NOTES. 433 



TurbeJlaria. 



Ificrostomum linearc, at Greifswald, in tlie Baltic (M. S. Schnltze, 

 .f. Xatnrge*., 1849, v. 15). 



Enchytra-tu gpivulus} Frey and Leuckart, at Heligoland, on the 



Sfeimriu neurosoma /seashore ia mai (Frey and Leuckart, Zur 

 Kenntniii mrbelloier Thiere). 



Tubife* papilkiu*, Clap, -j 



Het?ro<:h(rtacogtata,Cla.p. > la the Atlantic (Claparede). 



Ctenodilu* pardalis, Clap. J 



Pachydrihis, Clap. All the species live in brine-pools, as Kissingen, 

 Kreuznach, .ice. 



Pontodrilus Marioin. Sea-coast near Marseilles, in pore sea- water. 



Cystobranchus viridi*, Verrill. A leech, living equally in fresh and 

 salt water (Report of Prof. Baird on Fisheries for 1872-73, p. 686). 



Arthropoda. 

 1. Crustacea. 



f Found by me in estuaries which occasion- 

 ally contain strongly salt water, at Zamboanga, 

 S.W. point of Mindanao, Philippine Islands 



Gammarus, species 

 Cyclops, species 



October 15, 1859, by my diary. The typical 

 genus Palaemon is a true fresh- water form ; 



Cyprit ^ almost all the species live in pure fresh water, 



PaltEmon Id<t (Heller) j and many occur high up in mountain streams 

 Paltemon, species n. j as far as 6,000 feet above the sea. Only the 

 i two species here mentioned occur in brackish 

 J water or on the sea-shore. Pal&mon. Idee I also 

 l^found in the harbour of Hong Kong. 



Aftacu*. Two species in the Caspian Sea ; associated with marine 

 species (Eichwald, Ar,-h.fiir Naturg., iv. Jahr.). 



Branckipm staynalis, a typical fresh-water form, is said by Braun to 

 grow much larger in salt than in fresh water, but he does not mention 

 whether the Crustacean remains otherwise unaltered. 



Daphni* rectirottrit and other species live, according to Schmanke- 

 witsch, equally well in salt and fresh water, but they exhibit certain 

 differences depending on the medium. 



2. Araehnida. Sea-mites are by no means rare. Gosse has described 

 three English species (Ann. Xat. Hitt., ser. 2, vol. xvi. pp. 27, 305). 



Pontarchus was found by Philippi on the shore at Naples. 



Thalassarachna YerriUii (Pack.) lives in deep water off the American 

 coast (Silliman'i Am. Journ., 1871, February). I myself have found 



