CANTHOCAMPTUS. 209 



foot-jaws consist, as in the preceding species, of two 

 articulations, and a tolerably strong hook, which points 

 upwards. 



The first pair of feet (t. XXVII, f. 3 a) has the ex- 

 ternal or superior stalk much smaller and shorter than 

 the other, and is divided into three joints, the last "of 

 which is terminated by three rather strong setae, or small 

 hooks. The internal or inferior stalk is much the longer 

 of the two, and is composed of tAvo articulations, the first 

 being very long in proportion to the second, which is ex- 

 ceedingly short, and terminated by a curved hook. The 

 three succeeding pairs of feet are precisely similar to 

 those of C. minntm. The fifth pair is rather larger than 

 in preceding species, and is formed of a broad, flat body, 

 which is rounded at one side, and furnished with several 

 rather long and finely-serrated setse; the opposite side 

 giving off an appendage, provided likewise with setae 

 serrated on their edges. 



When I first noticed this species, I considered it as the 

 Cyclops brevicornis of Miiller, who professes to take the 

 species from Strom, in the ' Acta Hafnise/ * and who, 

 among other characters, describes it as " setis caudae 

 brevissimis" Upon referring afterwards, however, to 

 Strom's paper, and finding his description of it as " setis 

 caucUe longissimis" I gave it the name of Cyclops Stromii,^ 

 and having since that seen the figure he gives of the 

 species he describes, I have no doubt of this being quite 

 distinct. 



Hab. Sea-shore at Cockburnspath, Berwick, &c., 

 amongst corallines and seaweeds, 1835. Dover, North 

 Foreland, September 1849. 



* Vol. ix, p. 590. 



f Mag. Zool. and Botany, i, 330. 



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