Orthography of Names of the Naiades. 243 
mediastinum, 
apicellatum, 
schomburgkianum, 
murinum (see Errata, Sy- 
nopsis, p. vill) 
Ctenodesma (neu.). 
borneense. 
Tetraplodon (mas.). 
quadrilaterus. 
Castalina (fem.). 
psammeeca. 
Diplodon (mas.). 
rhyaccecus, 
wagnerianus, 
sethiops piricicabanus, 
demerarensis, 
hyleeus. 
Spatha (fem.). 
wahlbergi bourguignati. 
Monocondylza (fem.). 
inermis. 
Glabaris (fem.). 
patagonica. 
- felix, 
crassa, 
rubicunda, 
rotunda, 
membranacea, 
crispata, 
philippiana, 
luteola, 
schomburgkiana, 
cylindracea, 
puelchana, 
limnceca, 
lucida, 
trautwiniana, 
trapezialis, 
4 anserina, 
exotica, 
scripta, 
moretoniana, 
cygneeiformis. 
radiata, 
simpsoniana, 
sinuosa, 
glauca, 
e sinaloensis, 
umbonata, 
jewettiana, 
forbesiana, 
trigona, 
elongata, 
lingulata, 
mortoniana, 
longina, 
leotaudi, 
tenebricosa, 
pastasana, 
schroeteriana, 
obtusa, 
liturata, 
falsa. 
