ECHINODERMATA. 



77 



DiCTYOCRiNus, Conrad, 1841, (Dictuocrinites) 



Ann. R*p. N. Y. [Ety. dictyon, a net ; 



krinon, a lily.] 

 squamifer. Hall, 1859, Pal. N. Y., vol. 3, 



Low. Held. Gr. [Sig. scale-bearing.] 

 DoLATOCRiNus, Lyon, 1857, Geo. Sur. Ky., 



vol. 3. [Ety. dolatus, hewn or tooled ; 



hrirum, a lily.] . 

 glyptus. Hall, 1862, (Cacabocrinus glyp- 



tus) 15th Reg. Rep., Ham. Gr. [Sig. 



sculptured.] 

 glyptus var. intermedins. Hall, 1862, 15th 



Reg. Rep. N. Y., Ham. Gr. [Sig. in- 

 termediate.] 

 lacus, Lyon, 1857, Geo. Sur. Ky., vol. 3, 



Corniferous Gr. [Sig. a tub, a vat, a 



basin.] 

 lamellosus, Hall, 1862, (Cacabocrinus 



lamellosus) 15th Reg. Rep. N. Y., Up. 



Held. Gr. [Sig. in very thin plates,] 

 liratus. Hall, 1862, (Cacabocrinus liratus) 



15th Reg. Rep. N. Y., Ham. Gr. [Sig. 



furrowed.] 

 liratus var. multilira, Hall, 1862, Cacabo- 

 crinus liratus var. multilira) 13th Reg. 



Rep. N. Y., Ham. Gr. [Sig. many- 

 furrowed.] 

 marshi, Lyon, 1860, Trans. Am. Phil. Soc, 



Devonian. [Ety. proper name.] 

 speciosus. Hall, 1862, (Cacabocrinus speci- 



osus) 15th Reg. RepiN. Y., Up. Held. 



Gr. [Sig. beautiful.] 

 troosti, Hall, 1862, (Cacabocrinus troosti) 



15th Reg. Rep. N. Y., Ham. Gr. [Ety. 



proper name.] 

 Donacicrinites, Troost. Not defined. 



simplex, Troost. Not defined. 

 DoRYCRiNUS, Roemer, 1853, Wiegm. Arch. 



[Ety. dory, a spear ; krinon, a lily.] 

 canaliculatus, Meek & Worthen, 1869, 



Proc. Acad. Nat. Sci., Burlington Gr. 



[Sig. channeled.] 

 cornigerus. Hall, 1858, (Actinoorinus cor- 



nigerus) Geo. Rep. Iowa, Burlington 



Gr. [Sig. horned.] 

 desideratus. Hall, 1861, (Actinocrinus de- 



sideratus) Desc. New Crinoidea, Bur- 

 lington Gr. [Sig. wished for, desir- 

 able.] 

 divaricatus, Hall, 1860, (Actinocrinus di- 



varicatus) Supp. to Geo. Sur. Iowa, 



Burlington Gr. [Sig. wide apart.] 

 gouldi. Hall, 1858, (Actinocrinus gouldi) 



Geo. Rep. Iowa, Keokuk Gr. [Ety. 



proper name.] 

 kelloggi, Worthen, ]875, Geo. Sur. 111., 



vol. 6, Keokuk Gr. [Ety. proper 



name.] 

 mississippiensis, Roemer, 1853, Arcluv. 



fur Nat., Jahr. 19, Keokuk Gr. [Ety. 



proper name.] 

 mississippiensis var. spiniger. Hall, 1860, 



Supp. to Geo. Sur. Iowa, Keokuk Gr. 



[Sig. spiny.] 

 missouriensis, Shumard, 1858, (Actmo- 



crinus missouriensis) Geo. Rep. Mo., 



Burlington Gr. [Ety. proper name.] 



quinquelobus, Hall, 1860 (Actinocrinus 

 quinquelobus) Supp. to Geo. Rep. 

 Iowa, Burlington Gr. [Sig. flve- 

 lobed.] 



quinquelobus rar. intermedius. Meek & 

 Worthen, 1868, Proc. Acad. Nat. Sci., 

 Burlington Gr. [Sig. intermediate.] 



roemeri. Meek & Worthen, 1868, Proc. 

 Acad. Nat. Sci. Pliil., Burlington Gr. 

 [Ety. proper name.] 



subaculeatus. Hall, 1858, (Actinocrinus 

 subaculeatus) Geo. Rep. Iowa, Bur- 

 lington Gr. [Sig. armed with points 

 somewhat sharjj.] 



subturbinatus. Meek & Worthen, 1860, 

 (Actinocrinus subturbinatus) Proc. 

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

 [Sig. somewhat top-shaped.] 



symmetricus. Hall, 1858, (Actinocrinus 

 symmetricus) Geo. Rep. Iowa, Bur- 

 lington Gr. [Sig. symmetrical.] 



trinodus. Hall, 1858, (Actinocrinus trino- 

 dus) Geo. Rep. Iowa, Burlington Gr. 

 [Sig. three-knobbed.] 



unicornis, Owen & Shumard, 1850, (Acti- 

 nocrinus unicornis) .Tour. Acad. Nat. 

 Sci. Phil., vol. 2, new ser., Burlington 

 Gr. [Sig. single-horned.] 



unispinus, Hall, 186], (Actinocrinus uni- 

 spinus) Desc. New Crinoidea, Bur- 

 lington Gr. [Sig. one-spined.] 

 EcHiNOCYSTiTES. Hall, 1864, 20tli Reg. Rep. 

 N. Y. [Ety. echinos, the sea urchin ; 

 hustis, a bladder.] 



nodosus. Hall, 1864, 20th Reg. Rep. Ni- 

 agara Gr. [Sig. knobbed.] 

 EcHiNO-ENCRiNiTES, Meyer, 1826, Karst. 

 Archiv. Nat., vol. 7. [Ety. ecMiws, the 

 sea urchin; krinon, a lily.] 



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

 Trenton Gr. [Sig. resembling the 

 barnacle Anatifa.] I think this species 

 is not generically distinct from 

 Lppadoc rmu» moori. 



fenestralHs, Troost. Not defined. 

 Echinus drydsnensis, see Eocidaris dryden- 

 ensis. 



gyracanthus, see Tentaculites gyracanth us. 

 Edrioastek, Billings, 1858, Can. Org., Rem. 

 [Ety. edrion, a seat; asto', a star; 

 in allusion to the sessile condition of 

 the species. This name is a substitute 

 for Cyclaster, proposed in 1857, the 

 latter name having been preoccupied.] 



bigsbyi, Billings, 1857, (Cyclaster bigsbyi) 

 Rep. of Progr., Trenton Gr. [Ety. 

 proper name.] 

 Edrioce:nus, Hall, 1859, Pal. N. Y., vol. 3. 

 [Ety. edrion, a seat; krinon, a lily.] 



pocilliformis. Hall, 1859, Pal. N. Y., vol. 

 3, Low. Held. Gr. [Sig. like a Uttle 

 cup.] 



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

 Y., Up. Held. Gr. [Sig. pear-shaped.] 



sacculus, Hall, 1859, Pal. N. Y., vol. 3, 

 Oriskany sandstone. [Sig. a little bag.] 



