REPORT ON THE STOMATOPODA. 



107 



edges of the carapace are folded inwards, and the minute inner spine has appeared upon 

 the ventral process of the uropod. The abdomen is now flat and wide and the lateral 

 edges of the fifth somite are acute. 



The single specimen of the oldest stage (No. 4) was so badly preserved that many 

 points were obscure. It is shown in ventral view in PI. XIII. fig. 7. The abdomen 

 is wide and flat, the lateral edges of the carapace are folded in, and the basal 

 process of the uropod is as long as the telson, which is deeply angulated on the middle 

 line (PI. XIII. fig. 8). The secondary single spine between the submedian and the 

 intermediate is now much smaller than the latter, which has a minute spinule internal 

 to its base. The raptorial claw is flat and oval as it is in the adult Coronis. 



The striking resemblance which Glaus points out between the early stages of this 

 larva and a young Alima larva are superficial, since it is a true Erichthus, with the 

 ocular and antennary somites covered by the rostrum, the carapace folded downwards 

 and inwards at the sides, the outer spine of the basal prolongation of the uropod longer 

 than the inner, and only one instead of several secondary spines between the submedian 

 and the intermediate spines of the telson. 



While there are numerous specific diflerences between it and the larva of Coronis 

 excavatrix, a comparison of the various stages in the development of the two larvaj 

 will show their very close similarity, and there can be no doubt that this also is a 

 Lysiosqidlla, and it probably belongs to the subgenus Coronis also. 



Glaus figures several advanced larvae which agree with this one in the depression of 

 the hind body, the number and relative size of the marginal spines on the telson, the 



shape and character of the uropod, the width of the raptorial claw, the position of the 

 postero-lateral spines of the carapace and other features, and as he has also been able 

 to show that the dactylus of the raptorial claw of the older larvae is bordered by 



