146 DUBLIN UNIVERSITY 



In the gardens of the inn at Polperro, Philougria riparia is not 

 uncommon ; Porcellio scaler, Oniscus fossor, 0. murarius., and Philoscia 

 muscorum, as usual, abundant. I was surprised not to be able to find 

 Porcellio pruinosus, so abundant in Kent, although I searched several 

 likely localities. 



In returning home we took the Cliff-road, and at Talland Cove spent 

 a few moments examining the supra-littoral zone (the tide being nearly- 

 full in). Here, as might be expected, Ligia oceanica, Porcellio scaler, 

 Philoscia muscorum, and Or chest ia littorea, were abundant ; but I was 

 much pleased by also meeting with a Philoscia new to me, and also un- 

 described in the books. This I have named Philoscia Couchii (vide 

 "Proceedings, Dub. Nat. Hist. Soc," vol.i. p. Ill, "Nat. Hist Review," 

 voL v. p. 195), in memorial of one of the pioneers in the study of the 

 zoological geography of England, and of a few pleasant hours spent in 

 his company. The species appeared abundant, and the following de- 

 scription of the spot where it occurred may probably aid others in 

 finding it. Having descended the hill from Polperro, you cross the 

 stream which drains an extensive osier marsh ; the road then turns up a 

 narrow ferny lane, into a very heavy hill ; instead of turning up this 

 lane, keep straight on from the bridge, and a few yards brings you up 

 at the foot of the cliff. Here, amongst the loose stones and sea-weed car- 

 ried up by the high tides into the clefts of the slate rocks, in company 

 with the other Oniscoids and many Myriopoda, Philoscia Couchii will be 

 seen hiding among the shingle, and easily distinguishable from P. mus- 

 corum, which also occurs, by its uniform colour. 



At Looe, Philougria riparia occurred abundantly among sticks along 

 the river side. I looked carefully for Phil, vivida, but could not find it. 



In and about Plymouth, the following was the distribution of the 

 Oniscoids: — Philougria riparia, rare; Philougria rosea (added to our 

 lists by C. Spence Bate), abundant in the gardens of that gentleman's 

 house, and also in his cellars. Philoscia muscorum, Porcellio scaler and 

 variety, marmoratus, Oniscus murarius, and 0. fossor, all common. Li- 

 gia oceanica, very common. 



I did not pay much attention to the Mollusca, but the following 

 Helices are tolerably abundant : — Helix virgata, H. fusca, H aspera, 

 H. caperata (Devil's Point). Helix hortensis and H. nemoralis are by 

 no means rare in the Cornish lanes. Several of the latter sported the 

 white lip which led Forbes from the examination of shell specimens in 



