278 
GAMMAR1D.E. 
a few short spines. The central caudal-plate is long, 
narrow, and lanceolate. 
The specimen from which our description and figure 
are taken was captured by Mr. Gosse, at Ilfracombe, and 
kindly sent to us. At first we took it for a young 
animal belonging to the genus Microdeutopus ; but 
closer examination having convinced us of the dis- 
tinction, we have named the animal specifically after the 
genus it so much resembles. 
We have recently received other specimens of this 
species from the Shetlands, where they were taken by 
the Rev. Mr. Norman. 
