M3B«CTm MMHEPATOPCKOM AKAAEMIM HAyKl. 1896. MAM. T. IV, No 5. 



(Bulletin de I'Acad^raie Imp^riale des Sciences de St.-P6tersboiirg. 



1896. Mai. T. IV, J^ 5.) 



Crustacea Caspia. 



Contributions to the Knowledge of the Carcinological Fauna 



of the Caspian Sea. 



By 

 G. O. Sai-s, 



Professor of Zoology at the University of Christiania, Norway. 



Supplement. 

 With 12 autographic plates. 



INTRODUCTION. 



In the present paper, I propose to describe and figure a number of ad- 

 ditional Caspian Aniphipoda, the greater part of which are derived from the 

 rich collection of Dr. Grimm, kindly placed in my hands for examination. 

 To these are added some species collected by Mr. Warpachowsky in the 

 northern part of the Caspian Sea, and a few others procured by Messrs. 

 Maximovicz and Andrussow from the southern part of the basin. 

 Some of the species are unfortunately only represented by solitary specimens, 

 and the examination of these has of course not been so close as might have 

 been desired. Five of the species established by Dr. Grimm are altogether 

 omitted, because they are only represented by immature, or very badly pre- 

 served specimens, the examination of which has not led to any definite 

 result. These species are named by Dr. Grimm as follows: Gammarus 

 prisms, G. portentosus, G. multiformis, Pandora caeca, Iphigeneia abys- 

 sormn. Three other species are named by the said author in a short treatise 

 inserted in the Archiv fiir Naturgeschichte 1 880, viz., Gammarus Gregorkotvii, 

 G. coronifer and G. fhamnops; but none of these species are represented in 

 his collection. 



The number of additional species described in the present paper is 25. 

 Together with those previously recorded by the present author, the total 



^H3.-MaT. CTp. 351, I ■*" 



