82 AMPniI'ODA NORMALIA. 



as the other four. Infeiior antenna' distinctly longer than the supe- 

 rior, more than twice as long in the male. Coxa of the second pair 

 of pcreiopoda deeply sinuated ; of the fifth pair rather smaller than 

 the preceding, but resembling it in other respects. 



" Hah. Christiansund and Bergen, Noi-vray," — Liljehorg. 



8. PONTOPOREIA. 



Pontoporeia, Kriiyer, Tidskr. vol. iv. p. 152. 



'' Antennae robust, subpediform ; peduncles thick, elongated ; ha\-ing 

 a very small secondaiy appendage to the superior pair. Mandibles 

 (instnimenta cibaria) short and broad. Gnathopoda very short, 

 robust ; fii'st pair- subchelate, second with a inidimentaiy dactylos. 

 First and second pairs of pereiopoda long, strong, subchehform (?), 

 the carpus dilated, and armed with a sharp conical dactylos. Tliird 

 and foiu'th pairs of pereiopoda recui'ved; the basos moderately 

 dilated ; the dactylos small. Posterior pair of pereiopoda recur\-ed ; 

 basos very largely developed, clypeiform ; the dactylos nearly rudi- 

 mentaiy. Coxa3 large, having the inferior margin of each, except 

 the posterior, furnished with plumose hairs. The anterior pairs of 

 pleopoda rather short, and otherwise of the usual form. Three 

 posterior pairs sharp and well armed." — Kroyer. 



Dana, in his ' Classification of Crustacea,' has made this genus the 

 tj'pe of a subfamily, PoNTOPOREiNiE. In this he has evidently been 

 led by Ki-oyer's describing the fii'st and second pairs of pereiopoda 

 as subcheliform, a statement that is not supported hj Kroyer's own 

 figures. I have therefore thought it advisable, since I have not seen 

 any specimen, to retain the genus, but, while doing so, to arrange it 

 next to Anonyx, from which it appears to differ immaterially. 



1. Pontoporeia femorata. (Plate XIV. fig. 1.) 



Pontoporeia femorata, Kroy/er, Nat. Tidskr. vol. iv. p. 153 ; Voyage en 

 Scand. pi. 23. f. 2. 



Eyes small, oval. Superior antennae having the peduncle as long as 

 the flagellum, and the first joint as long as the other two ; second- 

 ary appendage uniarticulate. Inferior antennae scarcely longer 

 than the superior ; the peduncle longer than the flageUum. First 

 pair of gnathopoda short, robust ; carpus broader than the pro- 

 podos ; propodos as broad as long ; palm oblique, slightly concave ; 

 dactylos shorter than the palm. Second paii- of gnathopoda having 

 the caqjus longer than the propodos. The two anterior pairs of 

 pereiopoda differ in no respect from those of Anonyx. The pos- 

 terior pail' of pereiopoda have the basos larger than in the two 



