On some new Amphipodous Crustacea. 443 



There is nothing rcniaricahle about the rest of the leg.s, ex- 

 cept that thej are .slightly scabrous. 



Abdomen slender, filit'orin, wider than the protiiorax ; the 

 saj>raanal plate siiort, transverse, fully- twice as broad as long, 

 truncate-rounded at the tree end ; terminal cleft portion of 

 the infragenital plate strongly and suddenly compressed, and 

 projecting wholly beyond the abdomen, but hardly reaching the 

 extremities of the cerci) these are oval, broadly foliaceous, 

 scarcely thrice as long as broad, indistinctly articulated at the 

 base, where they are formed of a number of very short joints 

 all ankylosed together, but showing three tolerably distinct 

 large apical joints, the terminal one of which is obliquely ti-un- 

 cate, so that the upper margin of the appendage appears 

 strongly convex, while the lower is almost straight. 



Colour of the living insect, with the wings closed, pale luteous 

 grey ; the tegmina slightly yellower than the body. 



Male unknown. 



Total length oOmillims. ; length of protiiorax 14^, of which 

 the neck is 4^, width of protiiorax at supracoxal dilatation 2 ; 

 length of abdomen 26, width of abdomen 2| ; length of teg- 

 mina 23^, width of tegmina 5; length of wings 22|, of fore 

 coxa 7^, of fore femur 9. 



Hah. A single specimen of this beautiful little insect wag 

 captured by my wife on a dinner-table in Calcutta. It flew 

 in at the window, attracted l)y the bright lights, Westwood's 

 H. tenuijjes is said to have come from Senegal. 



XLV. — On some new and h'fth-knoirn Amphipodous Crmtacea. 

 By the Kev. T. R. R. Stebbing, M.A. 



[Plates XIX, & XX,] 



Avqjhilochus co7icinna, n. sp. PI. XIX. figs. 1, la, 1 b. 



Amjyhihchus concinna was dredged in or near Torbay in 

 April 1876. 



The antenna are subequal in length ; the superior the more 

 robust, with the first joint longer than the other two and the 

 flagcllum as long as the peduncle ; several articulations of the 

 fiagellum are furnished with long hairs. In the lower antennte 

 the penultimate joint is the longest ; the flagcllum has only 

 three articulations, together equalling in length the last joint 

 of the peduncle. The head has a depressed rostrum ; each, 

 side also is produced into a shan) point between the upper and 



