266 



CARL BOVALLIUS, AMPHIPODA HYPERIIBEA. I. 2. 



HYPERIID^. 



5. PARÅTHEMISTO BATEI, n. n. 



The iiarae is o;iveii in horiour of the first describer of tlie species Mr C. Spence Bate. 



Parathemisto Batei, n. n. 

 Facsiinile from Spence Bate, Catal. Amph. Orust. Brit. Museum, pl, 49, fig. 4. 



Diagn. Corpus non carinatum. Caj^ut segmenta duo prima peraji longitudine sequans. Carpus pedum 

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

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

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

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

 Metacarpus pedum parium trium ultimorum articulis duobus prajcedentibus duplo fere 

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

 ternus externo longior. 



The bodi/ is not carinated. The Jiead is as long as the first two perajonal segments together. 

 The carpus of the fii'St pair oi perceopioda 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 tvFO-thirds as long as the hind margin of the metacarpus, and is 

 pi-ovided 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 tlie telson; tlie inner ramus is 

 longer than the outer. 



Colour. ? 



Leugth. 8 mm. (7„„ of an inch, Spence Bate.) 

 Hab. Tlie »Antarctic regions» (Spence Bate). 



Syn. 1862. Hyperia trigona, (DANA). Spence Bate. 



Catal. Amph. Crust. Brit. Museum, p. 

 fig- 4. 



297, pl. 49, 



