530 



Ake nordenstam 



Carapax a little longer than the 2nd and 3rd thoracic segments together, 

 as seen from above with the lateral margins slightly convex, anteriorly de- 

 creasing in width to about half the posterior width. Eye-peduncles conical, 

 situated in small cavities. Eyes well developed, brown, of about 10 closely 

 packed ocelli. Frontal margin between the eyes triangulate. Coxal plates on 

 the first free thoracic segment a little produced anteriorly and acute. 



The 5th and 6th thoracic segments are the longest. 



Fig. 3. Tanais {kx\3i\iinn\s) lineatus. a second antenna, X 140. ^ mandible, leit X I97- 

 c first maxilla, X 140. d maxilliped, X 197. e cheliped, X 104. 



