Talorchestia 553 



convex, very oblique, closed finger leaving a small gap iiear hinge, otherwise 

 tittiiig palm except at overlapping apex. Gnathopod 1 in 9 nearly as in ö, 

 bat without the pellucid processes of 5*^ and 6^^^ joints, the latter naiTowing 

 to base of finger. Gnathopod 2 in 9 almpst membranaceous, 2^ Joint rather 

 narrowly oval, 5*'^ subdistally widened, 6*^ with rounded end produced beyond 

 the min Ute chela-forming finger. Peraeopods 2 and 3 shorter than the rest 

 and with much smaller finger, deeply notched in peraeopod 2, slightly in 

 peraeopod 3. In peraeopod 3, 2^ Joint subcircular, in peraeopod 4 broadly 

 oval, in peraeopod 5 as long as in peraeopod 4 but rather wider. In peraeo- 

 pods 4 and 5 joints 4 — 6 elongate, spinulose, none expanded. Pleopods, 

 peduncle long, membranaceous, rami with 15 or 16 joints. Uropods 1 and 2, 

 peduucle rather longer than the spinöse rami. Uropod 1 much the longest. 

 üropod 3, ramus about as long as peduncle. Telson nai'rowest at truncate 

 distal end, surrounded with gToups of spinules. Colour yellowish white, 

 with bars of yellow, side-plates bordered with purple, and sometimes pleon 

 banded with the same. L. d 20 mm, Q smaller. 



North-AtJantic (North-Devon, burrowing in sand; Verdon [G-ironde]). 



18. T. novaehoUandiae Stebb. 1899 T. n., T. Stebbing in : Tr. Linn. Soc. 

 London, ser. 2 v.7 p. 399 t.3lA. 



Body stout. IMeon segment 2, postero-lateral corners with an acute 

 point. segment 3 (Quadrate. Eyes round, dark, about their diameter apart. 

 Autenna 1 reaching beyond penultimate Joint of peduncle of antenna 2, joints 

 of peduucle not elongate, flagellum shorter than peduncle, 6-jointed. An- 

 tenna 2 verticillately spinulose. about Vs as long as body, ultimate Joint of 

 peduncle longer than penultimate, flagellum rather shorter than peduncle, 

 19-jointed. Gnathopod 1 in d, 5^*^ Joint longer than 6*^ with narrow apical 

 process, 6**^ short, much widened distally, finger overlapping palm but not process 

 of bind margin. Gnathopod 2 in «5 , 2^ Joint narrow, 6^^^ very large, slightly 

 widening to the almost transverse palm, which is defined by a small pocket, 

 a broad couvexity leadiug thence to a spinulose concave space near the finger- 

 hinge, over which space the finger arches, the convexity of its sinuous margin 

 touching the convexity of the palm and its apex passing into the defining 

 pocket. Gnathopod 1 in 5 see Fig. 94 (p. 543), 6*1^ Joint short, spinulose, 

 uarrowing very gradually to the short finger. Gnathopod 2 in 9 , 2^ Joint 

 membranaceous. well expanded, 6*^ Joint rather narrow. Peraeopods 1 — 5 

 spinulose, 2'^ Joint in peraeopods 3 — 5 well expanded, largest and broadest 

 in peraeopod 5, with subquadrate ending of bind margin, peraeopod 4 much 

 longer than peraeopod 3, peraeopod 5 considerably longer than peraeo- 

 pod 4, its 4''' and 5*^ joints rather long and stout. Uropods 1 — 3, on 

 peduncle and all rami, have marginal spines. üropod 3, ramus slender, 

 shorter than peduncle. Telson much longer than broad, composed of separate 

 halves, which appear to fold closely together, each with 2 apical spinules 

 and 2 marginal spines. L. about 10 mm. 



South-Pacific (ilanly Beach [East-Australiaj). 



19. T. martensii (M. Weber) 1892 Orchestia m., M. AVeber, Reise Xiederl. 

 O.-Ind., V. 2 p. 564 f. 13—16. 



Pleon segment 3, postero-lateral corners with produced point. Eyes 

 oval, as far apart as the shorter diameter. Antenna 1, 2*^ Joint of peduncle 

 the longest, flagellum shorter than peduncle, ö-jointed. Antenna 2, ultimate 

 and penultimate joints of peduncle long, flagellum almost as long as peduncle. 



