112 CHAS. L. WALTON. 



Hippolyte varians, Leach. Aberystwyth. (C. L. W. ; H. J. F.) 



Athanas nitescens, Leach. Occasional, Aberystwyth. 



Axius stirliynchus, Leach. One specimen, March 24th, 1909, at extreme 

 low water, Aberystwyth, in a handful of gravelly sand. Kept in 

 confinement in a glass vessel with a little sand, it kept the water 

 turbid by constant m.ovement of the swimmerets. The identifica- 

 tion was confirmed by Canon A. M. Norman. 



Homarus vulgaris, Milne-Edwards. Sometimes found at low-tide mark 

 on rocky shores. (C. L. W.) 



Oalathea squamifera. Leach. Aberystwyth. In sheltered areas not 

 subject to severe wave action. Generally in early summer, but 

 appearance very erratic ; sometimes abundant, at others rare or 

 absent. (H. J. F.) A number occurred during the very low tide of 

 February 21st-22nd, 1913. (C. L. W.) One specimen, October, 

 1912, Owbert. (C. L. W.) 



Porcellana platycheles, Pennant.' Abundant under stones. 



P. longicornis, Linneeus. Extreme low water, Aberystwyth. Appearance 

 very uncertain. (H. J. F.) 



Dromia vulgaris, Milne-Edwards. One small specimen, Aberystwyth. 

 (H. J. F.) 



Eupagurus bernhardus, Linnaeus. Common. 



Portunus puber, Linnseus. Not uncommon, Aberystwyth, etc. 



Carcinus msenas. Pennant. Common. 



€ancer pagurus, Linnseus. Common. 



Pilumnus hirtellus, Linnseus. Pare. 



Pinnotheres pisum, Linnseus. Appears to be abundant with Mytilus 

 edulis, Aberdovey, etc. (C. L. W.) 



PYCNOGONIDA. 



Tycnogonum littorale, Stroem. Aberystwyth. (H. J. F.) 

 Nymphon gracile. Leach. Upon Plwnularia pinnata. (F. S. W.) 



TUNICATA. 



Styelopsis grossularia, van Beneden. One specimen, Aberystwyth. 



(C. L. W.) 

 Botryllus violaceus, M.-Edwards. Common under stones, Aberystwyth, 



etc. (H. J. F. ; C. L. W.) 

 Botrylloides sp. Aberystwyth. 



