SAPPHIRINID^. 39 



The woodcut here given is copied from Sir John 

 Lubbock's drawings, and represents, in one figure, the 

 entire animal, in the other a more enlarged view of the 

 anterior antenna. 



Family 8. SAPPHIRINID^;, Thorell. 



Body composed of eleven or twelve segments, either 

 long or subovate, abdomen broad or subpyriform, 

 cephalothorax subovate ; much broader than the abdo- 

 men ; head usually coalescent with the first thoracic 

 segment. Anterior antennae composed of five to seven 

 joints ; posterior simple, armed at the apex with a claw 

 or several curved setae. Mandibles small, subulate, 

 with a tapering extremity, or divided into a few slender 

 teeth; maxilla composed of a single small setiferous 

 digit attached near the base of the mandible; first 

 pair of foot-jaws bearing a few spine-like setae at the 

 apex; second pair bearing a terminal claw, which is 

 much larger in the male than in the female. First 

 four pairs of feet 2-branched, each branch 3-jointed, 

 except sometimes in the case of the inner branch of 

 the fourth foot, which may be only 1- or 2-jointed ; 

 fifth pair small, usually 1- jointed, ovisacs two. 

 Animals either free or living in the body cavities of 

 various Tunicata. 



The only British genus is Lichomolgus. 



