AUSTRALIAN MALACOSTRACA. 209 



or lobe on its outer margin. Dactyli of raptorial limbs armed 

 with six spines. [-3/1] 



Port Curtis. Generally distributed in the Indo-pacific region. 



G-enus Pseudosquilla, Guerin. 



Carapace not longitudinally costate ; cervical suture faintly 

 denned or obsolete posteriorly. Rostral plate reaching to and 

 covering the base of the eye-peduncles. Pour posterior thoracic 

 segments not covered by the carapace. Exposed thoracic and 

 abdominal segments compactly articulated ; the latter smooth, 

 not longitudinally costate ; the terminal segment well developed, 

 and bearing at its distal end two mobile spines. Dactylus of 

 the raptorial limbs not dilated at base, unarmed, or with few 

 spines on its inner margin. Appendages of three posterior 

 thoracic limbs slender and styliform. 



387. Pseudosquilla ciliata. 



? Squilla ciliata. Fabr., Ent. Syst, ii., p. 512 (1793) ; Owen, 

 Zool. Yoy. "Blossom," p. 90, pi. xxvii., fig. 5 (1839) ; White, 

 List Crust. Brit. Mm, p. 84 (1847). 



SqulUa stylifera, Lam., Hist, des An. sans Vert., v., p. 189 ; 

 Latr., Encycl., x., p. 472 ; Guerin, Icon., pi. xxiv., fig. 1 ; 

 M.-Edw., Hist. Nat. Crust., ii., p. 526. 



Pseudosquilla stylifera, Dana, IT. S. Explor. Exped., Crust., 

 i., p. 622, pi. xli., fig. 4. 



Pseudosquilla ciliata, Miers, Ann. Mag. N. H, (5), v., p. 108, 

 pi. iii., figs. 7, 8. 



Carapace smooth, with the longitudinal sutures straight and 

 continuous from the anterior to the posterior margin, but without 

 the transverse cervical suture ; its posterior margin straight, 

 with the antero-lateral and postero-lateral angles rounded and 

 not produced. Rostral plate nearly of a transversely oval shape, 

 smooth above. Exposed thoracic segments not produced laterally ; 

 the first segment very narrow and acute on the sides, the second 

 broader and laterally sub-truncated, the third more rounded 

 laterally. The fifth abdominal segment with a small tooth or 

 spine at its postero-lateral angle ; the sixth segment armed with 

 six spines, the second on each side being placed nearer to the 

 anterior margin. Telson armed with two longitudinal carina; on 



N 



