552 Talorchestia 



as subequal, tinger quite small. Guathopod 2 in 5 , 2'^ Joint rather expanded, 

 5^^ little louger than 6^*^, with bind margin bulging at tlie centre, 6^^ 

 produced beyond the minute linger to a rouuded lobe, wbicb bends forward, 

 so that the front line of the band is slightly concave. Peraeopod 2 mucb 

 sliorter than peraeopod 1 : the finger is gibboiis below, or has a prominent angle 

 and is stout. Peraeopods 3 — 5, 2'^ Joint narrowly oval. Peraeopod 5 the 

 longest. üropod 1, outer ramus with spines only at apex. Uropod 3, pedum-le 

 rather longer than telsou, which the ramus nearly equals. Nearly colourless. 

 L. about 12 mm. 



Coral Island in the Balabac Passago. 



16. T. spinipalma (Dana) 1852 Orchestia s., J.D.Dana in: P. Amer. Ac, c.2 

 p. 203 I 1853 & 55 0. s., J. D. Dana in: U. S. expl. Exp., v. 13 11 p. 875; t. 59 f. 4a- e ! 

 1862 0. s., Eate. Cat. Amphip. Brit. Mus., p.28 t. 4 f. 9 | 1880 Talorchestia terrae-reg'mae, 

 Haswell in: P. Linn. Soc. X. S.Wales, v. 5 p. 98 t. 5 f. 4 | 1893 Orchestia chilensis (part.), 

 A. Della Valle in: F. Fi. Neapel, ».20 p. 498 | 1898 0. chiliensis, G.M.Thomson in: Tv. 

 N. Zealand Inst., v. 31 p. 199. 



Side plates not very deep, 5*^^ nearly as deep as 4^i\ Antenna 1 very 

 Short, flagellum 3 — 5-jointed (Dana) (Haswell: 6 — 8-jointed). Antenna 2, 

 peduncle 4 times as long as antenna 1, flagellum as long as peduncle or 

 shorter, 20-jointed; ultimate Joint of peduncle much longer than penultimate. 

 Gnathopod i in cJ, 5^^ Joint longer than 6^'^\ with small apical process, 6^^^ 

 narrowly oblong, very slightly dilated at apex, palm transverse, finger over- 

 lapping it. Gnathopod 2 in cJ, 6^^ Joint large, subovate, palm spinulose, 

 very oblique, ill-defined, having near the hinge a process, which tits into a 

 hollow of the elongate finger. Gnathopod 1 in g , 5*^ Joint longer than 6*11, 

 apex of which is scarcely broader than base of short finger. Guathopod 2 

 in 9, 5*^ Joint widened at middle of bind margin, H*'' Joint short, the rounded 

 apex little produced beyond the small longitudinal finger. Peraeopods 1—5 

 spinulose, peraeopods 3—5 with 2'^ Joint well expanded, bind margin of it 

 in peraeopod 5 almost straight with well rounded iower corner; peraeopods 4 

 and 5 long and slender. Uropod 1, outer ramus with only apical spines. 

 L. 10—12 mm. 



Tropical Pacific (Tongatabn, ander sea-weed; Port Denison [Queensland], on 

 Sandy beach). 



17. T. brito Stebb. 1891 T.b., T. Stebbing in: Ann. nat. Hist.. ser. 6 r.8 p. 324 

 1. 15 I 1895 T.b., Chevreux ip: Rev. biol. Nord France, v.7 p. 158 ; 1893 Orchestia 

 chilensis (part.), A. Della Yalle in: F. Fl. Neapel, 1.20 p. 498. 



Back moderately broad. Side-plate 1 directed somewhat forward, 

 narrower than the subequal, subquadrate 2'^ — 4*'*. Pleon segment 3, postero- 

 lateral corners quadrate. Eyes large, irregularly rounded, separated by less 

 than their width, in life white, with dark pigment showing through. Antenna 1 

 not quite reaching end of penultimate Joint of peduncle of antenna 2, 3 Joints 

 of peduncle subequal, or sometimes in 9 2'Uhe longest, flagellum less than half 

 as long as peduncle, 7-Jointed in ö, 5-Jointed in 9. Antenna 2, penultimate 

 Joint of peduncle more than half as long as the long and stout ultimate, flagellum 

 with about 30 short Joints in d, 22 in 0. Maxiila 1, miuute palp 2-Jointed. 

 Gnathopod 1 in d, 5*^ Joint long, with pellucid bubble-like process near distal 

 end of bind margin, 6^'^ much shorter, more spinöse, with similar process, 

 finger short, projecting beyond palm. Gnathopod 2 in d, 4^^ Joint sliort, 

 Square, 5*^ small, cup-shaped, G*'' massive, palm spinulose, scarcely crenulate, 



