(error pro Selenites Fischer 1877) Ancey 1880, 
fide Neave 1939,vol.4,p.194]. 
SIMPLICES Jones 1855a,p.85, a Group of species of the genus 
Beyrichia. 
SINUSELLA [S. ignota] Spizharsky 1939,p.195 [Kirkbijidae 
(=Kirkbyidae) by Spizharsky; attributed in error 
to Lutkevich by Agnew 1944,p.219] Permian, USSR. 
Spizharsky indicates after the name: "in litt." 
so this may not be the original reference. 
SIPHLOCANDONA [S. similis (Baird) (Candona similis Baird 
1846 ,p.415,pl.9,f.4), and Se normani, nespe-] 
Brady 1910,p.210 [Cypridae-Candoninae by Brady] 
Recent, England. 
SIPHONOSTRA [Cypridina (Siphonostra) spinifera] Skogsberg 
1920,p.298 [as subgenus of Cypridina by Skogsberg] 
Recent, off Australia. 
SPHAEROMICOLA [S. topsenti] Paris 1916,p.307-309 [Cytheridae-- 
Entocytherinae by Hoff 1942b,p.65] Commensal on 
gills of Isopods and Amphipods, Europe. 
SPHENICIBYSIS [S. hypoderota ] Kesling 1952a,p.2h [Leper- 
ditellidae by Kesling; ?Aparchitidae by Hennings- 
moen 1953,p.268] Devonian, Michigan. 
175 
