OF NORTHUMBERLAND AND DURHAM. 361 
PLEUROTOMA NEBULA, Mont. 
Murex nebula, Mont. Test. Brit. 267. 
New to our coast. We got three living specimens, 
PLEUROTOMA BRACHYsTOMA, Phil. 
Pleurotoma brachystomum, Phil., Enum. Moll. Sic., v. 2, 
p. 169. 
Mangilia tiarula, Lovén, Ind. Moll. Scand. 14. No. 97. 
This is one of the rarities lately added to the British 
Fauna from the enterprising dredging excursions of Mr. 
Barlee, Mr. M‘Andrew, &c., in the north and west of 
Scotland. Its occurrence on this coast makes an interesting 
addition to our local list. Three specimens were found. 
TRICHOTROPIS BOREALIS, Sow. Some good specimens were 
obtained. 
CuITON HANLEYI, Bean. We got a single specimen of this rare 
Chiton which was originally found at Cullercoats in 1837. 
Mop1I0oLA PHASEOLINA, Phil. 
Modiola phaseolina, Phil., Enum. Moll. Sic., v. 2., p. 51, 
t. xv., f. 14. 
Several living individuals of different ages were obtained. 
This species had been already observed on our coast by 
Mr. King and Mr. Howse, who had obtained specimens 
from the deep-water fishing boats. 
Lepron convexum, Alder. I ventured to describe this species 
in our Catalogue from a single valve found in sand. We 
have now been so fortunate as to obtain by dredging two 
or three perfect specimens and several odd valves. The 
minute puncturing of the surface does not appear to be 
constant in the species. A few had the punctures ex- 
tending over half the shell, and some were entirely plain. 
It is possible, therefore, that this may prove to be identical 
with the little-known Lepton nitidum of Turton. The 
surface is beautifully iridescent when fresh. The largest 
specimens measured 3th of an inch across. 
Ne@RA cusPIpATA, Olivi. One living example was got. 
PLEUROTOMA TERES, Morbes. Two or three additional examples 
of this fine and rare species were obtained. 
