536 



Memoirs of the Indian Museum. 



[Vol. V, 



points they do not quite agree with his description which was drawn up from a 

 specimen only 8 mm, long and probably immature. 



In the third pleon segment there may be one or two teeth on the lower margin 

 and usually there are three or four very distinct teeth on the posterior margin ; 

 the anterior portion of the lower margin bears a series of spinules. 



The accessory appendage of the first antenna may contain as many as five 

 joints. Walker describes the hand of the second gnathopod in the female as being 

 concave. In my specimens the palm is slightly convex (fig. 5c) ; in the male the 

 palm is slightly concave towards the defining setules as shown in figure 56. 



e 5dy. 



Fig. 5. — Maera othonides Walker. 



a. First gnathopod of male. c. Second gnathopod of female. 



b. Second gnathopod of male. d. Third uropöd. 



The third uropods (fig. $d) especially in the older specimens bear a number 

 of delicate woolly hairs and similar hairs are found on the dorsal surface of the 

 posterior portion of the pleon. In the telson each lobe narrows greatly towards the 

 acute extremity which bears one long setule and two or more smaller ones; in my 

 specimens I cannot make out the second notch on the inside of each division which 

 is described and figured by Walker ; it is probably present only in immature 

 specimens. 



[Usually taken under stones just below water level, but also among algae off 

 shore. N.A.] 



