. A manual of zoology. 39° MANUAL OF ZOOLOGY may be nearly completely cartilaginous {Hcxanchus and Heptanchus), but usually the centra are strengthened by. Fig. 233. — Skeleton of sting-ray (UrolophUS testaceus), ventral view, , anterior vertebral plate; bas. br, basi-branchial plate; br. i-br. j, branchial arches. The branchial rays are represented as having been removed, the round dots indicate their articulations with the arches cl, skeleton of clasper; h, m, hyomandibular; Jty. hyoid arch; lab, labial cartilage; lig, ligament connecting the hyomandibular with the palato-quadrate and M
. A manual of zoology. 39° MANUAL OF ZOOLOGY may be nearly completely cartilaginous {Hcxanchus and Heptanchus), but usually the centra are strengthened by. Fig. 233. — Skeleton of sting-ray (UrolophUS testaceus), ventral view, , anterior vertebral plate; bas. br, basi-branchial plate; br. i-br. j, branchial arches. The branchial rays are represented as having been removed, the round dots indicate their articulations with the arches cl, skeleton of clasper; h, m, hyomandibular; Jty. hyoid arch; lab, labial cartilage; lig, ligament connecting the hyomandibular with the palato-quadrate and Meckel's cartilage; ntck, Meckel's cartilage; nts. fit, mesopterygium; mt. f>t, metapterygium of pectoral fin: ', metapterygium of pelvic fin; ?ias, nasal cartilage; pal, palato- quadrate ; pect, pectoral arch; pi, pelvic arch; , propterygium; sp, spiracu- lar 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 Parker, T. Jeffery (Thomas Jeffery), 1850-1897; Haswell, William A. (William Aitcheson), 1854-1925. New York, The Macmillan Company; London, Macmillan & Co. ,Ltd.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1900
