4 THE VOYACxE OF H.M.S. CHALLENGER. 



During the "Transit of Venus" Expedition to Kcrguelen in 1875, two species of 

 Serolis were obtained, which were figured and described by Miers, one of these— *Serofc 

 septemcannata — being new. 



About the same time the German ship " Gazelle " collected a number of species of 

 Serolis both at Kerguelen and on the shores of South America, which were described by 

 Studer' in 1879. This paper contains, besides the description of a new species (Serolis 

 cornuta), a few notes upon the habits of these animals and upon some points in their 

 anatomy. 



A few notes upon certain of the species of Se)-olis that are described in the present 

 Keport are to be found in v. Willemoes Suhm's Preliminary Report upon the Crustacea 

 collected during the voyage of the Challenger.''' 



Finally, a recently published part of Bronn's Thierreichs (Bd. v. Abth. 2, Heft i.-x.) 

 contains a general account of the Isopoda by Prof A. Gerstaecker, where some description • 

 of the genus Serolis, especially of the geographical distribution, is given ; there are also 

 in this work a number of figures copied from the Memoirs of Grube and Studer; and a 

 compai'ative view of the various schemes of classification of the order Isopoda ; for this 

 reason I have not in the present Report entered into any account of the systematic 

 positions which have l)een assigned to the genus Serolis Ijy previous writers. 



1 Archivf. Natiiryesch., .lahrg. xlv. Bd. i. p. 11)4. 

 - Proc. Roy. Soc. Lond., vol. xxiv. p. 585, &c., 1876. 



