NOTES ON THE FAUNA OF LUNDY ISLAND. 445 



The Bed Admiral (Pyrameis atalanta) was the only butterfly 

 which could be said to have been common. I also saw the Small 

 Copper (Chrysophanus phhms), the Blue (Lyccena alcxis), the 

 Brown Argus (L. astrarche), the Small Heath (Coenonympha pam- 

 phihis), the Cabbage White (Picris rapes) , and the Meadow Brown 

 (Epinephele ianira). 



Among the Coleoptera, the Rose Chafer (Cetonia aurata) was 

 exceedingly plentiful ; so, too, was the Tiger Beetle (Cicindela 

 campestris). I observed incidentally Helops striatas, Silpha 

 tristis, Nebria brevicollis, Calatlius cisteloides, Corymbetes ceneus, 

 and Steropus madid us. 



The ubiquitous Cockroach {Periplaneta) does not appear to 

 have reached Lundy Island, as none of the inhabitants of whom 

 I inquired recollected having ever met with it. 



I collected eleven species of Land Isopoda (vide the Annals 

 and Mag. Nat. Hist., October, 1909), two of which, viz. Cylisticus 

 convexus and Trichoniscus pygm&as, have not yet been discovered 

 in North Devon. A more extended study both on the mainland 

 and on the island is necessary before any opinion can be 

 expressed on the relation of the Land Isopods occurring in the 

 two localities. 



There are a number of fresh-water ponds and water-pits on 

 Lundy, and a qualitative and quantitative study of their micro- 

 scropic fauna particularly would be very valuable. 



No Frogs, Newts, Lizards, or Snakes occur. 



The accompanying sketch-map shows the depths of the water 

 around the island, and also the three banks, which possibly repre- 

 sent granite bosses, similar to that of the island itself. According 

 to soundings made during the Admiralty Survey of 1880, the 

 water between the North End and Ilfracombe along a line in the 

 direction of north-east over the Stanley Bank ranges between 

 twenty-one and twenty-four fathoms, Ilfracombe being over 

 twenty-five miles away. The water due east between the island 

 and Morte Point, only eighteen miles distant, reaches a depth of 

 twenty-seven fathoms, while the water between the island and 

 the nearest land, Hartland Point, is the deepest of any, attaining 

 a depth of thirty-two fathoms. The water on the further side of 

 Lundy rapidly increases to thirty-two fathoms and more. 



It would appear quite possible that the last connection 



