GLYMNOSOMATOUS PTEROPODA 
401 
course, is to carry one"s daim to an extreme. It is quite 
évident that the type here described is not a larva of Clione 
with which it ocours, but is an adult type worthy of generic 
distinction. The generic description of Eschscholtz agréés 
as far as it goes, but bis description is very incomplète. 
Trichocycliis hansineènsis stands near Clione kincaidi because 
of its ciliated grooves, shape of the body, foot, and absence 
of gills; it stands near Clionopsis bècause of its rudimentary 
proboscis. 
