1910.] OSTKACODA FKOM TANGANYIKA. I .M 



ivlatiou oF the two valves, as alsi> a[)i)MreiiTly in tlie st I'lictnre of 

 the ejac'iilatory tubes in the lUMle, and shouhl perhaps inon- 

 properly be combined into a separate new genus, whieli, in such 

 c;ise, would be exclusively peculiar to Lake Tanganyika. 



EXPLANATION OF THE PLATES. 



Plate LXIV. 



Parncj/pria decliris (i. O. Sars. 



Fiy:. 1. Adult t'emalo, viewed tVoiii right side. 



2. Sanip, dorsal view. 



;l Adult male, seen troui left side. 



•I. Anterior leg. 



o. Posterior leg. 



(i. Caudal rannis. 



7. Pali> of left i)osterior ina\illa of male. 



8. Palj) of right jiostevior maxilla of same. 



Pamci/pria com/plauata (i. O. Sars. 



Fig. 0. .Vdult male, viewed from right side. 

 10. Same, dorsal view. 



Parcici/pria conoidca G. 0. Sars. 



Fig. 11. Adult male, viewed from right side. 

 12. Same, dorsal view. 



Plate LXV. 



Paracj/pria obttisa G. O. Sars. 



Fig. ]. Adult female, viewed from right side. 



2. Same, dorsal view. 



3. Adult male, viewed from left side. 



■1. Pieee of the eoiitral part of right valve, showing the finely striated seulpture 



of the shell and the group of muscular impressions. 

 5. Superior anteiuia. 

 H. Inferior antenna. 



7. Mandihle ami jialp. 



8. Anterior maxilla with viliratory plate. 

 t). Posterior maxilla. 



10. Anterior leg. 



11. Posterior leg. 



12. Caudal ramus. 



13. Inferior antenna of male. 



It. Palp of right posterior maxilla of same. 

 15. Palp of left posterior maxilla of same. 

 Iti. Copulatory appendage of same. 

 17. Ejaculatory tvdie of same. 



Pi.att; LXVL 

 P((racj/jiria deffe.va G. O, Sars, 



Fig. 1. Adult female, viewed from right side. 



2. Same, dorsal view. 



3. Adult male, viewed from left side. 



4. Anterior lips of valves, viewed from right side. 



5. Piece of the central part of right valve, showing the muscular impressions. 

 B. C'auaat ramus. 



Paraciiprkt siiha)i(/iiJafn G. 0. Sars. 



Fig. 7. Adult female, viewed from right side. 

 8. Same, dorsal view. 

 i). Adult male, viewed from left side. 



10. .Anterior lips of valves, viewed from right side. 



11. Caudal ramus. 



