32 W. LlLLJEBORG, 



broad. Tlie flagellum appendiculare of the upper antennae has 3 joints, 

 with the I s joint longer than the other two pat together, and the point al- 

 ways turned upward. The lower antennae are in both sexes, but especially 

 in the male, considerably longer than the upper. The claw of the back 

 truncal feet is long and but slightly curved. We have found the body's 

 length 14 millini. 



It is met with on our western coasts form Bohuslan to Finmarken, 

 an in one or two places, as for example Haugesund and Molde in Norway 

 we have found it not uncommon, where the bottom is sandy, and at a depth 

 of 12 to 50 fathoms. 



14. A. OBTUSIFRONS, A. Boeck. 



Anonyx Obtusifrons, Axel BOECK: Forhandl. ved de Skand. Naturf:s 8:de 



Mode, 1860, pag. 643. 



This species is known to me only by Boeck's description. The 

 flagellum of the upper autennae has 8 joints, of which the first is as long 

 as all the rest together. The first joint of the flagellum appendiculare is 

 particularly long and provided with several spines on the lower side. The 

 exterior laminae of the maxillipcds have some few scattered coarse teeth 

 on the inner margin. The 3 nl caudal segment has its lower and back an- 

 gles drawn out into a long hook or point bent upwards. &c. It is taken 

 on the western coast of Norway. 



15. A. TUMIDUS, Kroyer. 



Anonyx Uimidus, H. Kroyer: Naturhist. Tidskr. 2 Raikke, 2 Bd. pag. 16. 

 „ „ R. Bruzelius: Skandinaviens Amphipoda Gammaridea, 



pag. 41. 



This species is by the nature of the mouth's appendages, by the 

 form of the hand belonging to the first pair of feet, and by the peculiarity 

 of its habits, so distinguished from every other species of the same genus, 

 that it might very well be considered as the type of a distinct genus. The 

 mamlibulae are remarkably small, have the egg-bearing end very small and 

 both side teeth exceedingly small, and are without processus aceessorius. 

 The tuberculum molare is very large but thin, brought up to a point and 

 destitute of bristles. The 1 pair of maxillae are short and have both 

 branches, especially the outer, very broad. The inner branch has at its 

 termination 5 coarse ciliated bristles, and the outer has a great many spi- 

 nes. The palp has the usual form. The 2 nd pair of maxillae, which are 



