i 04 Ampelisca 



Telson with 6 or 7 stiff setae on each side, its shape as iu A. gibba Q . 

 Colour after long preservation in spirit still keeping a green tint. L. 7 mm. 

 North-Atlantic (Cape Einisterre). Depth 510 m. 



9. A. abyssicola Stebb. 1888 Ä. a., T. Stebbing in: Kep. Voy. Challenger, 

 «1.29 p. 1047 t. 104 I 1893 A. ct., A. DellaValle in: F. Fl. Neapel, i\ 20 p. 477. 



Head transversely truncate. Side-plates 1 — 3 with small tootb at lower 

 bind Corner, 4*^ witb lower aod bind margins almost continuous. Pleou segment 3 

 with postero-lateral corners quadrate, segment 4 impressed and with carina 

 dorsally ending angularly. P^yes wanting. Antenna 1 in 9 not nearly reaching 

 end of peduncle of antenna 2, 2*^ Joint nearly twice lengtb of 1^*, flagellum 

 10- or 11-jointed, scarcely as long as peduncle; antenna 2 nearly as long asbody, 

 ultimate Joint of peduncle slightly longer than penultimate. Mandibular palp 

 witb 2'! Joint long and rather broad, 3*^ much shorter and narrower, but not 

 very narrow. Maxiila 1 with two setae on inner plate. Gnatbopod 1, 5*^ 

 and 6**^ joints stout. Peraeopods 1 and 2, 7*^ Joint a little longer than b^^ and 

 6*^ combined. Peraeopod 5. expansion obliquely rounded, reaching nearly 

 to end of 4^*1 Joint, 3<^ and 4^^ joints both short, 5^^^ longer than both combined, 

 produced downwards iu front, 6*^ oval, considerably shorter than 5*^ and 

 scarcely longer than the lanceolate 7*^^. üropod 3 with lanceolate rami, 

 seiTate on both margins and furnisbed with spines and plumose setae. Telson 

 not twice as long as broad, deeply cleft, with 4 pairs of spinules within the 

 margins, the apices broad, each with a spinule. L. 16 mm. 



Tropical Atlantic (Virgin Islands Culebra and St. Thomas). Depth 714 m. 



10. A. australis Hasw. 1880 A. a., Haswell in: P. Linn. Soc. N.S.Wales, i;. 4 

 p. 257 t. 9 f. 1 I 1882 A. a., Haswell Cat. Austral. Crust., p. 235 | 1885 A. a. (part.?), 

 Haswell in: P. Linn. Soc. N.S.Wales, vAQ p.97 1. 12 f. 7—16; 1. 13 f. 1—4 ] 1893 A. a., 

 A. DellaValle in: F. Fl. Neapel, ».20 p.471. 



pjyes not mentioned or figured, perhaps but not certainly to be presumed 

 from generic account adopted in Haswell's Catalogue. Antenna 1 not nearly 

 reaching end of peduncle of antenna 2; antenna 2 about twice as long as 

 antenna 1, ultimate Joint of peduncle shorter than penultimate, flagellum with 

 about 10 slender joints. Gnatbopod 1, (y^^ Joint about as long as 5^^. Gnatbopod 2 

 similar to gnatbopod 1, but shorter and slightly stouter [?]. Peraeopods 1 

 and 2, 7*^ Joint as long as 5*-^ and 6*^ combined. Peraeopod 5 with 

 4*^ Joint very short and broad, ö*** longer than 4*^ or 6*^, 7^^ long, slender 

 and slightly curved (measurements agree nearly with those of peraeopod 5 

 in A. abyssicola). üropod 3, rami broad lanceolate. the outer armed on one 

 border, the inner on both with slender setae. Telson squamiform, cleft, 

 rounded posteriorly. L. about 9 mm. (Figui-es of peraeopod 5 given by 

 Haswell 1885 are at variance with the descriptions of 1880, 1882.) 



Port Jackson, Port Denison and Port Stephens [East-Australia]. Depth 9 — 11 m. 



11. A. rubella A.Costa 1864 A. r., A.Costa in: Annuario Mus. Napoli, v.2 

 p. 153 t. 2 f. 7 I 1888 A. r., T. Stebbing in: Rep.Voy. Cliallenger, v. 29 p. 346 j 1895 

 A. r. (part.), A. DellaValle in: F. Fl. Neapel, i'.20 p. 109, 482 t. 2 f. 4; t. 37 f. 21; t.38 

 f. 1,4, 10, 16; t.45 f. 6. 



Head truncate nearly transversely, but with upper corner a little 

 prominent. Pleon segment 3 moderately sinuous above bluntly projecting 

 postero-lateral angies. Corneal lenses wanting; crimson pigment not very 

 brilliant; rudiments of a 3'^ pair of eyes conspicuous, Antenna 1 about as 

 long as antenna 2, peduncle reaching beyond penultimate Joint of peduncle of 



