. Geological magazine . Fig. 11.—locrinus subcrassiis.(Outline after W. & Sp.) Fig. 12.—Dendrocritmslongidactylus.(After J. Hall.) Fig. 13.—Bendrocrinus Casei. (Diagrammatized from W. & Sp.). Fig. 14.—Poteriocrhms Fig. 15.—Cyathocriniis Fig. 16.—Parisocrinus. [Scaphiocrinus) elegans. longimanus, anal area. (From MS. drawing lent me (After W. & Sp.) (Diagrammatized from by Wachsmuth.)Angelin by W. & Sp.) supporting by its upper margin a tube-plate; this latter {rt) restsbetween x and r. post. R, and is followed by a vertical series ofsimilar plates; on the left of x, and resting on 1. post. R,


. Geological magazine . Fig. 11.—locrinus subcrassiis.(Outline after W. & Sp.) Fig. 12.—Dendrocritmslongidactylus.(After J. Hall.) Fig. 13.—Bendrocrinus Casei. (Diagrammatized from W. & Sp.). Fig. 14.—Poteriocrhms Fig. 15.—Cyathocriniis Fig. 16.—Parisocrinus. [Scaphiocrinus) elegans. longimanus, anal area. (From MS. drawing lent me (After W. & Sp.) (Diagrammatized from by Wachsmuth.)Angelin by W. & Sp.) supporting by its upper margin a tube-plate; this latter {rt) restsbetween x and r. post. R, and is followed by a vertical series ofsimilar plates; on the left of x, and resting on 1. post. R, is a rathersmaller tube-plate {It), also supporting a Yertical series; x itselfsupports a median vertical series, of which the proximal plate maybe distinguished as mt. As to the homologies of these plates, all aie now agreed thatRA represents the right posterior inferradial, and my name for it,* radianal, has won general adoption. Tiiis plate, as Wachsmuthand Springer rightly insist, is always found to alternate with theunderlying basals; in the early stages of phylogeny it supporteda STiperradial of equal width, but that became squeezed to the rightas the anal plates d


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