ANOMIA. 331 



beyond the shell, and on the inner circle, there are long 

 and short cilia of the same colour, but distributed irre- 

 gularly ; the general colours of the marginal area of the 

 fringes are a mixed blotchy red, yellow or purplish brown. 

 No ocelli can be detected. 



" There are a pair of circular branchice, varying from 

 pale-red to dark-brown, on each side the body which is very 

 small, with very fine longitudinal and transverse vessels ; 

 the plates of each pair have part of their outer surfaces 

 doubled on them, thus forming circular open pouches. 



" The oval margined mouth, with its large aperture, is 

 placed very high up in the dorsal ranges, and has around 

 it two plain linear membranes, which are continuations 

 of the branchise, which at this point have become atte- 

 nuated; these laminae expand at each side the mouth, into 

 two pair of long very delicate labia, fixed by the entire 

 length of the longest sides, folding on each other, and 

 have the finest striae on both surfaces : the colour varies 

 from light to dark brown. 



" The foot is almost reduced to nothing, it is fixed to 

 the body under the mouth, and is a small yellow obtuse, 

 subcylindrical, deeply grooved pendulous body. 



" The ovarium is an extensive inflated sinuated lobe, 

 originating on each side the liver, coasting around the 

 body, part thereof being glued to the lower portion of 

 the mantle ; this organ has been mistaken for a large 

 foot, but its soft milky composition of separate granules, 

 show that it is the organ of reproduction, and the milky 

 humour mixed amongst the granules, which appear to 

 spring from pyriform membranes, is probably the fecund- 

 ating fluid. 



" The ovarium varies greatly in colour, 'from deep ver- 

 milion to quite white. 



