50 
The Garfish; Belone vulgaris, rare. 
The Grey Gurnard; Trigla guvnardus, 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 
Gardium edule, TuTritella communis, Mytilus eduUs, and 
otherS; should be excessively scarce; whilst such species as 
Cyprcm Europoca, Patella pellucida, Tellma fabula, T. 
tenuis, Cyprina Islandica, Mactra stidtorum, Pecten maxi- 
mus, and Littorinse 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 Eissoa 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 Corhula, Psammohia, Dentalium, 
Turritella (only two); Chemnitzia, Troplion, and Cylichna. 
Amongst the fresh species there are none that occur 
abundantly; but Pecten pusio, Cyprina, Scaphander, 
Ceratisolen, Crenella, Adeorhis, 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. 
