58 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 56 



PLATE 10 



Fig. 27. Stereoscopic view of the episternal process from without. (Magni- 

 fied 45 diameters. Photographed with Zeiss hinocular ; Objective a^, Ocular 3.) 



pt V 



pt C 



p t IV 



p t III 



e, Epistcrnum. 



cp, Epimerum. 



pe, Parepisternum. 



pm, Parepimerum. 



ptIII, Processus pterahs thoracis III. 



Fig. 28. Stereoscopic view of the episternal process from within. (Magni- 

 fied 45 diameters. Photographed with Zeiss binocular; Objective a., Ocular 3.) 



PtIV, Processus pteralis thoracis IV. 

 ptV, Processus pteralis thoracis V. 

 ptC, Pterale C. 



V, Stay. 



pt IV 



p t III 



a, Mesapodema (processus scrratus). 



(', Episternum. 



h, Episternal border. 



pc, Parepisternum. 



pill, Parepimerum. 



ptlll, Processus pteralis thoracis III. 

 ptIV, Processus pteralis thoracis IV. 

 ptV, Processus pteralis thoracis V. 

 ptC, Pterale C. 

 V, Stay. 



