Opheomorphus brachyurus Cope; Brazil 25 ( 2) 



Opheomorphus cobella Linnaeus; Brazil 24 ( 4) 



Opheomorphus typhlus Linnaeus; Brazil 24 ( 3 ) 



Ophibolus californiae De Blainville; 



Lower California 19 ( 8) 



Ophibolus calligaster Say; Kansas 18 ( 6) 



Ophibolus getulus Linnaeus; N.America 18 ( 7) 



Ophibolus rhombomaculatus Holbrook; 



District of Columbia 18 ( 5) 



Ophiophagus benyurus Schlegel; Malacca.... 30 ( 2) 



Orphryacus undulatus Jan; Mexico 31 ( 7) 



Osceola doliata triangulum Boie;New York.. 18 ( 4) 



Osceola elapsoidea Holbrook; Florida 18 ( 3) 



Oxybelis acuminata Wiedmann; Central 



America 28 (16) 



Oxyrrhopus petalarius Linnaeus; Brazil.... 26 ( 5) 



Oxyrrhopus plumbeus Wiedmann; Brazil 26 ( 4) 



Pareas moellendorf f ii Boetcher; Hainan ... 13 (12) 

 Petalognathus nebulata Linnaeus; Costa 



Rica 23 (13) 



Philodryas nattererii Steindachner ; 



Paraguay 26 ( 6 ) 



Philodryas schottii Fitzinger; Paraguay... 26 ( 7) 



Philodryas viridissimus Linnaeus; Brazil.. 25 ( 8) 



Phyllorhynchus brownii Ste jneger ;Arizona. . 17 ( 4) 

 Pityophis sayi Schlegel ; western 



North America. 14 ( 3) 



Pliocercus elapoides Cope; Mexico 23 ( 9) 



Pogonaspis ruficeps Cope; Costa Rica 28 (13) 



Procinura aemula Cope; Mexico 28 (10) 



Proterodon tesselatus Hallowell; Japan.... 18 ( 9) 

 Psammodynastes pulverulentus Boie; 



Tonquin 27 (10) 



Pseudaspis cana Linnaeus; So. Africa; 



(the hemipenis in natural erection and 



not split, one-half not fully evaginated 



from the outside; a, from above.) 22 ( 9) 



Pseudoeryx plicatilis Linnaeus; Brazil.... 24 ( 7) 



Python spilotes Lacepede; Australia. 13 ( 7) 



