ASELLID^. 225 



ceolate. Legs very slender, and placed near the side of 

 the thorax. 



Coast of Devon j Sidraouth. 



Gen. 109. ANTHURA, Leach. 



Body very slender; antennae very short, of six or eight 

 joints. Tail furnished with two plates on each side. First 

 pair of legs with a small, slightly swollen hand, which is 

 subchelate, the six following pairs slender. 



Anthura gracilis, Montagu, sp. (Plate XII. fig. 4.) — 

 Body nearly cylindrical ; head elongated, and nearly as wide 

 as the thoracic segments ; last segment of abdomen rounded 

 at the end. 



Coast of Devon. 



Fam. JSEZLIDM 



End of the abdomen with style-shaped appendages. 

 Body more or less elongated and often linear ; first pair of 

 antennas very small, inserted near the median line ; abdo- 

 men of several distinct joints, the last large and shield- 

 shaped. 



The species of this family are all aquatic. Some of 



Q 



