MR. G. 8. BRADY ON THE ECHINODERMATA. 287 
SPATANGUS PURPUREUS, Miller. 
Very abundant on a fine oozy bottom in 25-85 fathoms, 50-80 © 
miles east of Tynemouth: much less plentiful in similar depths 
northwards. Many of the specimens were much infested with 
the little parasite Montacuta substriata. 
Brissus LYRIFER, Porbes. 
Not so abundant as the preceding or the following species, 
but taken pretty plentifully in the same locality. Many of the 
specimens exceeded two inches in length. 
Ampuipotus rosnus, Forbes, 
This species occurred in considerable numbers, associated with 
the two preceding. The specimens were, when first taken, of a 
pale primrose colour, which changed soon after death to a faint 
rosy hue. 
Ocyus tacteus, Forbes and Goodsir. 
One specimen of this species was among the proceeds of the 
first trip. 
Tuyone Fusus, Miiller. 
Several small examples were dredged in the same locality as 
the preceding species. 
THYONIDIUM commuUNE, Forbes and Goodsir. 
One specimen taken from the stomach of a cod on the Dogger 
Bank. 
THYONIDIUM PELLUCIDUM, Vahl. 
Several specimens were dredged off Berwick, adhering to 
stones and to the surfaces of dead shells. 
Pso.us PHANTOPUS, Linn. 
One small specimen was taken in 25-30 fathoms, Berwick Bay. 
