TESTACEOUS MOLLUSCA. ita 
Saxicava rugosa, L. 
Abundant in many places, living: the var. arctica, L. 
also occurs. 
*Teredo navalis, L. 
Southport, once in driftwood (G.W.C.) : one valve in 
sand (W.H.H.). New to district. 
SCAPHOPODA. 
Dentalium entale, Li. 
Colwyn Bay (F.A.), and once abundantly in central 
area—living: dead at Bull Bay and Tynygongl (F’.A.). 
Dentaliwm tarentinwm, Lam. 
Central area, 25 m. N.W. of Bar Lightship, 2 or 3 
dead shells (‘‘ Spindrift ’’’); several 20 m. W. of South- 
port (G.W.C.). 
POLYPLACOPHORA. 
Chiton fascicularis, Li. 
Scarce living at Porthwen (F.A.) and Llandudno 
UB .1".). 
GASTROPODA. 
Tectura testudinalis, Mull. 
Now abundant at Fleetwood (W.H.H.): dredged 
living but small at Port Erin, and one littoral speci- 
men at Llandrillo (F.A.): one fresh shell, Carnarvon 
Bay (‘‘ Hyeena,’’ 1890). 
Tectura virginea, Mull. 
Common at roots of Laminaria on Puffin Is. (A. Lei- 
cester): rare living at Llandudno (B.T.): abundant 
alive off Port Erin (F.A.). 
* Puncturella noachina, Li. 
New to district. 2 dead in central area dredgings 
(‘‘ Spindrift ’’). 
Emarginula fissura, Li. 
Dead shells of general occurrence. The same applies 
to Fissurella greca, L. 
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