OAMMAIUD.E. 75 



j)0(l;i terminate in a trident ; others have the point rcflexed, so as to 

 form a chib-shaped extremity. Under the microscope, a little mem- 

 branous cap or hood is seen to bo attached to the extremity of the 

 dactvlos, which is pointed and solid, and overtops the sharp point, — 

 an iinusual appendage, which may enable the animal to expose or 

 cover the imgniculato extremity at will. 



This species appears to bo rare, and peciiliar to the North ; I 

 liave only received it from the Moray Frith. It has been sent to 

 me by my valued correspondents the Rev. George Gordon and Mr. 

 Edward. 



6. Anonyx exiguus. (Plate XII. fig. 3.) B.M. 



Anonvx exiguus, Stimpso/i, 3Iarine Invert, of Grand 3Ianan, p. 51, 

 1853. 



Picon ha\-ing " the third segment tumid posteriorly, and curved down 

 towards the fourth ; " the posterior margin deeply concave ; the 

 infero-posterior angle produced and directed upwards; fourth 

 segment haNing a deep doi-sal sinus. Pereiopoda having the dac- 

 tylos long and slender ; basos of the tlu'ee posterior margi:is deeply 

 serrated along the posterior margin. 



Length ^jths of an inch. 

 " Colour yellowish." 



" Dredged on sandy bottoms in 8-15 fathoms, east of the passage 

 off Cheney's Head, Grand Manan." — Sthnpson. 



The figure and description are taken from a specimen forwarded 

 to me by the author. 



7. Anonyx Holbbllii. (Plate XII. fig. 4.) B.M. 



Anonyx IlolboUii, Kroyer, Voy. Scand. 



Spence Bate, Rcj). Brit. Assoc. 1855 ; Synopsis Brit. Amph., Ann. 



Nat. Hist. Feb. 1857. 

 White, Hist. Brit. Crust, p. 170. 

 Liljchory in Of vers, af Konyl. Vetensk. Akad. Forhandl. 1851. 



Eyes oblong, red. Superior antenna) half as long as the inferior ; 

 secondary appendage nearly as long as the flagcllum. Inferior 

 antenna) about one-fifth the length of the animal. First pair of 

 gnathopoda ha\ing the propodos a little longer than the carpus ; 

 the palm oblique, minutely pectinate, and defined by one ot two 

 spines near the inferior angle ; dactylos wath a tooth near the 

 middle of the concave margin. Second pair of gnathopoda having 

 the carpus longer than the propodos, and the dactylos vciy minute. 

 Three posterior pairs of pereiopoda having the basos serrated. 



Length ^?ths of an inch. 



Colour translucent white, blushed with rose along the dorsal sur- 

 face of the pcrcion and the posterior segments of the plcon. 



