694 ME. H. G. JACKSON ON THE 



antenna is shorter in the female. Tlie whole is as long as the thorax, 

 and the peduncle reaches half-way across the 3rd somite. Goxcd 

 2)lates distinctly marked on all segments in both sexes. Abdomen 

 not abruptly contracted. Telson with acute median process ; 

 postero -lateral processes drawn out to equal or exceed the median 

 in length ; accessoiy processes long and acute. Moidli-jmrts : 

 2nd maxilla bilobed, but without hairy bristles on inner side. 

 Maxillipede with five joints of palp not clearly divided. First 

 perceopod with prominent inner process on propodus in male. I 

 find the first three legs of the male to have similar expansions on 

 the carpus and merus to the 1st leg of L. oceanica, but Chilton 

 does not mention the point, so it may not be universal or present 

 at all seasons of the year. Uropods 17"5 mm. 



Distribution. "Widely distributed on the warmer shores of the 

 Atlantic, Pacific, and Indian Oceans, and it has been recorded on 

 the American coast as far south as Chili and Puntarenas " (Chilton 

 (1906)). Budde-Lund's specimens are as follows: — Aden; 

 Bagamoja, Shellah-Lama, E. Africa ; Bissao ; Brazil ; Colombo ; 

 Malacca ; Nagasaki ; Rio de Janeiro ; Singapore ; Pulo Milo, 

 Tonga (Malay Archipelago). (See Richai-dson (1905) for further 

 list.) 



Budde-Lund describes under the name L. dentipes a species to 

 which he gives no character that distinguishes it from exotica. A 

 careful examination of his specimen reveals no cause why this 

 species should be any longer separated from L. exotica. 



Figured and described in detail by Chilton (1906). 



7. LiGiA OLFERSii Brandt. 



Ligyda oZ/ersn Richai-dson (1905), p. 674 (g-. v. for synonymy). 



Female specimen described, owing to mutilated condition of 

 the males in my possession. 



Length 19 mm. Breadth 9 mm. 



Surface minutely granular, rather smooth. Eyes of narrow- 

 oblong shape, separated by less than their horizontal length. 

 Antennce long and slender ; flagellum reaching as far back as hind 

 margin of thorax, peduncle to hind margin of 2nd thoracic somite. 

 Flagellum with 26 (broken) long and narrow segments. Goxal 

 plates divided by deep grooves on 2nd, 3rd, and 4th thoracic 

 somites. In the male there is no indication of the line of fusion. 

 Abdomen not abruptly contracted. Telson broadly triangulate ; 

 postero-lateral processes acute, but not longer than inner accessory 

 processes ; accessoi-y processes strongly marked. Mouth-parts : 

 2nd maxilla weakly bilobed, without hairy bristles ; maxillipede, 

 five divisions only indicated on mai'gin and not going right across 

 the palp. Perceopods of female typical in form. In the male the 

 carpus and merus of the 1st and 2nd are deeply excavated on the 

 inner side. Uropods 11 mm. 



Distribution. St. Thomas, Trinidad ; Florida; Brazil. 



Figures in Richardson (1905). 



