32 



a distinct angle, palm nearly straight and armed with recurved teeth, those at 

 the extremity much stronger and claw-like; dactylus very strong, curved at 

 the tip. Posterior gnathopoda very slender, propodal joint oval and densely 

 hairy, dactylus veiy small and rudimentary. Meral joint of the 2 anterior 

 pairs of pereiopoda, especially that of the 2nd pair, laniinaiiy dilated. The 

 3 posterior pairs of pereiopoda comparatively short, successively increasing 

 in length, basal joint laminar, and forming in the anterior ones an angular 

 projection posteriorly. Uropoda only sligtly decreasing in size posteriorly, 

 rami subequal. Telson rounded, almost as broad as it is long, tip obtusely 

 truncated. Colour 1 ) whitish, with a more or less distinct light reddish tinge 

 on the sides of the body. Length of the largest specimen examined 28 mm. 



Remarks. This is the only, as yet, known species of the genus. 



All the specimens, which have hitherto been examined, were females, some of 

 which had their incubatory pouch filled with eggs or young. In the latter, 

 as stated above, the anterior gnathopoda have not yet assumed their peculiar 

 torsion and of course exhibit an appearance rather different from that of the 

 adult animal (see fig. p 1 jr.) 



Occurrence. The present remarkable form was first detected by the 

 late Prof. Rasch on the Storeggen-bank, outside of the west coast of Norway, 

 from a depth of about 100 fathoms. The specimens were obtained by sub- 

 merging in the dredge the skinned body of a newly shot bird to which they 

 were found clinging. It has subsequently been taken by Mr. Storm, curator of 

 the Drontheim Museum, from the skin of the common black dog-fish (Spinax niycr), 

 fished in the neighbourhood of the town. Finally Dr. Bovallius procured a 

 few specimens at Tjoto in Nordland and in the Hardarigerfjord. No doubt 

 the species leads, as a rule, a parasitic life, and this may easily explain the 

 peculiar formation of the anterior gnathopoda and oral parts. Out of Norway 

 this form has not yet been recorded. 



G-en. 2. Normania, Boeck, 1870. 



Body comparatively short and stout, with the coxal plates not very 

 deep. Cephalon of normal appearance. Eyes with the visual elements unu- 

 sually large. Antennae comparatively slender but not very elongated. Epi- 

 stome applanated, not defined from the anterior lip. Mandibles of the usual 

 structure, palp originating nearer the base than does the small molar expan- 

 sion, vory slender and almost bare, saving a few terminal seta 3 . First pair 

 of inaxilhr with the palp well developed, last joint laminar expanded, basal 

 loin- comparatively sliorl. witli 2 small apical seta\ Second pair of maxilla* 



According i<> a cuimininir;i<i<>n from Mr. Storm. 



