706 THE VOYAGE OF H.M.S. CHALLENGEE. 



a little decurrent, with four groups of spiues on each margin ; the remaining joints as in 

 the third pair, but they are now missing. 



Pleopods. — Peduncles with a few setae or slender spines on the peduncles ; no coupling 

 spines perceived ; the cleft spines of the inner ramus four in number ; the joints of the 

 rami about sixteen to eighteen in number. 



Uropods. — The peduncles of the first pair somewhat longer than the stiliform rami; 

 the peduncles of the second pair shorter than the lower ramus, which stands a little 

 within the shorter upper ramus ; the latter is bordered with eight strong spines, the 

 former has half a dozen on its inner edge, and below these a longer one on a rounded 

 point, below which the ramus is suddenly constricted, as in Ichnopus and various other 

 genera ; the peduncles of the third pair shorter than the stiliform, subequal rami, both of 

 which have some spines on the margins. 



Telson not reaching the end of the peduncles of the third pair, narrowed below, cleft 

 a little beyond the centre, a little dehiscent below, especially at the apices, where the 

 inner margins curve a little outwards ; cilia on the apices and near the lateral margins 

 some way below the top of the cleft. 



Length of the specimen, seven-fifteenths of an inch. 



Zoco/%.— Station 78, off the Azores, July 10, 1873 ; lat. 37° 26' N., long. 25° 13' W.; 

 depth, 1000 fathoms ; bottom, volcanic mud. One specimen ; female. Dredged. 



Remarks. — The specific name is given in compliment to Mr. W. A. Haswell, by whom 

 the genus Amaryllis was instituted. 



From the other two species of the same genus, as well as from all other known sj^eeies 

 of the Lysianassidge, this is remarkably distinguished by the long second joint of the upper 

 antennae. The exceptional character of the form gives a sort of guarantee that it was 

 actually obtained from the exceptional depth of 1000 fathoms. 



Amaryllis macrophthalmus, Haswell, juv. (PI. XXIX.). 



It was not tiU very long after the Plate had been engraved for this species that I 

 received a specimen of Mr. HasweU's Ama7'yllis brevicornis, which is in my opinion 

 synonymous with his Amaryllis macrophthalmus. The little specimen now to be 

 described was taken at an enormous distance from Australia, and if no regard be paid to 

 the differences which exist between the young and adults of Amphipoda, as of most other 

 animals, it would be easy to consider it a new species. 



The bodj^ compact ; head deep, reaching to the fourth side-plate, between which and 

 the head the other three side-plates are as it were shut in ; the mouth-organs projecting 

 conspicuously ; the postero-lateral angles of the third pleon-segment acute, not upturned. 



Eyes small. 



