. Report on the scientific results of the voyage of Challenger during the years 1873-76 : under the command of Captain George S. Nares, , and Captain Frank Turle Thomson, outer portion of the lateral wall (combinationfigure); x 100. Fig. 3. Autodermal pentact with rough rounded rays ; x 100. Fig. 4. Autodermal tetract with straight, rough, rounded rays; x 100. Fig. .5. Autogastral hexact with straight, rough, rounded rays; x 100. Fig. 6. Parenchymal discohexaster ; x 450. Fig. 7. Portion of the marginal part; natural size. Fig. 8. Discohexact, perhaps extrinsic and intr
. Report on the scientific results of the voyage of Challenger during the years 1873-76 : under the command of Captain George S. Nares, , and Captain Frank Turle Thomson, outer portion of the lateral wall (combinationfigure); x 100. Fig. 3. Autodermal pentact with rough rounded rays ; x 100. Fig. 4. Autodermal tetract with straight, rough, rounded rays; x 100. Fig. .5. Autogastral hexact with straight, rough, rounded rays; x 100. Fig. 6. Parenchymal discohexaster ; x 450. Fig. 7. Portion of the marginal part; natural size. Fig. 8. Discohexact, perhaps extrinsic and intruded ; x 300. Fig. 9. Outer part of a pleural pentact prostale ; x 100. Fig. 10. Parenchymal diact, with four central cruciately disposed knobs, andrough, rounded ends ; x 100. Fig. 11. Parenchymal rod-like sj)icule, with rough, rounded ends; x 100. Fig. 12. Inferior part of an anchor-like spicule of the basis ; x 100. Fig. 13. Outer view of a pleural pentact prostale ; x 100. Fig. 14. Discohexaster with slender perianth-like bundles of terminal rays ; x 300 Fig. 15. Discohexaster with three terminal rays on each principal; x 300. The Voyage of „Challen6err Hexactinellida. PI FESchuize andGJirlscTi de! XitKRn3:TWeincr&>fintCT,Frankftn*M ROSSELLA ANTARCTICA. PLATE LVI. PLATE LVI. PAGE Acanthaseus grossidaria, ¥.Ei. ^., . .145 Fig. 1. A specimen, preserved in alcohol; natural size. Fig. 2. Vertical section of the marginal portion ; x 30. Fig. .3. Discohexaster with perianth-like bundles of terminal rays ; x 300. Fig. 4. Terminal rays of a discohexaster shown in fig. 3 ; x 1000. Fig. 5. Autodermaltetract with straight, somewhat rougli, rounded rays; x 100. Fig. 6. Autodermal pentact with straight, somewhat rough, rounded rays;xlOO. Figs. 7,8. Oxyhexaster with long, straight, smooth, terminal rays; x 300. Fig. 9. Small discohexaster with three to four spined terminal rays ; x 450. Fig. 10. Small discohexaster with much spined terminal rays ; x 450. Fig.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscienti, bookyear1887
