. A manual of zoology. Zoology. ^y // Ty. Fig. 575,—Carapace (A) ami plaslron (B) ot Tcshido s^ if roni \\'ie. hv]ioplaslron; //v, hyoplastron; .1/, marginal ]>lalcs; N. neural plates; A'/>, nuchal plate; I'y, pygal jilale; R, ribs; V, anterior; Xi, xiphisternum. with the ribs, and that the cntophulron is regarded as an episternum. It is not connected with the internal skeleton, since the sternum is lacking. The pelvis is only rarely fused with the plastron. This bony case is usually covered with horny shields, their number and arrangement usually agreeing with the bony plates, alth

---

. A manual of zoology. Zoology. ^y // Ty. Fig. 575,—Carapace (A) ami plaslron (B) ot Tcshido s^ if roni \\'ie. hv]ioplaslron; //v, hyoplastron; .1/, marginal ]>lalcs; N. neural plates; A'/>, nuchal plate; I'y, pygal jilale; R, ribs; V, anterior; Xi, xiphisternum. with the ribs, and that the cntophulron is regarded as an episternum. It is not connected with the internal skeleton, since the sternum is lacking. The pelvis is only rarely fused with the plastron. This bony case is usually covered with horny shields, their number and arrangement usually agreeing with the bony plates, although without their contours exactly coinciding. More important are the great firmness of the skuil and the immovable. 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929, ed. and tr. New York, H. Holt

---

Size: 1359px × 1839px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912