, 0.5 mm. ; lateral, 0.4 mm. 

 The medullary canal is full. Medullary index, 33%. 



Structure. — The section is composed of concentric lamellae with oval lacuna? 

 and straight canaliculi surrounding - the medullary canal. The bone is uniform. 

 Type I. 



LEFT FEMUR OF ARTIBEUS PALMARUM. NO. 102866, U. S. NAT. MUS. 



Pl. 8. Fig. 154. Syn. Tab. IV 



Antero-posterior diameter of bone, 1 mm. ; lateral, 1 mm. 

 Antero-posterior diameter of medullary canal, 0.5 mm.; lateral, 0.5 mm. 

 The medullary canal is full. Medullary iudex, 33%. 



Structure. — The section is composed of concentric lamella? with oval lacunas 

 and straight canaliculi surrounding the medullary canal. The bone is uniform. 

 Type I. 



LEFT FEMUR OF BRACHYPHYLLA. NO. 103251, U. S. NAT. MUS. 



Pl. 8, Fig. 155. Syn. Tab. IV 



Antero-posterior diameter of bone, 1.5 mm. ; lateral, 1 mm. 

 Antero-posterior diameter of medullary canal, 1 mm. ; lateral, 0.5 mm. 

 The medullary canal is full. Medullary index, 56%. 



Structure. — The section is composed of concentric lamellae with oval lacunae 

 and straight canaliculi surrounding the medullary canal. The bone is uniform. 

 Type I. 



RIGHT FEMUR OF MACROGLOSSUS MINIMUS. NO. 171695, U. S. NAT. MUS. 



Pl. 8, Fig. 156. Syn. Tab. IV 



Antero-posterior diameter of bone, 1 mm. ; lateral, 0.8 mm. 

 Antero-posterior diameter of medullary canal, 0.5 mm. ; lateral, 0.4 mm. 

 The medullary canal is full. Medullary index, 33%. 



Structure. — The section is composed of concentric lamellae with oval lacunae 

 and straight canaliculi surrounding the medullary canal. The bone is uniform. 

 Type I. 



