ARKIV FÖR ZOOLOGI. 



BAND 9. N:o 6. 



Two new species of Decapods. 



By 

 ARVID R. MOLANDER. 



With one Plate. 

 Communicated May 27th by Hj. Théel and Chr. Aurivillius. 



In the collection of Decapods belonging to the State 

 Museum of Sweden at Stockholm I have found two new 

 arctic species of Decapods, one of them a Spirontocaris, the 

 other an Eupagurus, which will be described in the following. 



I am indebted to G. Liljevall Esq. for the skilful way 

 in which he has executed the illustrations. 



Spirontocaris recurvirostris n. sp. 



Fig. 1. 



Diagnosis: 



Rostrum long, sharply bent with its upper edge 

 dentated. The base of the rostrum is free from 

 spinae över the orbits. 



The rostrum is well developed and makes a sharp cur- 

 vature upwards. The upper margin of the rostrum is pro- 

 vided with two or three teeth, the lower edge with four to 

 five, of which one is situated near the apex of the rostrum, 

 so that it looks almost bifid. On the carapace behind the 

 eyes there are generally teeth, Below the orbits there is a 

 spina on each side, whereas on other spina is found in the 

 anterior, lateral part of the carapace. The basal part of the 

 scaphocerit (the peduncel) carries several well developed teeth. 



Ärlciv för zoologi. Band 9. N:o 6. 1 



