122 BRITISH COPEPODA. 



1. LOPHOPHORUS INSIGN1S, UOV. sp. PI. XIII, figS. 



1—10, and PI. XV, fig. 10. 



The anterior antennae are half as long as the first 

 segment of the body, and densely clothed with 

 long, beautifully plumose setae, as also are the feet 

 and other limbs. The fifth foot (fig. 9) consists of 

 two foliated processes (the lower of which is much 

 the largest), and bears four large strongly pennate 

 setae and three simple setae. The tail appendages are 

 short (fig. 10), and have each two stout and 

 beautifully plumose setae, as well as two shorter 

 simple hairs. Ovisacs two, broadly pear-shaped, 

 each containing three or four very large ova. Length 

 -^th of an inch ('9 mm.). 



Three specimens only of this very distinct and 

 beautiful Copepod occurred in a dredging made by 

 Mr. Robertson and the Rev. A. M. Norman, six miles 

 off the Durham coast, near Hawthorn, on a sandy 

 bottom, and in a depth of twenty-seven fathoms. 



Family 4. Notodelphyim, Thorell. 



Body composed of eleven or twelve segments ; 

 abdomen subcylindrical, narrower than the cephalo- 

 thorax, and divided at the extremity into two caudal 

 segments. First thoracic segment usually united with 



