HEALDIIDAE Harlton 1933,p.e26, a Family to include Healdia, 
Seminolites, Cavellina. This family placed in 
Platycopa by Triebel 1950b,p.117, and by Hennings- 
moen 1953,pe259-261, who places here Healdia, 
Cavellina, Ponderodictya, Healdioides, and 
possibly here: Cribroconcha, Incisurella, Para- 
cavellina, Platychilella, Seminolites, Sulcella, 
Tetratylus. 
HEALDIINAE P¥ibyl and Snajdr 1950,p.125,168, a subfamily 
of Bairdiidae for the genus Healdia. 
HEALDIOIDES [H. diversus] Coryell and Rosanski 1942,p.1h8 
[Healdiidae by C&R; Bairdiidae by Agnew 192, 
p.758; Healdiidae by Henningsmoen 1953,p.261] 
Mississippian of Illinois. 
HEMIAECHMINOIDES {He monospinus] Morris and Hill 1952,p.7, 
8 [Aparchitidae by M&H; Beyrichiacea of uncertain 
family by Henningsmoen 1953,p.e273- Silurian, 
Tennesseee 
HEMICYPRIS [3 species: He. pyxidata (Moniez); H. ovata Sars; 
H. megalops Sars] Sars 1903,p.24 [all 3 species = 
Cyprinotus by Muller 1912; the first and last = 
Heterocypris by Klie, 1932,p.e471; 1938,p.23.] 
The first species which appears to have been the 
one Sars intended as most characteristic was from 
Sumatrae 
88 
