ECHINODERMATA. 



91 



huntsvill8e,Worthen, 1873, Geo. Sur. 111., 

 vol. 5, St. Louis Gr. [Ety. proper 

 name.] 



internodius, Hall, 1858, Geo. Rep. Iowa, 

 Kaskaskia Gr. [Sig. from the length 

 of the joints.] 



juvenis. Meek & Worthen, 1869, Proc. 

 Acad. Nat. Sci. Phil., Burlington Gr. 

 [Sig. young.] 



liriope. Hall, 1863, (spelled lyriope as 

 published,) Grin. Wav. Sands. Ohio, 

 Waverly Gr. [Ety. mythological 

 name.] 



longidactylus, McChesney, 1860, New 

 Pal. Foss., Kaskaskia Gr. [Sig. long- 

 fingered.] 



macadamsi, Worthen, 1873, Geo. Sur. 111., 

 ;„.,. vol. 5, Keokuk Gr. [Ety. proper 

 name.] 



macrodactylus. Meek & Worthen,- 1869, 

 Proc. Acad. Nat. Sci. Phil., Burling- 

 ton Gr. [Sig. long-fingered.] 



nanus. Meek & Worthen, 1869, Proc. 

 Acad. Nat. Sci. Phil., Burlington Gr. 

 [Sig. dwarfish.] 



nodobrachiatus. Hall, 1861, Desc. New 

 Crinoidea, Warsaw Gr. [Sig. arms 

 nodose.] 



notabilis. Meek & Worthen, 1869, Proc. 

 Acad. Nat. Sci. Phil., Burlington Gr. 

 [Sig. noteworthy, extraordinary.] 



orbicularis. Hall, 1861, Desc. New Crin- 

 oidea, Keokuk Gr. [Sig. orb-shaped.] 



penicillus. Meek & Worthen, 1869, Proc. 

 Acad. Nat. Sci. Phil., Burlington Gr. 

 [Sig. a little brush.] 



ramulosus. Hall, 1861, Desc. New Crinoi- 

 dea, Burlington Gr. [Sig. full of little 

 branches.] 



randolphensis, Worthen, 1873, Geo. Sur. 

 111., vol. 5, Chester Gr. [Ety. proper 

 name.] 



robustus. Hall, 1861, Desc. New Ormoi- 

 dea, Keokuk Gr. [Sig. robust.] 



rudis, Meek & Worthen, 1869, Proc. 

 Acad. Nat. Sci. Phil., Burlington Gr. 

 [Sig. rude, rough, coarse.] 



rusticellus, White, 1863, Proc. Bost. Soc. 

 Nat. Hist., vol.7, Burlington Gr. [Sig. 

 a little rough, rustic] 



scalaris. Meek & Worthen, 1869, Proc 

 Acad. Nat. Sci. Phil., Burhngton Gr. 

 [Sig. resembling a ladder.] 



scoparius. Hall, 1858, Geo. Eep. Iowa, 

 Kaskaskia Gr. [Sig. a sweeper.] 



simplex, Hall, 1858, Geo. Rep. Iowa, Bur- 

 lington Gr. [Sig. simple.] 



spinobrachiatus, Hall, 1861, Desc. New 

 Crinoidea, Burlington Gr. [Sig. 

 spiny-armed.] 



striatus, Meek & Worthen, 1869, Proc. 

 Acad. Nat. Sci. Phil., Burlington Gr. 

 [Sig. striated.] 



subcarinatus, Hall, 1863, Crin. Wav. 

 Sands. Ohio, Waverly Gr. [Sig. some- 

 what keeled.] 



subtortuosus. Hall, 1863, Crin. Wav. 



Sands., Waverly Gr. [Sig. somewhat 



twisted.] 

 tenuidactylus. Meek & Worthen, 1865, 



Proc. Acad. Nat. Sci. Phil., Burlington 



Gr. [Sig. slender-fingered.] 

 tethys. Meek & Worthen, 1869, Proc. 



Acad. Nat. Sci. Phil., Burlington Gr. 



[Ety. mythological name.] 

 tortuosus, Hall, 1861, Desc. New Crin- 

 oidea, Burlington Gr. [Sig. twisted.] 

 unicus. Hall, 1861, Desc. New Crinoidea, 



Keokuk Gr. [Sig. unique.] 

 wachsmuthi, Meek & Worthen, 1861, 



(Poteriocrinus wachsmuthi) Proc. 



Acad. Nat. Sci. Phil., Burlington Gr. 



[Ety. proper name.] 

 whitii. Hall, 1861, Desc. New Crinoidea, 



Burlington Gr. [Ety. proper name.] 

 ScHizocRiNus, Hall, 1847, Pal. N. Y., vol. 1. 



[Ety. schiza, a cleft, in allusion to the 



cleft or double interscapular plates; 



krinon, a lily.] 

 nodosuB, Hall, 1847, Pal. N. Y., vol. 1, 



Trenton Gr. [Sig. knobbed.] 

 striatus. Hall, 1847, Pal. N. Y., vol. 1, 



Trenton Gr. [Sig. striated.] 

 ScH/ENASTER, Meek & Worthen, 1866, Geo. 



Sur. 111., vol. 2. [Ety. schoinos, a rope ; 



aster, a star.] 

 fimbriatus. Meek & Worthen, 1860, (Pal- 



seasterina fimbriatus,)Proc. Acad. Nat. 



Sci. Phil., St. Louis Gr. [Sig. fringed.] 

 wachsmuthi. Meek & Worthen, 1866, 



Proc. Acad. Nat. Sci. Phil., Burling- 

 ton Gr. [Ety. proper name.] 

 ScYPHOCRiNUS, Hall, 1847, Pal. N. Y., vol. 1. 



[Ety. scyplios, a little cup; krinon, a 



lily.] 

 heterocostahs. Hall, 1847, Pal. N. Y., 



vol. 1, Trenton Gr. [Ety. heteros, ir- 



regalar; costalis, ribbed.] 

 Spha^ocrinus, Meek & Worthen, 1866. The 



name was preoccupied by Eoemer, 



and the authors substituted Coelocrinws 



for it. 

 SpHiEKOC-^gTiTBS, Hall, 1859, Pal. N. Y., vol. 



3. [Ety. sphaira, a sphere from the 



spheroidal form of the body ; kustis, a 



bladder.] 

 multifasciatus, Hall, 1859, Pal. N. Y., 



vol. 3, Low. Held. Gr. [Sig. many 



banded.] 

 Steganocrinus, Meek & Worthen, 18 66, 



Geo. Sur. 111., vol. 2. [Ety. steganos, 



covered; krinon, a, lily. 1 

 araneolus. Meek & Worthen, 1860, (Acti- 



nocrinus araneolus) Proc. Acad. Nat. 



Sci. Phil., Burlington Gr. [Sig. a 



small spider.] 

 pentagonus. Hall, 1858, (Actinocrinus 



pentagonus) Geo. Sur. Iowa, vol. 1, pt. 



2, Burlington Gr. [Sig. pentagonal.] 

 Sten ASTER, Billings, 1858, Can. Org. Rem., 



Decade 3. [Ety. stenos, narrow, in al- 

 lusion to the contracted body ; aster, a 



star.] 



