U \ IV 



bium with two teeth on the innei side; tnenis .1 little 

 with .1 tooth al the end ol each margin; carpus distinctly shorter and more 

 th "ii the innei and three on the outei margin Second paii oi l< 



and moderatel) slender; dactylus \er\ long, even slightly longer than 

 L T ropods fig 2 h) vary as to length ; the peduncle is from a little mor< 

 in the t\\«» posterior abdominal segments combined, and it- Length in proportion to the 

 from being " , to scarcely ' , the inner margin oi the peduncle 1- coarse!} serrated, 

 and eth are elongated, nearlj spiniform, a Uttle curved and directed much backwards 



while the outer margin is parti) finely serrated 01 smooth , the endopod is long, with the inner margin serrated 

 u l( and aimed with ; spines, the distal one at the end near the very long terminal spine, 

 while the outei terminal spine 1- \ei\ small. The exopod is somewhat shorter than the endopod. 

 I.ei._ females with the marsupium halt developed 3 3.6 mm. 



Remark-. I serratipes 1- in general aspect somewhat similar to C. a/finis, but it is considerably 

 smaller and its appendages differ in many particulars; especially the armature of the two distal joints of 

 ad maxillipeds and the serration on third to sixth joint of third maxillipeds and third to fifth joint of 

 tir-t legs differ much in the two species further differences are found in the uropods, especially in the number 

 of spines on the innei margin of the endopod. The name serratipes has been chosen, because the marginal 

 serration in some pan- oi appendages 1- more developed than in any other northern species. — Sometimes 

 a proportionately somewhat low uumbei ol small dark dots may be seen on carapace and abdomen. 

 Occurrence. Taken by the "Ingolf" at two stations in the warm area. 



West of Iceland: Stat. 90: bat. 04 45' X., Long. 290b \V ., 568 lath., temp. 4.4 ; 1 specimen. 

 South-\\ Iceland : Stat. 78 I..11 <>o 7,7' X., Long. 27°52' W., 799 lath., temp. 4.3°; 12 specimens. 



Family Pseudocumatidae. 



This small family comprises only two marine genera with some few species, but it has arrived at much 

 richer development in the Caspian Sea. Only one of the marine genera has been found in the Ingolf area. 

 but as the other genus. Pseudocuma G. O. S., goes northwards to Lofoten, Fair Isle and Scotland, it may 

 possibly occur at the Faeroes. 



Petalosarsia Stebbing. 



Onl ies is known 



41 Petalosarsia declivis G. 0. Sars 



Jars l-'orh Vidensk. Selsk. Christiania For [864, p. [97 

 ount, III. p 77 PI LIV. 

 S1 »amp Due d'Orleans, Crust Malac. p. 121. PI. VI, figs, n -12. 



