86 SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGE VOL. 35 



EIGHT FEMUK OF CYNOPTERLTS. 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 lacumt 

 and straight canaliculi surromiding the medullary canal. The bone is unifonn. 

 Type I. 



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



Pl. 8, Pig. 154. 8yx. Tab. IV 



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

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

 The medullary canal is full. Medullary iude.x;, 33%. 



Structure. — The section is (composed of concentric lamella; with oval lacunae 

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

 Type I. 



LEFT FEMUR OF BRACHYPHYLLA. XO. 103251, U. S. NAT. MUS. 



Pl. 8. Fi(i. 15.-). 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 lacuna? 

 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 lacuna^ 

 and straight canaliculi surroundiuu- tlio medullary canal. The bone is uniform. 

 Type I. 



