82 PARL BOVALLIUS, AMPHIPODA HYPERIinEA. I. 2. HYPERIIDJE. 



Colour. ? 



Length. 17 mm. (Nine lines, Dana.) 



Hab, The Antarctic Seas, near Lat. 66° S. and Long. 157° E., taken from the cavity of a Me- 

 dusa, (Dana). 



Syil. 1852. Tauria maerocephala, J. D. DANA. United States Exploring; Expedition. 



Crustacea. Vol. 2, p. 988, pi. 68, 



fig. 2. 

 Hyperia » » Spence Bate. 1862. Catal. Ampb. Crust. Brit. Museum, 



p. 296, pi. 49, fig. 2. 

 Tauria » » C. Bovallius. 1885. »On some forgotten genera among the 



Amphipodous Crustacea". Bih. t. 



K. Sv. Vet. Ak. Handl. Bd. 10. 



N:o 14, p. 17, fig. 4. 

 » » » » 1887. "Systematical list of the Amphipoda 



Hyperiidea». Bih. t. K. Sv. Vet. Ak. 



Handl. Bd. 11. N:o 16, p. 19. 

 » » » » 1887 . "Arctic and Antarctic Hyperids». Vega- 



Exp. Vetensk. Iakttagelser. Bd. 4, 



p. 565. 



To judge from the drawing given by Dana 1. c. pi. 68, fig. 2a, and 2e (fig. land 4 

 above), the form of the second pair of pera^opoda is very peculiar, the carpus being not 

 dilated, much narrower than the carpus of the first pair. In the description, however, 1. c 

 p. 988 and 989, Dana says nothing about the different shape of the both pairs. Thus 

 it must be left to future investigation to clear up this question. 



Dana's description contains further: 



The head is nearly filled with the pigment of the eyes; the head is higher than 

 half the length of the peraeon. The antennary area on the front of the head is small, 

 not half the height of the front. 



The antenna? are short, subequal, hardly as long as half the height of the head, 

 subulate, extremity very closely multiarticulate. 



The cpimerals of the first to third, and fifth to seventh pairs are small, trun- 

 cate below. 



The first two pairs of peraiopoda have the femur broad, lamellar. The gen a and 

 tibia are small, not produced. The carpus is broad, more than twice as long as the 

 tibia, and longer than the metacarpus and dactylus together. The dactylus is small. 

 The first two pairs are much shorter than the following pairs, quite pubescent. 



