. The Cambridge natural history. Zoology. ECHINUS ARISTOTLE'S LANTERN S2S jections of the upper wall of the lantern-coelom. These projections. FiQ. 234.—Echinus escuUntws dissected in order to display Aristotle's lantern, x 2. The whole upper part of the shell has been cut away. 1, Upper growing end of tooth ; 2, outer forked end of one " compass " ; 3, muscle joining adjacent compasses and acting as elevator of these ossicles ; 4, depressor of the compasses ; 5, lower end of jaw ; 6, retractor of the whole lantern ; 7, protractor of the whole lantern ; 8, auricle ; 9, ampullae of th
. The Cambridge natural history. Zoology. ECHINUS ARISTOTLE'S LANTERN S2S jections of the upper wall of the lantern-coelom. These projections. FiQ. 234.—Echinus escuUntws dissected in order to display Aristotle's lantern, x 2. The whole upper part of the shell has been cut away. 1, Upper growing end of tooth ; 2, outer forked end of one " compass " ; 3, muscle joining adjacent compasses and acting as elevator of these ossicles ; 4, depressor of the compasses ; 5, lower end of jaw ; 6, retractor of the whole lantern ; 7, protractor of the whole lantern ; 8, auricle ; 9, ampullae of the tuhe - feet; 10, iaterambulacral plate ; 11, lower part of tooth; 12, water-vascular ring; 13, meeting-point of a pair of epiphyses ; 14, so-called Polian vesicle, really equivalent to Tiedemann's body in an Asteroid ; 15, oesophagus; 16, so-called veutral blood-vessel; 17, genital stolon ; 18, stone-canal; 19, rectum ; 20, aboral sinus. (Partly after Chadwick.) are the growing points of the teeth, whose lower ends pierce the. 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 Harmer, S. F. (Sidney Frederic), Sir, 1862- ed; Shipley, A. E. (Arthur Everett), Sir, 1861-1927. ed. [London, Macmillan and Co. , Limited; New York, The Macmillan Company
Size: 1424px × 1756px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
