* 



l 



^7^—^; 



EXPLANATION OF FIGURES. 

 Linuparus atavus. 



Figure 1 — Upper view of larger specimen. -£ nat. size. (Some details of struc- 

 ture of the carapace are supplemented from the smaller specimen.) 



Figure 2. — Frontal parts of carapace and base of antennas, viewed from above, 

 and showing stridulating apparatus. Nat. size (large specimen). 



Figure 3. — do., viewed from below. Nat. size.— a. Longitudinal groove, divid- 

 ing the epistoma ; b. Phymacerite ; c. Basal joints of antennulse. 



Figure 4. — Linuparus trigonus (da.), living Japanese form, the same parts as 

 in fig. 3, copied from the "Fauna Japonica " for comparison. £ nat. 

 size. 



