268 



CARL BOVALLIUS, AMPHIPODA HYPERIIDEA. I. 2. 



HYPERIID^E. 



PARATHEMISTO GRACILIPES, A. MERLE NORMAN, 1869. 



Parathemisto gracilipes, Norman. 

 Facsimile from Spence Bate and Westwood, Brit. Sessile-eyed Crust., II, p. 16. 



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

 perwi primi paris metacarpo longior; margo posterior metacarpi serratus; dactylus dimidio 

 metacarpi brevior. Metacarpus pedum secundi paris carpum longitudine aequans; carpus 

 non productus, spinis nonullis, margini posteriori affixis, instructus; dactylus dimidium 

 metacarpi longitudine asquans. Metacarpus pedum tertii ac quarti parium carpo longior. 

 Metacarpus pedum parium trium ultimorum articulis duobus praecedentibus longior. 



The body is not carinated. The head is as long as the first three peraeonal segments to- 

 gether. The carpus of the first pair of permopoda is longer than the metacarpus; the hind 

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

 The metacarpus of the second pair is as long as the stem of the carpus; the carpus is 

 not produced, provided with a few long bristles on the hind margin ; the dactylus is half 

 as long as the metacarpus. The metacarpus of the third and fourth pairs is longer than 

 the carpus; that of the last three pairs is longer than the two preceding joints together. 



Colour. "Light straw, having the back starred with a few spots of black pigment (Sp. Bate and 

 Westwood). 



Length. 5 mm., ( 4 / 20 tbs °f an ' ncn ' Spence Bate). 

 Hab. Moray Frith (Spence Bate). 



