. Text book of vertebrate zoology. Vertebrates; Anatomy, Comparative. Fig. 317. Diagram of the cephalic plates in a colubrine snake, f, frenal; ft, frontal; /, internasal; il, infralabial; «, nasal; /, parietal; pf, prefrontal; po, postorbital; pro, preorbital; /, rostral; si, supralabial. lacking. The premaxillary is very small, and there is no columella. The quadrate is articulated to the supratemporal (squamosal aucf), which in most forms has but a loose connection with the other bones of the skull. Teeth occur on the maxillae and pterygoids, and usually on the palatines,. Fig. 318. Skull o
. Text book of vertebrate zoology. Vertebrates; Anatomy, Comparative. Fig. 317. Diagram of the cephalic plates in a colubrine snake, f, frenal; ft, frontal; /, internasal; il, infralabial; «, nasal; /, parietal; pf, prefrontal; po, postorbital; pro, preorbital; /, rostral; si, supralabial. lacking. The premaxillary is very small, and there is no columella. The quadrate is articulated to the supratemporal (squamosal aucf), which in most forms has but a loose connection with the other bones of the skull. Teeth occur on the maxillae and pterygoids, and usually on the palatines,. Fig. 318. Skull of garter-snake {^Eutainia sirtalis). a, angulare ; d, dentary; e, ethmoid; /, frontal; m, maxillary; «, nasal; /, parietal; pa, palatine; pm, premaxillary; pf, prefrontal; po, postfrontal; ps, parasphenoid; //, pterygoid; </, quadrate ; s, supratemporal; /, transversum; r, vomer. and they may be present on premaxilla. The teeth are usually sharp, conic, and retrorse, and frequently those of the maxilla may be grooved. When the grooved teeth occur on the anterior end of the maxilla (Protero- glypha, Solenoglypha) they are connected with poison glands. The rami. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
Size: 2329px × 1073px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyorkhholtandcom
