LAOPHONTE 73 



long and slender, the inner branch only about half as 

 long. The second pair in the male (fig. 11) is 3- 

 jointed, the last joint being armed with a slender curved 

 spine and four long setae. The fifth pair in the female 

 (fig. 12) has a very large triangular basal joint which 

 is often distinctly areolated, and has four long sub- 

 apical setae ; the second joint is large and ovate and 

 attached by a narrow neck near the outer angle of the 

 first joint ; it is densely ciliated round the margins 

 and has six stout setae externally. In the male (fig. 13) 

 the foot is much smaller, the basal joint scarcely at all 

 produced and bearing one external and two internal 

 setae ; the second joint small, angular, and 4-setose. 

 The caudal segments (fig. 14) are distant, moderately 

 slender, and about as long as the last abdominal seg- 

 ment; they bear a single stout apical seta, about 

 equal in length to the abdomen, and two short lateral 

 ones. Length -^th of an inch (*9 mm.). 



This is by no means a common species. Mr. Robert- 

 son and I dredged a few specimens in a depth of ten 

 to twelve fathoms off St. Agnes (Scilly), and like- 

 wise took a few amongst weeds at St. Mary's ; we 

 have also taken it in Clew Bay. and at the roots of 

 weeds in Roundstone and Mulroy Bays. I have speci- 

 mens dredged by Mr. E. C. Davison in Ventry Bay. 

 These are all the British localities known to me, and 

 the species would seem, therefore, to be distributed 

 chiefly, if not entirely, on our western shores. As 

 Dr. Claus's specimens, however, were taken at Heli- 

 goland, it is probable enough that it may be found 

 also upon the east coast of Britain. 



