ECHINODERMATA. 



perumbrosm, see Strotocrinus perumbro- 

 sus. 



pigtUliformis, see Batocrinus pistilliformis. 



pistillus, see Batocrinus pistillus. 



planobasalis, see Amphoracrinus plano- 

 basalis. 



planodiscus, see Batocrinus planodiscus. 



plumosus, see Glyptocrinus plumosus. 



pocillum, Hall. 1862, 15th Reg. Rep. N. 

 Y., Ham. Gr. [Sig. a little cup.] 



polydaclylm, Schenectady Reflector, 1835, 

 see Mariacrinus pachydactylus. 



precursor, Hall, 1862, 15th Reg. Rep. N. 

 Y., Ham. Gr. [Sig. a forerunner.] 



proboscidialis, Hall, 1858, Geo. Rep. Iowa, 

 Burlington Gr. [Sig. having a pro- 

 boscis]. 



pyriformu, Shumard, see Batocrinus pyri- 

 formis. 



pyriformis var. rudis, Meek & Worthen, 

 1861, Proc. Acad. Nat. Sci. Phil., Bur- 

 lington Gr. [Sig. rough.] 



pyramidatus, Hall, 1858, Geo. Rep. Iowa, 

 Burlington Gr. [Ety. from pyramidal 

 summit.] 



quadrispinus, see Amphoracrinus quadri- 

 spinus. 



quaternarius, Hall, 1860, Supp. to Geo. 

 Sur. Iowa, Burlington Gr. [Sig. con- 

 taining four, quaternary.] 



quaternarius var. spiniferus, Hall, 1861, 

 Desc. New Crinoidea, Burlington Gr. 

 [Sig. spine-bearing.] 



quinquelobus, see Dorycrinus quinque- 

 lobus. 



ramulosus, Hall, 1858, Geo. Rep. Iowa, 

 Keokuk Gr. [Sig. branchy.] 



regalis, see Strotocrinus regalis. 



remibrachiatw, see Batocrinus remibrachi- 

 atus. 



reticulatus, Hall, 1861, Desc. New Crino- 

 idea, Burlington Gr. [Sig. reticulated 

 like net- work.] 



rotundus, Yandell & Shumard, 1855, Geo. 

 Rep. Mo., Burlington Gr. [Sig. 

 round.] 



rudis, see Strotocrinus radis. 



rusticus, Hall, 1861, Desc. New Crinoidea, 

 Burlington Gr. [Sig. coarse, rough.] 



scitulus, Meek & Worthen, 1860, Proc. 

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

 [Sig. handsome, pretty.] 



sculptus, Hall, 1858, Geo. Rep. Iowa, 

 Burlington Gr. [Sig. engraved, sculp- 

 tured.] 



securis, Hall, 1861, Desc. New Crinoidea, 

 Burlington Gr. [Sig. an axe or hatchet 

 with a broad edge.] 



semiradiatus, see Saccocrinus semiradiatus. 



senarius, Hall, 1860, Supp. to Geo. Sur. 

 Iowa, Burlington Gr. [Sig. consisting 

 of six.] 



sexarmatus, Hall, 1860, Supp. to Geo. 

 Sur. Iowa, Burlington Gr. [Sig. six- 

 armed.] 



sillimani, syn. for A. rusticus. 



similis, Hall, 1860, Supp. to Geo. Sur. 

 Iowa, Warsaw Gr. [Sig. similar.] 



zinousus, see Batocrinus sinuosus. 



speciosus, syn. for Strotocrinus regalis. 



spinobrachiatus, see Amphoracrinus spino- 

 brachiatus. 



spinotentaculus, Hall, 1860, Supp. to Geo. 

 Sur. Iowa, Burlington Gr. [Ety. spina, 

 a spine; tentaculm, a feeler.] 



spinulosus, Hall, 1860, Supp. to Geo. Sur. 

 Iowa, Keokuk Gr. [Sig. full of little 

 spines.] 



steropes, Hall, I860, Supp. to Geo. Sur. 

 Iowa, Warsaw Gr. [Ety. mythologi- 

 cal name.] 



subaculeatus, see Dorycrinus subaculeatus. 



subiequalis, see Batocrinus subsequalis. 



subturbinatus, see Dorycrinus subturbi- 

 natus. 



subumbrosus, Hall, 1860, Supp. to Geo. 

 Sur. Iowa, Burlington Gr. [Sig. some- 

 what umbrella-like.] Syn. ~(?) for 

 Strotocrinus liratus. 



subveniricosus, see Physetocrinus subveh- 

 tricosus. 



superlatus, Hall, 1858, Geo. Rep. Iowa, 

 Burlington Gr. [Sig. very wide.] 



symmetrkus, see Dorycrinus symmetricus. 



tenuidiscus, Hall, 1861, Desc. New Crinoi- 

 dea, Burlington Gr. [Sig. slender 

 disc.] 



tenuiradiatus, Hall, 1847, see Palseocystites 

 tenuiradiatus. 



tenuiradiatus, Hall, 1861, Desc. New 

 Crin. Burlington Gr. [Sig. slender- 

 rayed.] 



tenuisculptus, syn. for Actinocrinus sculp- 

 tus.] 



thalia, Hall, 1861, Desc. New Crinoidea, 

 Burlington Gr. [Ety. mythological 

 name.] 



them is, Hall, 1861, Desc. New Crinoidea, 

 Burlington Gr. [Ety. mythological 

 name.] 



thetis, Hall, 1861, Desc. New Crinoidea, 

 Burlington Gr. [Ety. mythological 

 name.] 



thoas, Hall, 1861, Desc. New Crinoidea, 

 Burlington Gr. [Ety. mythological 

 name.] 



tholus, see Strotocrinus tholus. 



tricornis, Hall, 1858, Geo. Rep. Iowa, 

 Burlington Gr. [Sig. three-horned.] 



trinodus, see Dorycrinus trinodus. 



turbinates, see Batocrinus turbinatus. 



turbinatus var. elegans, see Batocrinus tur- 

 binatus var. elegans. 



umbrosii8, Hall, see Strotocrinus umbrosus. 



unicarinatus, Hall, 1860, Supp. to Geo. 

 Sur. low 

 keeled.] 



Sur. Iowa, Keokuk Gr. 



m tc 

 [Sig- 



single 



unicornis, see Dorycrinus unicornis. 



unispinus, see Dorvcrinus unispinus. 



urna, Troost, 1850. Not defined. 



urniformis, McChesney, 1860, New Pal. 

 Foss., Burlington Gr. [Sig. urn- 

 formed.] 



validus, Meek & Worthen; 1860, Proc. 

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

 [Sig. stoutly built.] 



