iii».;i «ENus LANCEOL4. M^ 



ivith two palpi or two small feet united at tlie base 5 

 branchiae vesicular^ and situate at the inner base of th^ 

 ffeet^ with the exceptioii of the anterior pair. 



Genus *LANCEOLA,t 



Essential Character* 



Antennce four, terminal joints not articulated 5 a% 

 iennmform processes above the mouth ; caudal styles^ 

 three pairs, peduncle depressed linear, supporting; t}Y9 

 lanceolate lamellae. 



Natural Character, 



JSody soft, external covering membranaceous ; hedU' 

 very short, transverse ; eyes longitudinal, placed oppo- 

 site the base of the superior antennse; clypeus projects 

 ing into an acute angle ; /?'ow^ concave ; antejiTtce four, 

 unequal, inferiores longest, four jointed, compressed^ 

 basal joints very short, third and fourth longer, equal, 

 the latter entire, superiores abbreviated^ compressed^ 

 triarticulate, basal joints short, rol^u^t, concealed by 

 the clypeus, terminal joint no^ articulated, linear^ 

 compressed, obtuse ; mouth protuberant ; lahrum ema^- 

 ginate, supporting two filiform, triarticulate processes^ 

 of which the first joint is very short, second lineai^ 

 third shorter, subulate ; labium (pedipalpi) bifid, clos- 

 ing the mouth, lacinise linear, inner edges hirsute, tips 



[ In allusion to thp form •£ Uie terminal dlvIsioriS of the caudal %ppendic««, , 



Vol. F, A i> 



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