CRINOIDEA. 
Bek, 95 
t Austinocrinus erclcerti , see Balanocrinus. 
t Bactrocrinus : genus maintained, systematic position; type B.fusifoi'mis, 
Schnur ; Bather (ll) pp. 101-104. 
\ Baer ocrinus , morphology ; op. cit. p. 21. 
t Balanocrinus : — B. erckerti , Dames, Tertiary ?, Turkestan, columnals 
only; Romanovskii (223) p. 85. B. sigmaring ensis , Quenst.; Greppin, 
Abh. Schweiz, pal. Ges. xx, p. 100. 
B. africanusy Senonian, Tunis, stem only; Loriol (153) p. 391, n. sp. 
iBargcrinuSy independence questioned ; Bather (11) p. 116. B. sculp - 
tility Hall, now first figured ; Whitfield (271) p. 29. 
B. formosusy Keokuk Group, Indiana, Miller & Gurley, Bull. 111. Mus. 
iii, p. 33 ; B. stellifevy Keokuk Group, Harrison co., Indiana, Miller, 
Pal. Indiana, 1892, p. 46 : n. spp. 
Bathycrinus , orientation of stem ; Bather (11) p. 44. B. carpenteri , 
Dan. & Kor. sp., complete anatomical and histological description ; 
Danielssen (61). 
+ Batocrinus , stem ; Agassiz (2) p. 62. B. cequibi'achialus , var. alatus , 
Hall, now first figured, distinguished from B. cequibrachiatus , McChes., 
and compared with B . asterisens ; B. asteriscusy M. & W. ; Whit- 
field (271) p. 11. B. clypeatusy Hall; Whitfield (271) p. 16. 
B. icosidactylus and B. irregularhy translation of the original descrip- 
tion by Casseday, 1854 ; Miller, Pal. Indiana, 1892, p. 23. B. in- 
ornatus, Hall, now first figured and distinguished (?) from B. clypeatuSy 
p. 15 ; B. laura , Hall, p. 17, B. lepidus, Hall, p. 16, both now first 
figured ; B. oblatus, Hall, now first figured, but referred (?) to B. 
rotunduSy Yand. & Sh., p. 12 ; Whitfield (271). 
B. cequabilis , p. 25, altiusculus, p. 20, aspratilis , p. 21, Burlington Group, 
Missouri, Miller & Gurley, Bull. 111. Mus. iii ; B. bisbrachiatusy 
Burlington Limestone, Iowa, Whitfield, Mem. Amer. Mus. Nat. 
Hist, i, p. 14 ; B. blairi, p. 39, brittsi , p. 33, compariliSy p. 32, Bur- 
lington Group, Sedalia, Mo., B. decrepitus , p. 34, Keokuk Group, Mont- 
gomery Co., Ind., divaliSy Keokuk Group, Boonville, Mo., p. 22, 
Miller, Pal. Indiana, 1892 ; B. laetus } Burlington Group, Missouri, 
p. 24, lyonanus , St. Louis Group, Kentucky, p. 18, scyphuSy Burling- 
ton Group, Missouri, p. 23, Miller & Gurley, Bull. 111. Mus. iii ; 
B. shepardiy Burlington Limestone, Springfield, Mo., Rowley, Amer. 
Geol. xii, p. 305 : n. spp. 
t Belemnocrinus, morphology ; Bather (11) p. 21. 
-j - Blair ocrinus : — B. sp.; Rowley (227) p. 50. 
B. arrosus and B. bullatusy Chouteau Limestone, Sedalia, Mo., Miller, 
Pal. Indiana, 1892, p. 41 ; B. spinosulus, Chouteau Limestone, Mis- 
souri, Miller & Gurley, Bull. 111. Mus. iii, p. 28 : n. spp. 
BotryocriniteSy defined ; Bather (11) p. 114. 
\Botry ocrinus , rediagnosed, but independence questioned, pp. 114 & 116 ; 
B. coralluniy Ang., considered as young of B. ramosissimus, p. 117 ; 
B. crassusy Whiteaves sp., p. 103 ; B. cucurbitaceus, Ang. sp., rediag- 
nosed, true structure of arms and anal tube described, p. 120 ; 
