i)4 AWPIirrODA I^OnMALIA. 



Hah. Charleston Harbour, South Carolina, U.S. Taken at low 

 water living in holes in the soft mud {Stlmpson). 



For a specimen of this species I am indebted to the kindness of 

 the discoverer. 



5. Ampelisca Japonica. (Plate XV. fig. 5.) B.M. 



Ampolisca Japouica, Stimpson, MS. 



Anterior portion of the percion laterally compressed and dorsally 

 cuneatcd. Superior antennae scarcely as long as the peduncle of 

 the inferior. Inferior antennae half as long as the animal ; the 

 penultimate and ultimate joints of the peduncle subequal ; flagellum 

 not longer than the peduncle. Fii-st pair of gnathopoda cylindrical, 

 having the cai-pus longer than the propodos, fringed above and 

 below with simple cilia. Second pair of gnathopoda cylindrical, 

 haAang the carpus as long again as the propodos, and fringed below 

 with simple cilia. Pereiopoda like those of ^. Gahnardii ; posterior 

 pair having the dactylos unguiculate, curved. Posterior pair of 

 pleopoda long, with styliform rami. 



Length ^ths of an inch. 

 Hah. Japan {Stimpson). 

 For a specimen of this species I am indebted to its author. 



6. Ampelisca pelagica. 



Pseudophthabuus pelagicus, Stimpson, Marine Invert. Grand Manan, 

 p. 67. 



" Inferior antennas as long as the body ; superior ones two-fifths as 

 long as the inferior ones. Posterior pair of pereiopoda with few, 

 stout, spine-like hairs. Antepenultimate and ultimate pairs of 

 pleopoda projecting beyond the penultimate. Pleon sinuated above 

 on the last three segments. Colour pale yellow, with a blotch of 

 dark-red pigment on the cephalon. 



" Length 0*4 of an inch. 



"Hah. Long Island, Grand Manan, on a soft muddy bottom in 35- 

 50 fathoms, and in Hake Bay in 30 fathoms sand." — Stimiison. 



7. Ampelisca macrocephala. 



Ampelisca macrocephala, Liljehorg, Ofversigt af Kongl. Vet, Akad. 



p. 7, 1852 ; ihid. 1855. 

 Ampelisca Esclirichti (?), Kroijer, Liljeborg, Ofversigt af Kongl. Vet. 



Akad. p. 22, 1851. 



" Cephalon long, produced. Eyes four, very minute, almost spherical ; 



