24 Amaryllis 



aud much broader than 5*^. Peraeopod 4, 2*^ Joint oblong, with rounded 

 lower bind coruer. Peraeopod 5, 2^ Joint larger than in preceding limb, 

 lower bind corner quadrate. üropod 2 witb rarai unequal, tbe longer baving 

 a constriction. Uropod 3 witb stiliform subequal rami longer tban tbe peduncle, 

 Telson sborter than peduncle of uropod 3. cleft a little beyond centre, 

 narrowing to tbe divergent apices. L. o about 11 mm. 



North-Atlantic (Azores). Depth 1829 m. 



2. A. macrophthalma Hasw. 1880 A. macrophthalmns -\- A. hrevicornis, 

 Haswell in: P. Linn. Soc. N.S.Wales, vA i).253 t. 8 f.3; p.2r)4 ! 1888 A.m., T. Stebbing 

 in: Kep. Voy. Challenger, f. 29 p. 707 t. 29 ] 1893 A. m. (part.), A. Della Valle in: 

 F. Fl. Neapel, u 20 p. 781. 



Pleon Segment 3, postero-lateral corners squarely upturned, forming a 

 little pocket above tbe poiut, but in tbe small Patagonian speeimen acute, 

 not upturned. Eyes vertically elongated, subcrescentic. Antenna 1, 3 joints 

 of peduncle not very elongate. 2'^ and 3"^ uearly equal, flagella variable, 

 primary witb 17, 30. 18, 5 joints in different specimens, accessory flagellum witb 

 13, 7. 5, 2 joints, respectively. Antenna 2, ultimate Joint of peduncle sborter tban 

 penultimate. Gnathopod 1, 3*^ Joint longer tban 4*^, 5^^' Joint sborter than tbe 

 tapering strongly pectinate 6^^, 7*'» Joint sbort, sligbtly curved. Gnathopod 2 

 not extremely slender. 5**^ Joint only a little longer tban 6*^ wbich is elongate, 

 of uniform width, 7*^ Joint small, ratber stout at tbe base. Peraeopods 3, 4 

 and 5, 2'' Joint roundly expanded, 4^i^ Joint broad, not elongate. Uropod 2 witb 

 rami unequal, tbe longer constricted. Telson reaching a little beyond peduncle 

 of uropod 3, cleft a little beyond tbe middle. apices broad, not divergent. 

 L. about 6 — 20 mm. 



South-Pacific (Tasniauia; Port Jarkson [East-Australia], sublitoral); Strait of 

 Magellan (Cape Virgins, depth 100 m). 



3. A. bathyeephala Stebb. 1888 A. bathycepJuilus, T. Stebbing in: Hep. Voy. 

 Challenger, c.29 p.699 t. 27 | 1893 .4. macrophthalmus (part.), A. Della Valle in: F. FI. 

 Neapel, r. 20 p. 781. 



Side-plates 4 distinguished from tbose of 2 preceding species by being 

 broader than deep and baving tbe backward Prolongation much more rounded. 

 Pleon Segment 3, postero-lateral corners squarely irpturned, forming a little 

 pocket above tbe point. Eyes large, inversely flask-shaped. Antenna 1, l'*' Joint 

 ratber long, 2'^ longer than 3*^, flagellum with 10 or 11 joints, 1^* not longer 

 than 2*^, accessory flagellum 3-jointed. Antenna 2. ultimate Joint of peduncle 

 a little sborter than penultimate, flagellum 9-jointed. Gnathopod 1 as in tbe 

 preceding species. Gnathopod 2, b^^ Joint decidedly longer than 6*^ 6^'' long, 

 dilating towards tbe oblique palm, 7*11 Joint small, curved, not reaching end of 

 palm. Peraeopod 3, bind lobe of side-plate more produced downwards tban in 

 A. macrophthalma, 2*^ Joint pear-sbaped, narrow above, with a rounded decurrent 

 lobe below. Peraeopods 4 and 5, 2^ Joint broadly oval, 4*^ Joint as in peraeo- 

 pod 3 moderately expanded. üropod 2, rami unequal, the longer constricted. 

 Telson not nearly reaching end of peduncle of uropod 3, cleft scarcely beyond 

 centre, apices rounded, scarcely divergent. L. about H mm. 



Port Phillip [Melbourne]. Depth 60 m. 



A. pulehella Bonnier 1896 A. jmlchdlus, J. Bonnier in: Ann. Univ. Lyon, 

 V. 26 p. 624 t. 36 L 3. 



Probably identical with A. haswelli (}). 23). Gnathopod 1. .ötb Joint shorter 

 than 6th (equal in fig.). Gnathopod 2. öth Joint not very much longer than 6th and 

 rather narrower. L. ? 11 mm. 



Bay of ßiscay. Depth 950 m. 



