266 



CARL BOVALLIUS, AMPHIPODA HYPERIIDEA. I. 2. 



HYPERIIDjE. 



5. PARATHEMISTO BATEI, n. n. 



The name is given in honour of the first describer of the species Mr C. Spence Bate. 



Parathemisto Batei, n. n. 

 Facsimile from Spence Bate, Catal. Amph. Crust. Brit. Museum, pi. 49, fig. 4. 



Diagn. Corpus non carinatum. Caput segmenta duo prima peraei longitudine aequans. Carpus pedum 

 percei primi paris metacarpo brevior; margo posterior metacarpi non serratus(P); dactylus 

 dimidio metacarpi brevior. Metacarpus pedum secundi paris carpo multo longior; processus 

 carpalis duas partes metacarpi longitudine aequans, ac spinam terminalem gerens; dactylus 

 dimidio metacarpi brevior. Metacarpus pedum tertii ac quarti parium carpo multo longior. 

 Metacarpus pedum parium trium ultimorum articulis duobus praecedentibus duplo fere 

 longior. Pedunculus pedum uri ultimi paris quam telson ter quaterve longior; ramus in- 

 ternus externo longior. 



The body is not carinated. The head is as long as the first two pergonal segments together. 

 The carpus of the first pair of perwopoda is shorter than the metacarpus; the hind margin 

 of the metacarpus is not serrated; the dactylus is not half as long as the metacarpus. The 

 metacarpus of the second pair is much longer than the stem of the carpus; the front, side 

 of the carpal process is two-thirds as long as the hind margin of the metacarpus, and is 

 provided with a terminal spine; the dactylus is not half as long as the metacarpus. The 

 metacarpus of the third and fourth pairs is much longer than the carpus, that of the last 

 three pairs is nearly twice as long as the two preceding joints together. The peduncle of 

 the last pair of uropoda is three or four times as long as the telson; the inner ramus is 



longer than the outer. 



Colour. ? 



Length. 8 mm. ( 6 / 20 of an inch, Spence Bate.) 

 Hab. The "Antarctic regions» (Spence Bate). 



Syn. 1862. Hyperia trigona, (DANA). 



Spence Bate. Catal. Amph. Crust. Brit. Museum, p. 297, pi. 49, 

 fig. 4. 



