70 
THE SPECIES OF BLASTOIDEA. 
[Zygocrinus benniei, continued.] 
-. Lower Carboniferous, Carboniferous Limestone, Shale over No. 2 
Limestone : Skateraw, near Dunbar, Scotland. [E. 1111.] Presented 
by J. Bennie. Eour specimens. 
-. Lower Carboniferous, Carboniferous Limestone, Shale over No. 2 
Limestone: Kidlaw, Haddingtonshire, Scotland. [E. 1112.] Pre¬ 
sented by J. Bennie. Seven specimens. 
-. Lower Carboniferous, Carboniferous Limestone, Shale over No. 2 
Limestone : Carlops Quarry, Peebleshire, Scotland. [E. 1378.] 
In exchange from Geol. Survey, Scotland. Twenty-one specimens. 
Zygocrinus tetragonus. Astracrinites tetragonus, nom. nud., T. & 
T. Austin, 1842, Ann. Mag. Nat. Hist. (1) x, p. 110. Astrocrinites 
tetragonus , T. & T. Austin, March 1843, Ann. Mag. Nat. Hist. (1) xi, 
p. 206. Zygociinus tetragonus (Austin) : H. G. Broun, 1848, Index 
Pal., Nomenclator, p. 1381. Astrocrinus tetragonus , Austin : R. Ethe¬ 
ridge hi. & P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. p. 300. 
Astrocrinus tetragonus , Austin: R. Etheridge hi., 1876, Quart. Journ. 
Geol. Soc. xxxii, pp. 109, 114, pi. xiii, f. 26; and R. Etheridge hi. & 
P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. pp. 26, 300, pi. xx, 
if. 1, 2. Lower Carboniferous, Carboniferous Limestone: Yorkshire, 
England. [75995.] Specimen identified and presented by Major 
Austin. 
Astrocrinus tetragonus , Austin: R. Etheridge hi. & P. H. Carpenter, 
1886, Cat. Blastoidea Brit. Mus. p. 300. Lower Carboniferous, 
Carboniferous Limestone: Settle, Yorkshire, England. [E. 850.] 
A perfect theca. 
PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 
