316 RECENT ADDITIONS TO THE LOCAL MOLLUSCAN FAUNA. 
The same animal, apparently, was taken by Mr. Mugeridge 
and Mr. ©. Spence Bate, in Loughor Marsh, South Wales, in 
1849, similarly associated, and was figured by the latter gentle- 
man in the Report of the Swansea Literary and Scientific Society 
for 1850, where it is named Limapontia nigra. It is, however, 
readily distinguished from that species by its greater size, more 
depressed form, and wider lateral expansion, by the backward 
position of the anus, and the more branched hepatic organ, be- 
sides other minor characters. Mr. Spence Bate’s specimens seem 
to have been nearly twice the length of ours. 
This species comes very near to the Fasciola capitata of Miller, 
perhaps more so than the Limapontia nigra, which has been 
referred to that species hy Professor Lovén; but as Muller had 
not observed the characters by which these two species are more 
especially distinguished from each other (namely, the position 
of the anus and the branching of the liver), we think it better 
to consider our animal as new, than to revive an old name that 
may prove to be erroneous. 
Occurrence of Antiopa cristata on the Durham Coast. By 
George S. Brady. 
I was fortunate enough to take a single specimen of this 
beautiful nudibranchiate mollusc, while dredging off Ryhope, 
in July last. It occurred on a rocky bottom about six miles from 
land, and in thirteen fathoms water. This, I believe, is the first 
recorded occurrence of the genus Antiopa in our district 
Occurrence of Limax gagates, near South Shields. By 
Richard Howse. 
Two or three years ago I found a smali slug infesting some 
of the gardens of this neighbourhood, which I referred to the Z. 
Sowerbii, Fer. On forwarding some of them, a short time since, 
to my friend Mr. Alder, he kindly informed me that they were not 
L. Sowerbii, but the rarer L. gagates, and that the species had 
not before been taken in the North of England. 
Most of the specimens obtained have been procured from a 
small garden, where it has occurred in very great abundance, as 
certainly not less than 200 specimens have been collected during 
