Valettia, Amaryllis 



23 



crenate, Peraeopods 1 and 2, 4*^'^ Joint broader and rauch longer than 6^^. 

 Peraeopod 3, 2^ Joint a narrow oval. Peraeopod 4, 2*^ Joint rather larger 

 than in peraeopod 8. Peraeopod 5, 2** Joint expanded above, narrowing 

 below. Cropod 3, rarai short, broad. the outer the longer bv a minute 

 2*^ Joint. Telson with rounded apices. L. 12-5 mm. 



Antarctic Ocean (lat. 62" 26' S.) Depth 3612 m. 



13. Gen. Amaryllis Hasw. 



1880 Amaryllis, Haswell in: P. Linn. Soc. X.S.Wales, U4 p. 253 | 1888 A., 

 T. Stebbing iu: Rep. Voy. Challenger, v. 29 p. 698 j 1693 A., A. Della Valle in: F. Fl. 

 Neapel, r. 20 p. 781. 



Head very deep. Peraeon segment 1 shallow, segraents successively 

 deeper to 2*^ of pleon. Side-plate 1 very small, 4*^^ abruptly larger than 

 those preceding it. Antenna I (Fig. 5), 1^* Joint not very stout, 2^ and 

 3*^ not very short. Mandible, cutting edge simple, secondary plate of left 

 mandible denticulate, spine-row with raany short spines, molar feeble, ciliated, 

 not denticulate, palp behind centre of truuk. Maxiila 1, inner plate with 

 2 plumose setae, palp wanting. Maxillipeds, inner and outer plates large, 

 outer without spine-teeth, ' 4*^^ Joint of palp small, obtuse, without a uail. 

 Gnathopod 1 simple. Gnathopod 2 subchelate. Telson cleft. 



3 species accepted, 1 doiibtful. 



Synopsis of accepted species: 



j Antenna 1, 2<i Joint much longer than 3d . . 

 1 l Antenna 1, 2d Joint not much longer than 

 I 3d — 2. 



j Peraeopod 3. 2<1 Joint expanded above. . . . 

 ) Peraeopod 3, 2d Joint not expanded above . . 



1 . A. hasAvelli p. 23 



2. A. macrophthalma . . p. 24 



3. A. bathycephala . . . p. 24 



1. A. haswelli Stebb. 1888 A. h., T. Stebbing in: 

 ßep. Voy. Challenger, «;.29 p. 703 t. 28 j 1893 A. h., A. Della 

 Valle in: F. Fl. Xeapel, ü. 20 p. 781. 



Pleon Segment 3,« with the angles acute, not 

 upturned, the bind margin bulging above them. Eyes 

 not distinctly observed. Antenna 1 (Fig. 5), 1^* Joint 

 elongate, and ending in a tooth */., length of 2'* Joint; 

 2^ thrice length of 3*^ ; flagellum with 24 joints. P* shorter 

 thanlast of peduncle; accessoryflagellum4-jointed. An- ^d'^^^nt' ~ 

 tenua 2 subequal to antenna 1, ultimate Joint of peduncle 

 about '/g length of penultimate, flagellum 22-jointed. 

 Maxiila 1, outer plate carrying 11 spines. Gnathopod 1, 

 2^ Joint as long as the 4 following combiued and iaSum 

 much wider than any, 3*^ as long as 4*^, 5*^» longer ' 

 than the long tapering 6*^^ which has the bind margin 

 pectinate; there are many spines and setae on these 

 joints; 7**» Joint small, curved. Gnathopod 2, 2<^ Joint 

 not as long as 5**» and 6*^ combined, 3*^ longer than 

 4*i\ b^^ nearly twice as long as 6*^'^, both slender, 

 densely furred; 7**» Joint small much curved, over- 

 arching the narrow palmar margin. Peraeopods 1 and 2 

 slender. Peraeopod 3, side-plate much wider than 

 2^ Joint, with bind lobe the longer, 4^^ Joint longer 



FlageUum — 



Fig. 5. A. haswelli. 

 Antenna i. 



