new or rare Crustacea from Scotland. 239 



of the first four thoracic feet are all two-jointed ; the fourth 

 pair in the female and male are dissimilar — those of the female 

 do not differ much from the others except that thej are rather 

 shorter and stouter, but in those of the male the inner brandies 

 are almost obsolete, being reduced to two minufe joints, while 

 in striking contrast to these the outer branches are robust and 

 are armed with several stout spines in place of setae; the 

 first joint of the outer branches is considerably longer than 

 the next two together (fig. 12). The fifth pair in the female 

 have both joints broadly foliaceous and subquadrate, and bear 

 a number of strongly plumose terminal seta? ; in the male the 

 fifth pair are rudimentary and consist of a slightly produced 

 basal portion carrying four set^e, in addition to a small spine- 

 like seta on the inner margin (fig. 13). The caudal stylets 

 are covered with cilia, and are about two and a half times 

 longer than broad and equal to one and a half times the length 

 of the last abdominal segment. 



Hah. In pools of brackish water at the mouth of a small 

 stream at LufFness, Firth of Forth, and in similar pools at 

 the mouth of the river Alness, Cromarty Firth. Not very 

 rare. 



Eemurhs. Laophonte littorale resembles Laophonte curti- 

 cauda^ Boeck, in some respects, but differs very markedly in 

 the structure of the fourth thoracic feet of the male (the outer 

 branches are, however, somewhat similar to the outer branches 

 of the third pair of the male of that species, but the propor- 

 tional lengths of the joints are different). There are other, 

 though less obvious, differences between the two species, as, 

 for example, in the structure of the first thoracic feet and of 

 the male fifth feet. The species appears to be confined to 

 water that is more or less brackish. 



PSEUDOCLETODES, subgcn. nov. 



Resembling Cletodes^ Brady, in general appearance, but 

 the inner branches of the first thoracic feet are obsolete or 

 rudimentary ; inner branches of the second, third, and fourth 

 pairs two-jointed, the first joint very small. 



Pseudocletodes vararensis *, sp. n. 

 (PI. XII. figs. 4-14.) 



Length 1*14 millim. (vV of an inch). Rostrum ])rominent, 

 moderately broad, with a minute hair on each side of the 



* 'E'iaxvais Oiapap (yEstuary of Varar), the uame used by Ptolemy 

 for the Moray Firth. 



19* 



