VIII PROCEEDINGS OF THE NATIONAL MUSEUM vol.93 



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26. Low shore line of Rio Papaloapan, at Tlacotalpam, Veracruz; some- 



what elevated hank of Rio San Agustin at Boca San Miguel, 



Veracruz 218 



27. Abandoned li 'Ids or milpas grown with scrub. Tres Zapotes, Veracruz; 



primitive forest along Arroyo Corredor, near Tres Zapotes, Veracruz 218 



28. Distant view (if Cerro de Tuxtla from village of Tres Zapotes. Vera- 



cruz: typical lagoon with aquatic vegetation and background of 



swampy forest, near Ties Zapotes, Veracruz '22'J. 



29. New species of bark beetles of the genera Hyhxurtts. Micrads, Micraci- 



sclla, and Stenoclyptus 36.") 



30. New species of bark beetles of the genera Thysanoes, Pseudothysanoes, 



Oryptocleptes, and Chalcohyus 365 



31. Barnacles of the genera Chthamalus, Chelonibia, and Balanus 370 



32. Species of Rhadinaea from Mexico 464 



TEXT FIGURES 



Tago 



1. Skeletal parts of Pinacosuchus mantiensis, new genus and species, type_ 110 



2. Centrum of ?axis of Pinacosuchus mantiensis, type 111 



3. Sacrum of Pinacosuchus mantiensis, type 111 



4. Caudal vertebrae of Pinacosuchus mantiensis, type 112 



5. Dermal spines and scutes of Pinacosuchus mantiensis, type 112 



6. Right dentary of Paraglgphanodon utdhensis Gilmore 210 



7. Skull and lower jaw of Paraglgphunodon gazini, new species 212 



8. Posterior teeth of left dentary of Paraghjphanodon gazini 213 



0. Teeth of left maxillary of Paraglyphanodon gazini 213 



10. Vertebrae of Paragl gphanodon gazini 214 



11. Sketch map of southern Veracruz and western Tabasco 217 



12. Endomychid beetles: Trochoideus coelo-antemiatus, new species, 



Epopterus decoratus Kirsch, Anidrytus parddlinus, new species, 

 Engonius excisipes, new species, Parasynibius macrocerus, new 

 species, Becvaria septemguttata, new species, Saula lobatipes, new 

 species, Heliobletus philippinensis, new species, and Stenotarsus 



Monrovia*, new species 385 



13. Head scales and pattern of Dendrophidion vinitor Smith, from La 



Gloria, Oaxaca _'__ 416 



14. Variation in tail-total length proportion plotted against total length 



in females of Toluca lineafa i-arians (Jan) 488 



15. Variation in tail-total length proportion plotted against total length in 



males of Tqtuca lineala various (Jan) 488 



16. Head and antennae of Tetrastichus 519 



17. Head, thorax, and abdominal structures of Tetrastichus 520 



18. Thorax, dorsal aspect, of Tetrastichus 521 



19. Thorax, dorsal aspect, of Tetrastichus 522 



20. Wings of Tetrastichus 523 



21. Abdominal structures of Tetrastichus 524 



