118 Mr. C. Spence Bate on Crustacea. 
of these were furnished with spawn, and two of the others were 
found in the stomach of a codfish. That which was obtained 
off the Mewstone was 44 inches long, and one of the most in- 
teresting additions to our local fauna: this length is half as 
long again as that recorded by M. Milne-Edwards of the Medi- 
terranean specimens. 
In the dredging-list published by the British Association, 
the common lobster of Europe is called Astacus gammarus (L.), 
marinus (Fabr.), and Homarus vulgaris (M.-Edwards). But, 
since the descriptions of Crustacea by Linneus are so very 
general, and the specific name used by him has been long 
closely associated with that of a very distinct genus, we think 
that of Fabricius, the next in succession, should be adopted. 
Again, the generic name, given by Fabricius, of Astacus, 
although prior to all others, yet included the freshwater genus, 
with which it is so closely associated as to make an exchange 
inconvenient. I therefore propose, in accordance with the 
rules laid down by the Association, to retain the generic name 
of M. M.-Edwards and the specific name of Fabricius, and 
call it Homarus marinus, Fabr. 
We cannot turn away from this species without noticing the 
manner in which the process of repair is carried on in the de- 
velopment of a new flagellum to the inferior pair of antennee. 
Mr. Lloyd, Conservator of the Marine Zoological Collection at 
Hamburg, to whom we are indebted for the preparation from 
which fig. 4 in Pl. XI. is taken, writes to me :—‘‘ The animal 
lost the antenna by accident, just where the juncture with the 
peduncle takes place, and then the antenna began to grow in 
a spiral case, the spiral growing larger and increasing the 
number of its turns as it grew older, but never getting hard 
or coloured. When the entire exuviation of the lobster took 
place (in about four months after the antenna was broken off), 
the antenna was drawn out of its special case and came forth 
straight, the spiral skin retaining its shape. Hardening of the 
antenna does not take place (or at least it does not appear 
hard) till after exuviation, and in like manner the limbs of all 
the lobsters here which renew their limbs.” 
A specimen of the genus Aaius was taken by Mr. Couch off 
Polperro, and described by him as new, in the ‘ Zoologist,’ 
1856, pp. 52-82; but I am not aware that it has been since 
met with. 
I have taken what I believe to be specimens of Crangon 
fasciatus and Cr, sculptus; and a careful comparison of them 
with the descriptions and figures of the authors has failed to 
convince me that they are not more or less spinous varieties 
of the same species; and in character they agree so well 
