Talorchestia 547 



as ultimate Joint of peduncle, 21-jointed. Anteuna 2 in 9 much smaller than 

 in ö , 15-jointed. Gnathopod 1 in d*, 6*'' Joint rather long, widening a little 

 distallj, bind margin produced into a short narrow process, palm transverse, 

 concave, finger rather longer than palm. Gnathopod 2 in c?, 6*^ Joint large, 

 palm oblique, defined by a blunt tooth, with a second tooth close to it on 

 the distal side, and a rounded elevation about the middle; finger geniculate, 

 its apex lying between the two palmar teeth when the band is closed. 

 Whether the palmar teeth are side by side or successive is left indefinite 

 by the figure, which in fact shows neither of them. Gnathopod 1 in 9 , 

 ö*'^ Joint much longer and broader than the narrow 6*^^, which has a pellucid 

 process too small to give the limb a subchelate character. Gnathopod 2 

 in 9 , 6*^ Joint thrice as long as broad, not much produced beyond the 

 finger. Peraeopods 1 — 5 spiny and robust, peraeopods 3 — 5, 2<^ Joint broadly 

 rounded, in peraeopod 5 veiy broad and somewhat produced downward. 

 üropods 1 — 3 and telson plentifully furnished with marginal and apical spines 

 and spinules. L. 15 — 17 mm. 



South-Pacific (Tasmania). , 



6. T. limieola Hasw. 1880 T.I., Haswell in: P. Linn. Soc. K S. AVales, v.a 

 p.98 t. 5 f. 2 I 1893 Orchestia l, A.DellaValle in: F. Fl. Neapel, ».20 p. 505 t.57 f. 64. 



Antenna 1 very short, flagellum 5-jointed. Antenna 2 four times as long 

 as antenna 1, flagellum as long as peduncle, 12-jointed. Gnathopod 1 in d, 

 5*^ Joint with large subapical process, 6*^ oblong with distal widening, palm 

 transverse, slightly overlapped by finger. Gnathopod 2 in d, 6*^ Joint large, 

 broadly oblong, palm transverse, defined by a broad, apically notched tooth, 

 followed by an excavation to match the gTeat central process of the broad 

 but pointed finger. Gnathopod 1 in 9 , ö^'^ Joint little longer than 6**^, which 

 narrows to an apex not broader than base of finger. Gnathopod 2 in 9 , 

 b^^ and 6*^ joints subequal, 6*^ produced considerably beyond the longitudinal 

 finger. L. 9 mm. 



Queensland (Bowen). In Mangrove swamps, under decaying wood, etc. 



7. T. quoyana (M.-E.) 1840 Talitrus brevicornis + Orchestia q., H. Milne 

 Edwards, Hist. uat. Crust., v.3 p. 15, 19 j 1840 O. q., H. Milne Edwards in: G. Cuvier, 

 Kegne an., ed. 3 Crust. t. 59 f. 4 j 1893 0. q., A.DellaValle in: F. Fl. Neapel, «.20 

 p. 506 t.57 f. 68 I 1886 Talorchestia q., G. M. Thomson & Chilton in: Tr. N. Zealand 

 Inst., v.l% p. 146 I 1852 Talitrus novi-zealandiae, J.D.Dana in: P. Amer. Ac, v.2 

 p. 201 I 1853 & 55 Orchestia (Talitrus?) n. + T. brevicornis + 0. (Talorchestia?) 

 quoyana, J. D. Dana in: U. S. expl. Exp., v. 13n p. 852 t. 56 f. 5; p. 854 t. 56 f. 6; 

 p. 863 t. 58 f . 1 j 1862 Talitrus b., Orchestia b. -\- Orchestoidea? n. + Talorchestia q., 

 Bäte, Cat. Amphip. Brit. Mus., p. 9 t. la f. 6; p. 10 t. 1 f. 2; p. 16 t. 2 f. 7 | 1885 Tal- 

 orchestia armata, TJialorchestia a., Filhol in: Recu. Passage Venus, v.Sn Zool. p. 460 

 t. 53 f. 3; Planches p. 28. 



Back broad. Side-plate 1 produced forward with rounded angle and 

 straight fi'ont margin, side-plates 2 — 4 quadrate, successively broader, 5*^ 

 less deep than 4*^. Pleon segment 3, postero-lateral corners quadrate, with 

 the bind margin finely seiTulate. Eyes dark, irregularly rounded, scarcely 

 their own width apart. Antenna 1 reaching little beyond penultimate Joint 

 of peduncle of antenna 2, 1^* and 2* joints subequal, each longer than 3^, 

 flagellum shorter than peduncle, 8-jointed. Antenna 2, ultimate Joint of 

 peduncle in ö twice as long as penultimate, less in 9 , flagellum subequal to 

 peduncle, with about 30 joints, 27 in 9, 29 in d. Upper lip distally rather 

 narrowly rounded, inner plate with flat distal margin. Maxiila 1 with minute 

 2-jointed palp. Maxillipeds, 2^ Joint of palp veiy broad. Gnathopod 1 in d, 



35* 



