Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass . ive, of various sizes, belongto as many different individuals; the smallest one, lying upon the upper part ofthe left large arm and down along side it, being almost at the distal end. Inthis figure the dimensions of the brachials in these arms can be compared. 5. Detail of same specimen, enlarged X , to show the form and proportions of theproximal free pinnules, especially the lateral sloping of the pinnulars. 6. Disk of specimen No. 205, crossed and obscured by arms and pinnules of otherindividuals, enlarge
Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass . ive, of various sizes, belongto as many different individuals; the smallest one, lying upon the upper part ofthe left large arm and down along side it, being almost at the distal end. Inthis figure the dimensions of the brachials in these arms can be compared. 5. Detail of same specimen, enlarged X , to show the form and proportions of theproximal free pinnules, especially the lateral sloping of the pinnulars. 6. Disk of specimen No. 205, crossed and obscured by arms and pinnules of otherindividuals, enlarged X ; to show the form and proportions of the slenderpinnulars in the upper part of the arm. Here they are cemented by pressure tothe black disk, and by reason of the contrast in color can be well seen. 7. Ventral side of arm and pinnules, enlarged X 8. Articulating surfaces of brachials, enlarged x ; to show the diagonal directionof the fulcral ridges. 9. Syzygial surfaces of brachials, enlarged X , from arms broken off beforefossilization. UlNTACRINUS. Plate If
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1901
