STOMAPODA, ETC 1 . 

 FIG. 488. 



361 



Mysis stenolepis, Smith. 



forwards; together they constitute tlie group 

 called MACRURA, from the Greek makros, great, 

 and oura. a tail. 



The Sea-Mantis and its allies are often called GAS- 

 TRURA from the Gk. y aster r stomach, and oura, tail 

 because, unlike the preceding groups, they have the vis- 

 cera extending into the abdomen. They are also called 

 Stomapods from the Greek stoma, a mouth, and pous, 

 pod-as, a foot because several of the organs which normal- 

 Iv belong to the mouth have the form of feet. 



/ O 



Although the Stomapods Squilloidea (Squilla,etc.} are 

 related to the typical decapods ; they differ so much from 

 the latter, that Milne-Edwards, and some others, regard 

 them as an order entirely distinct from the Decapods. 



Some other decapod-like Crustacea (Diastylis, etc.), 

 which vary from all those now noticed, are referred to a 

 group named CUMACEA. 



FIG. 489. 



Dia&tylis quadrispinota, G. O. Sara. 



16 



