SUBMARINE AIR-BREATHING ANIMALS. 93 



I obtained this specimen in a coralline pool at extreme 

 low water in St. Clement's Bay, Jersey. It was about three 

 milimetres long, of a pale buff colour, and had formed a little 

 silken tube in a tuft of coralline. 



In the month of September, 1889, I was a little startled 

 by having brought to me by my son, who had been collecting 

 amphipods, a little marine Pseudo-scorpion, which he had 

 found among marine Crustacea and annelida in a rock crevice 

 in Samares Bay. I at once repaired to the spot and was 

 successful in obtaining another, and subsequently six more 

 examples. I sent one of these to Professor Darcy Thompson, 

 of Dundee, who placed it on record in Nature, and in 

 December I received a copy of the Journal de Biologie du 

 Novel de la France, with figures and description of the same 

 form, from specimens found by Professor Moniez at Portel, 

 near Boulogne-sur-Mer, on the very same date as I had 

 observed it in Jersey. It is recorded as Obisium littorale, 

 Moniez. One of these specimens is already in the Guernsey 

 Museum, and I have pleasure in now asking the acceptance 

 of a larger example of the same species. 



An allied form, but differing in some important parti- 

 culars, had previously been recorded; this had been found on 

 the west coast of England by M. Prideaux, and described by 

 Leach. 



Of six recorded species of Collembola in the littoral zone, 

 I have so far found but one on the coast of Jersey ; this is 

 Anuvida maritima. This Podurid exists in great profusion. 

 It is not an uncommon experience to find on breaking off' 

 a slab of rock, where the conditions are favourable, patches of 

 them resembling a piece of black velvet six or seven inches 

 across, and containing some thousands of specimens. 



These occupy a zone just below the high tide level where 

 they are only submerged for a brief period each tide. 



Finally there are two strictly marine Myriapods, viz., 

 Qeophilus submarinus, Var egregia, discovered in Samares 

 Bay by myself in 1888, and described under the above name 

 from the same specimens by Professor Letzel, of Vienna. 



What appears to be the Geophilus maritimus of Leach 

 was found here by M. Fauvel a week or two ago. This form 

 had previously been recorded from Denmark, France, and one 

 or two places in England. 



The whole of these animals, except some of the Arach- 

 nids, occupy the same kind of situation, viz., crevices of rocks 

 where the clefts of " cleavage " are somewhat open and loosely 

 packed with sand and gravel, and range from ordinary high 



