. LEP.] 



ECHINODERMA TA. 



257 



tudinally, five partite, and corrugated 

 transversely ; column sharply pentag- 

 onal. Type I. subcrassus. 

 crassus, Meek & Worthen, 1865, (Hete- 

 rocrinus crassus,) Proc. Acad. Nat. Sci. 

 Phil., p. 147, and Geo. Sur. 111., vol. 3, p. 



325, Hud. Eiv. Gr. 

 polyxo, syn. for I. sub- 



KIG. 346.- locri- 

 n us subcrassus. 



subcrassus, Meek & Wor- 

 then, 1865, (Heterocri- 

 nus, subcrassus,) Proc. 

 Aead. Nat. Sci. Phil., p. 

 148, and Geo. Sur. 111., j 

 vol. 3, p. 325, Hud. 

 Eiv. Gr. 



trentonensis, Walcott, 1884, 

 35th Rep. N. Y. St. Mus. 

 Nat. Hist., p. 210, Tren- 

 ton Gr. 



LAMPTEROCRINUS, Roemer, 

 1860, Sil. Fauna West 

 Tenn., p. 37. [Ety. lamp- 

 ter, lamp; krino'n, lily. 

 Calyx urn-shaped, con- 

 tracted between the arm- 

 bases, and bulged out on 

 the azygous side; basals 

 5 ; subradials 5 ; primary 

 radials 3x5; secondary radials, 1 x 10; 

 interradials 8 or 10, graduating into the 

 vault ; azygous interradials more numer- 

 ous; vault unsymmetrical, and bearing a 

 subct-ntral proboscis or veniral sac; arms 

 unknown. Type L. tt-nnesseensis. 

 inflatus, Hall, 1861, (Balanocrinus in- 

 flatus,) Rep. of Progr. Sur. of Wis., p. 

 22, and 20th Rep. N. Y. St. Mus. Nat. 

 Hist., p. 328, Niagara Gr. 

 parvus, Hall, 1879, Desc. New Spec. Foss., 

 p. 9, and llth Rep. Geo. Nat. Hist. 

 Ind., p. 272, Niagara Gr. 

 sculptus, syn. for L. tennesseensis. 

 ten nesseensis, 

 Roemer, 

 1860, Sil. 

 Fauna West 

 Tenn., p. 37, 

 Niagara Gr. 



L K C A N OCRINUS, 



Hall, 1852, 

 Pal. N. Y., 

 vol. 2, p. 199. 

 [Ety. lekane, 

 basin; kri- 

 non, lily.] 

 Body and 

 arms subglo- 

 bose ; plates 

 heavy ; ba- 

 sals 3 ; subra- 

 dials 1x5; 

 primary ra- 

 dials 2 or 

 3x5; sec- 

 ondary r a - 

 dials 1 to 3x10; azygous interradials 

 2 ; arms as in Ichthyocrinus ; column 

 round. Type L. macropetalus. 



FIG. 347. Lampterocriuus 

 tennesseensis. 



FIG. 348. Lecanocrinus 

 macropelalus. 



caliculus, Hall, 1852, Pal. N. Y., vol. 2, 



p. 203, Niagara Gr. 

 elegans, see Taxocrinus elegans. 

 excavatus, Ringuebtrg, 1886, Bull. Buf. 

 Soc. Nat. Sci., vol. 5, p. 11, Niagara Gr. 

 incisus, Ringueberg, Bull. Buf. Soc. 



Nat. Sci., vol. 5, p. 10, Niagara Gr. 

 Isevis, see Taxocrinus hevis. 



macropetalus, Hall, 

 1852, Pal. N. Y., 

 vol. 2, p. 199, Ni- 

 agara Gr. 



nitidus, Ringue- 

 berg, 1886, Bull. 

 Buf. Soc. Nat. 

 Sci., vol. 5, p. 9. 

 Niagara Gr. 

 ornatus, Hall, 1852, 

 Pal. N. Y., vol. 

 2, p. 201, Ni- 

 agara Gr. 



pusillus, Hall, 1863, 

 (Cyathocrinus 

 pusillus,) Trans. Alb. Inst., vol. 4, p. 200, 

 and llth Rep. Geo. and Nat. Hist. Ind., 

 p. 267, Niagara Gr. 

 pusillus, Winchell & Marcy, syn. for L. 



pusillus. 



puteolus, Ringueberg, 1886, Bull. Buf. 



Soc. Nat. Sci., vol. 5, p. 11, Niagara Gr. 



simplex, Hall, 1852, Pal. N. Y., vol. 2, p. 



202, Niagara Gr. 

 solidus, Ringueberg, 1886, Bull. Buf. Soc. 



Nat. Sci., vol. 5, p. 8, Niagara Gr. 

 LECYTHIOCRINUS, White, 1880, Proc. U. S. 

 Nat. Mus., vol. 2, p. 257. This name 

 was preoccupied by Muller in 1858, 

 and by Zittel in 1879. See Menocrinus. 

 adamsi, see Menocrinus adamsi. 

 olliculiformis, see Menocrinus olliculi- 



formis. 



LEPADOCRINUS, Conrad, 

 1840, (Lepocrinites,) 

 Ann. Rep. N. Y., p. 

 207. [Ety. from the 

 resemblance to the 

 Lepas or Barnacle An- 

 atifa ; krinon, lily.] 

 Body oblong or ovoid, 

 consisting of four 

 series of plates ; first 

 series 4 ; second series 

 5; third series 4; 

 fourth series 5; pec- 

 tinated rhombs 3 to 5 ; 

 arms 3 or 4, recum- 

 bent, and consisting 

 of a double series of 

 interlocking plates, 

 resting, in shallow 

 grooves ; plates porif- 

 erous, column taper- 

 ing. Type L. geb- 

 hardi. 



gebhardi, Conrad, 1840, FIG. 349. Lepado- 

 (Lepocrinites g e b - crlnus gebbardi. 

 hardi,) Ann. Rep. N. Y., p. 207, and 

 Pal. N. Y., vol. 3, p. 127, Low. Held. 

 Gr. 



