KONGL. 8V. VET. AKADEMIENS HANDLINGAK. BAND. 22. N:() 7. 



251 



1. PAIIATHEMISTO OBLIYIA, H. KROEYEll, 1838. 



Pl. XII, fia;. 11-16. 



Hyperia oblivia, Kroeyer. 

 Facaimile from Kkoeykr, Granl. Amf. pl. 4, tig. 19. 



Fig. 1. The first pair of antenii<e. 2, The 

 seoond pair of aiiteniia;. .3. The first pair 

 of perajopoda. 4. The second pair. 5. The 

 third pair. 6. The urus. 



Parathemisto abyssorum, A. Boeck. 

 Drawn from the type specimen by A. M. 'Westergren. 



Diagn. Coiyus leviter carinatum. Caput segmentis duobus primis periei longius. Cnvpus pedum perwi 

 prinii paris metacarpo paullo brevior; margo anterior levis, margo posterior spinis longis deuse 

 instructus; margo posterior metacarpi serratus et spinis longis instructus; dactylus meta- 

 carpo paullo brevior. Metacarpus pedum secundi paris carpum longitudine asquans; pro- 

 cessus carpalis duas partes longitudinis metacarpi ajquans, spina terminali instructus, dimi- 

 diam partem longitudinis processus ejusdem gequante; dactjdus metacarpo paullo brevior. 

 Metacarpus pcdum tertii ac quarti parium carpo longior; metacarpus pedum parium trium 

 ultimorum articulos duos prfecedentes longitudine ajquans. Pedunculus pedum uri ultimi 

 paris quam telson plus quam ter longior; ramus internus exteruo longior. 



The bodjj is feebly carinated. The head is longer than the first two perteonal segments together. 

 The carpus of the first pair of perceopoda is a little shorter than the metacarpus, is smooth 

 on the front margin, and is densely fringed with long bristles along the liind margin; 

 the bind margin of the metacarpus is serrated, aud armed with long bristles; the dactylus 

 is a little shorter than the metacarpus. The second pair have the metacarpus as long as 

 the stem of tlie carpus; the carpal process is two-thirds as long as the hind margin of the 

 metacarpus, with an apical spine, which is fully half as long as tbe process; the dactylus 

 is a little shorter than the metacarpus. The metacarpus of the third and fourth pairs is 

 longer than the carpus; that of the last three pairs is as long as the two preceding joints 

 together. The peduncle of the last pair of uropioda is more than three times as long as 

 the telson; the inner ramus is longer than the outer. 



Coloui". Reddish brown. 



Lengtli. 5- 8 mm 



