. Geological magazine . a-^Q^ Fig. 1.—Glyptociiniis From posterior interradius (after Sp.), showing ar, the anal ridge,dividing the interbrachials, Another interradius, for com-parison (after Meek). Fig; 2.—Anal area of Ulocrinus Blairi (based on Miller & Gmieysfigure). This is not Ulocrinus,but represents a stage betweenEupachycrinus and Ulocrimis. Itstrongly supports the homologyhere adopted for the anals ofUlocrinics. 1 The North American Crinoidea Camerata. By C. Wachsmuth and F. Mus. Comp. Zool. Harvard, vols, xx and xxi, containing 838 pp. and

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. Geological magazine . a-^Q^ Fig. 1.—Glyptociiniis From posterior interradius (after Sp.), showing ar, the anal ridge,dividing the interbrachials, Another interradius, for com-parison (after Meek). Fig; 2.—Anal area of Ulocrinus Blairi (based on Miller & Gmieysfigure). This is not Ulocrinus,but represents a stage betweenEupachycrinus and Ulocrimis. Itstrongly supports the homologyhere adopted for the anals ofUlocrinics. 1 The North American Crinoidea Camerata. By C. Wachsmuth and F. Mus. Comp. Zool. Harvard, vols, xx and xxi, containing 838 pp. and 8a plates.(Cambridge, , May, 1897.) For First, Second, Third, and Fourth Notices,see GEOLfMAG. for June, July, September, and November, 1898. 2 Miller and Gurley, 1890 = Cmocri«?<s White pars, 1880, non Desor, 1845, neeKoniff in tabb. iueditis. JRevietPs—Wachsmuth 8f Springers Monograph on Crinoids. 33. BA I ir III Fig. 3.— TJlocrinus (diagrammatized from Miller & Gurley ; x f).Posterior view of cup of U. Buttsi. Xote that x is not so far remoTed frompost. B. as in II, U. kansasensis, posterior vie-w. III. The same seen fromabove, showing the upper surface of x, which must have supported tube-plates.

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