BRITISH FRESH-WATER ENTOMOSTRACA. 539 



Belisarius Maupas. 



B. viguieri Maupas [Mrazek (43) = Phyllognathojyus pcdudosus]. 

 This has only been obtained in this country from the Royal 

 Botanic Gardens, Regent's Park, London, and Kew Gardens^ 

 where I find it almost constantly in the cups formed by the leaves 

 of Bromeliaceous plants. On one occasion at Kew I also found 

 it in the pitchers of one of the Pitcher-plants. Apart from its- 

 pecuhar habitat, it is a very remarkable species in other ways. 

 For instance, it is quite blind, it does not carry its eggs in an 

 ovisac, but apparently allows them to drop to the bottom, and 

 it possesses a special vibrating organ in the region of the shell- 

 gland which is quite unique so far as our present knowledge 

 of the Crustacea goes. 



In all my specimens, the caudal furca in the adult female 

 differs somewhat from Mrazek's figure, but I can find no other 

 point of difference. I hope to issue a drawing of the species 

 with Part III. of this synopsis. 



In the foregoing enumeration of free-swimming Copepoda only 

 a few forms have been admitted which can be considered as 

 beloncfinsr rather to brackish than to fresh water. These are 

 Eurytemora affinis Poppe, Cyclops hiciispickUus var. luhbockii 

 Brady, Cyclops aequoQ'eus Fischer, Canthocamj^tus-jxdustris Brady, 

 and perhaps C. hirticoimis T. Scott. There are, however, quite 

 a number of other species which occur in brackish water, the 

 most important of which it may be useful to enumerate here 

 without going into further details. Most of them are to be 

 found figured and described in Brady's monograph of the 

 British Copepoda (35). 



Acartia longiremis Lilljeborg. 

 Ectinosoma curticorne Boeck. 

 Tachidius discipes Giesbrecht 

 {= T. brevicornisO.F.lsl.). 

 Tachidius littorcdis Poppe. 

 Delavalia p>alustris Brady. 

 Mesochra lilljehorgii Boeck. 

 ,, rohertsoni Brady. 

 Laophonte siinilis Glaus. 



Laophonte littoi'cde T. & A. Scott. 



- „ rtiohammed Blan- 

 chard & Richard. 

 Cletodes tenuiremis T. Scott 



( = Itunella subscdsa Brady). 

 ^annopics palustris Brady. 

 Platychelipes littorcdis Brady. 

 Dactylopus tishoides Glaus. 

 Harpacticus fulvus Fischer. 



