THE 
GENERA AND SPECIES 
OF 
BLASTOIDEA. 
ACENTROTREMITES, R. Etheridge fil. & P. H. Carpenter, 
1883, Ann. Mag. Nat. Hist. (5)xi, p. 232; and 1886, Cat. Blastoidea 
Brit. Mus. p. 234. Type-species— A. ellipticus. 
Acentrotremites ellipticus. Mitra elliptica , G. Cumberland, 1826, 
Reliquiae Conservatae, p. 33, pi. B [not A, as stated in text], ff. 1-3 
(middle group). Acentrotremites ellipticus (Cumberland): R. Etheridge fil. 
& P. H. Carpenter, 1883, Ann. Mag. Nat. Hist. (5) xi, p. 233; and 1886, 
Cat. Blastoidea Brit. Mus. p. 235 ; and pp. 158, 237, where they consider 
it a possible syn. of Pentremite globosa , Say (q. v.). 
Acentrotremites ellipticus (Cumberland) : R. Etheridge fil. & P. H. 
Carpenter, 1886, Cat. Blastoidea Brit. Mus. pp. 12, 93, 108, 235, 
pi. xiii, ff. 17,18, 19 ; and E. A. Bather, 1899, in Lankester’s Zoology, 
Cap. Blastoidea, f. xiii. Lower Carboniferous Limestone : Somerset, 
England. [E. 782.] 
Acentrotremites sp., Etheridge & Carpenter, 1883 : v. Meso- 
blastus rofei [E. 783]. 
Asterial Fossil, J. Parkinson, 1808 : v. Pentremites godoni, et 
P. godoni, var. florealis. 
Asterite from Kentucky, S. L. Mitchill, 1818: v. Pentremites 
godoni. 
ASTEROBLASTUS, E. von Eichwald, 1862, Bull. Soc. ge'ol. 
Erance (2) xix, p. 62. Asteroblastus , Eichwald : E. Schmidt, 1874, 
Mem. Acad. Imp. Sci. St. Petersbourg (7) xxi, No. 11, p. 29. Astero- 
cystis nov. gen. et Asteroblastus , Eichwald: E. Haeckel, 1896, Eestschr. 
fiir Gegenbaur, i, pp. 116, 117. Type-species— A. stellatus . 
JB 
