228 THE ZOOLOGIST. 



preserved for this museum. — W. S. M. D'Urban (Albert Memorial 

 Museum, Exeter). 



Occurrence of the Lump-sucker in Devonshire.— On the 3rd April a 

 specimen of the Lump-sucker was captured at Exmouth, having followed a 

 crab-pot which was being hauled up. It is the largest I have ever received 

 from this coast, being 1 ft. 9| in. in length, and 10 in. in width at the 

 pectoral fins. It was a female, like most of those taken near the shore in 

 spring, and was of a deep bluish black colour, marked with greyish white. 

 There were a great many specimens of a small caligus on the skin. There 

 was nothing but mucus in the stomach. The roe was not developed. 

 Some of the fin-rays were curiously enlarged, and on the upper angle of 

 the caudal lin was a bony excrescence. It is stated that there are no teeth 

 on the tongue, but in this specimen there is a group of strong teeth in the 

 centre of the lower part of the mouth. This fish is not very common on 

 this coast. Very small ones are sometimes obtained in the estuary of the 

 Exe. It appears to be more numerous in deep water off Plymouth, but at 

 Exmouth, Teignmouth, and Brixham it is looked upon as a great rarity by 

 the fishermen. — W. S. M. D'Ukban (Albeit Memorial Museum, Exeter). 



The "White Trout" of Pennant— The Rev. H. M. St. Aubyn, of 

 Clowauce, some time since informed me that lie had, in his ponds there, 

 Common Trout and another and different fish of the Trout family, which, 

 as a rule, occupied different sides of the pond. He has kindly sent to me 

 recently a specimen of the latter fish, and on examination I found it, beyond 

 all question, to be the "White Trout" of Pennant — the fish which Jenyns 

 doubted might be the young of Sabno trutta (the Sea Trout or Salmon 

 Trout), in which doubt Yarrell acquiesces with, apparently, a reservation 

 that he wanted proof of its occurrence in waters entirely disconnected with 

 the sea before he declared it a separate species. It is also the Salmo trutta, 

 var. albus of Day, who does not declare it to be exclusively a fresh-water 

 fish. Clowauce ponds are fed by a rivulet rising in granite hills, a few 

 miles above them, and about half a mile below the ponds water charged 

 with mineral refuse begins to flow into this rivulet, increasing in quantity 

 from the various mines on the banks, until, some six or eight miles down, 

 it falls into the sea in the Hayle Estuary. This pollution has been going 

 on for at least a century, and in the polluted waters no fish, not even eels, 

 can live. So that here we have a fish, identical in every way except in 

 size with Salmo trutta, spending its whole existence, and breeding freely, 

 in fresh water. I think this shows that Salmo trutta, var. albus, may be a 

 purely fresh-water member of the Salmon family. — T. Cornish (Penzance). 



ARCHAEOLOGY. 



Origin of the Name "Daker-hen." — In Lincolnshire there is a 

 common provincial term in use expressive of unsteadiness or uncertainty in 

 gait, whether in bipeds or quadrupeds. Country people say he " dackers " 



