449 



and size, of the coxal plates, and the terminal lappet of the last peduncular 

 joint uf the superior antenna^ is in this species much smaller than in 

 the next. The Calliope grandocuUs of Sp. Bate I regard as the male of 

 this species. 



Occurrence. — The present form is very frequently met with along 

 the whole south and wests coast of Norway, and would seem, to judge from 

 some remarks made by Mr. Schneider, to occur also off the Finmark coast, 

 in the neighbourhood of Tromso. It is a pronounced littoral form, occurring 

 often in great shoals, swimming actively about close to the beach, and succes- 

 sively ascending it according as the tide flows up. 



Diftrihiition. — British Isles (Sp. Bate), coast of Bohuslan (Stockholm 

 Museum), Kattegat (Meinert), Dutch coast (Hoek), coast of France (Clievreux). 



9. Calliopius laeviusculus (Kroyer). 



(ri. 168). 



Ampliilhoc keviuniulHS, Kroyer, Gronlauds Ainnliipoder, Danske Vid.-Selsk. Afhaiull. VII, 



p. 281, ri. 3, fig. 13. 



Syn. : Atuphitliou serraticornis, M. Sars. 

 » ParaiiiphithoL' l£eviiiscula, Bruzel. 

 » Clalliope la^viuscula, Sp. Bate. 



Body on the whole more strongly built than in the preceding species, 

 though perhaps somewhat more elongated of form, and having the segments 

 of metasome very sharply defined, causing the upper contour of that division 

 to be obtusely jagged. First segment of urosome with a conspicuous trans- 

 verse depression dorsally. Cephalon scarcely attaining the length of the first 

 2 segments of mesosome combined, rostral projection very slight, lateral 

 corners obtusely rounded. Anterior pairs of coxal plates comparatively larger 

 and broader tlian in C. Bafhlei, and exceeding in depth the corresponding 

 segments, the first 3 pairs oval quadrangular in form ; 4th pair broader than 

 they are deep, and having the distal edge obliquely curved. Last pair of 

 epimeral plates of metasome scarcely at all produced at the lateral corners, 

 which are nearly rectangular, posterior edge but slightly curved. Eyes in 

 female of moderate size, in male considerably larger, being in both sexes oval 

 renifoi'm in shape, pigment very dark. Superior antennae equalling Va of the 

 length of the body, 1st joint of the peduncle about the length of the other 

 2 combined, terminal lappet of last joint very large, triangular, extending 

 beyond the 1st joint of the flagellum, and having a row of 8 calceolse, 

 Hagellum somewhat longer than the peduncle, and composed of 20 — 30 



