50 
The Garnsh ; Belone vulgaris, rare. 
The Grey Gurnard; Trigla gurnardus, is common with 
the Piper Gurnard all the summer. 
The additions to the former list of mollusca made during a 
long visit have been sixty-two *specieS; making a list of one 
hundred and forty-one species. It is remarkable that 
although the sandy shores about Cymmeran and Aberffraw 
bays are both extensive and level between high and low 
tidal marks, such well-known common species as 
Carclium edule, TurriteUa communis, Mytilus edulis, and 
others, should be excessively scarce, whilst such species as 
Cyprcea European, Patella pellucida, Tellina fabula, T. 
tenuis, Cyprina Islandica, Mactrcc stultorum, Pecten maxi - 
mus, and Littoringe should be fairly abundant, if not quite 
common. 
The small species of Rissoa Odostomia, Skenea, and 
Mangelia, occur in great numbers, the sand in places being 
almost made up of these shells, mixed with Entomostraca, 
Serpulse, comminuted shells, and crustacean claws. The 
varieties of Rissoa parva, costata and striata are endless, 
and it would be easy to multiply species of this genus, and 
also of Skenea, if only extremely marked or smooth speci- 
mens were regarded. 
In my former list are many species which were called 
rare, as only one or two specimens or even a single valve 
had been found in 1874, or at Easter of 1875. In some 
cases this rarity has been proved by not finding additional 
specimens this summer, asin Corbula,Psammobia, Dentalium, 
TurriteUa (only two), Ciiemnitzia, Trophon, and Cylichna. 
Amongst the fresh species there are none that occur 
abundantly, but Pecten pusio, Cyprina, Scaphander , 
Ceratisolen, Crenella, A deorb is, Kellia, and Assiminea are 
found in fair numbers between high and low tidal marks. 
The rock-borers and tunicata have had but cursory attention 
paid to them at present. 
