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A.
NEW SP1ECIES OF CRINOIOEt OF Tllt CAIUDONIFELAiUUS LDMii STO1.
Tab. V. A, Fig. I.  Platyui irnts discoideus (N. S.)  Burlirgton, owa.
a. Busal view.
h. Side view, showin'g thc formii of the artionillatiig siim lie ol  ;II,
Fi a.
Fig. 2.  Plalycrinusis corrniqwlus (N. S.)  Burblingtol, Iowa.
it. 3lasal view, witxh several joillts of coluaii attilelhel.
6. S.ile view, showing the form of the lirst Cerielorini jouAl  I thl ;tIII
- . Detac.hed scapular plate.
di.   1l basal plate.
c. Scapular plate, enlarged, showintg the corrugated surfi r e.
Fig. S. .Algistocrints Evansii (N. S.)  But lington, Iowa.
a- a. Sitle view of the botly, natural size.
I    b. Basal aspect, shoiwing the lbrin of the basal aind fii st seriu ot
pIu, s
Fig. 4. Platycrinusplianus (N. S.) Blirlillgtonl Iowa.
I    a. View of the face of at specinlael of iriedium size.
b. View of a large specimen, from Berliitgton, Iowa.
c. Detached basal plate.
Fig. 5.  Platlyeri us Burlingtonensis (N. S.)  Bullrlinigton, lowa.
Fig. (;. Platlycinus Yandellii (N. S.)  Burlington, Iowa.
a. Side view.
b. Basal view.
Fig. S. Cyatlhocrimts cornutus (N. S.) Biurlintgtonl, Iowa.
a. Side view.
6 b. Basal aspect.
Fig. 10. Dichocrlinus ovatus (N. S.)  Burliilgton, Iowia.
a. View of the face, exhibitinge a fragiiternt of ati arn attached to (.,le
,,f tile slupl rti r plaetes.
b. Basal plate, exhibiting its bi-partite character.
Fi;. 10. Dichocrines striatus (N. S.)  Burlington, Iowa.
a. View of the side, showing the longitudinal stria} rtittnitg liver tIe
suirfalce of the plates.
.b Basal plate, exhibiting the division.
Fig. 11. Cyalhocrinus Jowensis (N. S.)  Burlington, Iowa.
a. Basal aspect.
b. View ofthe side.
c. Detached superior plate, showing the corrugated snilrice.
Fig. 12. .Actinocrinus anicornus (N. S.)  Burlinigtou and August.t, Iowtt.
a. Basal view.
b. Side view, exhibiting the position of the toiouth, a nid the cu tral sphiioais
capitail plate.
Fig. 13. Pentremites Norwoodii (N. S.)  Burlington aild Augusta, Iowtt.
a. Basal view.
b. View of the sunimit.
c. View of the side.
Fig. 14. Penlremites mclo (N. S.)  Burlington, Iowa.
a. View of the summit, exhibiting the apertures.
b. Basal view.
" c. Side view.
Fig. 15. Pentremites lateruniyomis (N. S.)  Mill Creel;, RIandiolphl Conty,
Illin'ois.
Fig. 16. Pentrermites stclliformis (N. S.)  Burlinigtoii, iowa.
a. View of'tho sumnlit, exhiitting its star-like conitoulr arid the oval
aperttre.
b. Side view.