DR. W. C. M'INTOSH ON THE HAIRS OF CARCINUS MJENAS. 
View of the posterior part of one of the hairy ridges on the floor of the stomach, exhibiting the 
origin of the hairs from the horny matrix, together with an area of finely dotted cells and a 
portion covered with spikes above. 
. Pectinate arrangement of the external hard layer of the eminence at the posterior part of the 
' stomach. | 
. Termination of one of the horny bars of the same posteriorly, in a diverging crest of fibres. 
. Tip of one of the branchial hairs, with a fungoid tuft at its extremity. 
. Hair from a branchial process, with the parasitic zoophyte attached; the latter is somewhat out 
of focus, 
. A small portion of the parasitic zoophyte (?) from the base of a branchial hair. 
. Outline of one of the free ciliated bodies found in the same region. 
- Two hairs, from the internal abdominal foot of an egg-bearing female, imbedded in the tough 
secretion which forms the pedicles for the eggs. A portion of a ruptured capsule is attached 
to one of the pedicles. 
. Àn ovum and its pedicle. 
. Portion of cuticle from the postero-lateral part of the soft or new carapace, in a specimen with 
the old shell still adhering. 
. Extremity of the posterior clasper ; from a soft Crab. ` 
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