Kansas University quarterly . agenodiis) which Dr. Williston has described elsewherein this number. The limestone in which the fish are found is al-most entirely made up of sponges. It is from a thin limestoneabout six inches in thickness in a ravine three miles northeast ofRobinson, Kansas, that these specimens and the fish were taken. PLATE ^XXII. 1. Erisocrinus iuegalobrac]iius. I a. View of base of calyx of Side view of tjpe. 2. Ccrioc?iniis? monticitlatiis. Side view of t3pe. 3. OUgoporus? minutits. Top view of t3pe showing the arrange-ment of the ambulacra. 4. JSTxalina? cxasper
Kansas University quarterly . agenodiis) which Dr. Williston has described elsewherein this number. The limestone in which the fish are found is al-most entirely made up of sponges. It is from a thin limestoneabout six inches in thickness in a ravine three miles northeast ofRobinson, Kansas, that these specimens and the fish were taken. PLATE ^XXII. 1. Erisocrinus iuegalobrac]iius. I a. View of base of calyx of Side view of tjpe. 2. Ccrioc?iniis? monticitlatiis. Side view of t3pe. 3. OUgoporus? minutits. Top view of t3pe showing the arrange-ment of the ambulacra. 4. JSTxalina? cxasperata. Left? view of tjpe. 5» Posidonoiiiya? pertenuis. Left? valve of Posidononiya? recuj-va. y,; 6a. Left? valve of type. 6b. Right? valve of another specimen, a Left? valve of the above with a portion of the shell lefton one side, which shows the surface markings. Thebeak is somewhat crushed and twisted so that it doesnot appear to extend above the hinge. Kan. Univ. Quar., Vol. VIII, .Series A. PLATE Syd. Irentice. del. PLATE XXXIII. Somphospongia viiiltiforniis. 1-4. Figures to illustrate the outlines of smaller than natural size. 5. Photograph of the top of another specimen showing thecanals. Less than natural size. 6. Drawing to illustrate the thickness of the dermal 7. Outline of larger specimen showing mushroom-form. One-half natural size. 8. Tracing of a section through the top of one of the spongesshowing the arrangement of the canals, which are stippled. Theunstippled portion is the body of tiie sponge. Reduced one-half. g. Semidiagrammatic section through the cloaca of a small indi-vidual showing the canals, which are stippled, and the semicon-cretionary nature of the outer part of it. 10. Portion of the surface of a weathered specimen showingwhat appears to be the body skeleton of the sponge. Magnified. Kan. Univ. Qdar., Vol. VIII, Seriks A. PLATE XXXIU.
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